[llvm] r347917 - [DAGCombiner] narrow truncated binops
Sanjay Patel via llvm-commits
llvm-commits at lists.llvm.org
Wed Dec 5 17:40:08 PST 2018
Hi David,
Thanks for reporting the problem. I don’t have any guesses as to how this
could cause OOM. Cc’ing some people that might.
If the problem is only showing up on PPC, a quick hack would be to add a
TLI hook and disable the transform for PPC. I’d prefer that to a full
revert (especially since I’ve already enhanced this code to handle some
vectors, and another enhancement is in progress)...unless we have a test
case that shows it’s not a PPC-specific bug?
Another option is to add a disablement flag and default it to disable until
we have a reproducer.
I can add the TLI hook or cripple flag tomorrow if that sounds reasonable.
On Wed, Dec 5, 2018 at 6:16 PM David Jones <dlj at google.com> wrote:
> Hi Sanjay,
>
> I've seen some instances of Clang going OOM, and it appears to cleanly
> bisect to this revision. The affected builds are while building Clang
> itself (FrontendAction, Sema, and a couple of others) targeting PPC with
> ASAN (which uses -O1).
>
> Unfortunately, since the reproduction requires running to OOM, reproducing
> takes longer than I would like. I haven't been able to get a useful,
> reduced example, but I am trying to get one (manually and via creduce). I'm
> also trying to reproduce with a Clang built with a few different sanitizers
> (although these are also a bit finicky, so no luck yet there, either.)
>
> I'm not familiar with this area of LLVM, so the best fix I can offer is a
> revert.
>
> Could you advise on a fix? (If you don't have a timely fix in mind,
> please let me know if you would like me to revert the revision for you.)
>
> Thanks,
> David Jones
>
> On Thu, Nov 29, 2018 at 1:01 PM Sanjay Patel via llvm-commits <
> llvm-commits at lists.llvm.org> wrote:
>
>> Author: spatel
>> Date: Thu Nov 29 12:58:26 2018
>> New Revision: 347917
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=347917&view=rev
>> Log:
>> [DAGCombiner] narrow truncated binops
>>
>> The motivating case for this is shown in:
>> https://bugs.llvm.org/show_bug.cgi?id=32023
>> and the corresponding rot16.ll regression tests.
>>
>> Because x86 scalar shift amounts are i8 values, we can end up with
>> trunc-binop-trunc
>> sequences that don't get folded in IR.
>>
>> As the TODO comments suggest, there will be regressions if we extend this
>> (for x86,
>> we mostly seem to be missing LEA opportunities, but there are likely
>> vector folds
>> missing too). I think those should be considered existing bugs because
>> this is the
>> same transform that we do as an IR canonicalization in instcombine. We
>> just need
>> more tests to make those visible independent of this patch.
>>
>> Differential Revision: https://reviews.llvm.org/D54640
>>
>> Modified:
>> llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
>> llvm/trunk/test/CodeGen/AMDGPU/cgp-bitfield-extract.ll
>> llvm/trunk/test/CodeGen/X86/2008-09-11-CoalescerBug2.ll
>> llvm/trunk/test/CodeGen/X86/2010-08-04-MaskedSignedCompare.ll
>> llvm/trunk/test/CodeGen/X86/add-sub-nsw-nuw.ll
>> llvm/trunk/test/CodeGen/X86/bool-math.ll
>> llvm/trunk/test/CodeGen/X86/clear-lowbits.ll
>> llvm/trunk/test/CodeGen/X86/cmov.ll
>> llvm/trunk/test/CodeGen/X86/extract-bits.ll
>> llvm/trunk/test/CodeGen/X86/extract-lowbits.ll
>> llvm/trunk/test/CodeGen/X86/fshl.ll
>> llvm/trunk/test/CodeGen/X86/fshr.ll
>> llvm/trunk/test/CodeGen/X86/funnel-shift-rot.ll
>> llvm/trunk/test/CodeGen/X86/funnel-shift.ll
>> llvm/trunk/test/CodeGen/X86/pr32284.ll
>> llvm/trunk/test/CodeGen/X86/pr37879.ll
>> llvm/trunk/test/CodeGen/X86/rot16.ll
>> llvm/trunk/test/CodeGen/X86/rotate.ll
>> llvm/trunk/test/CodeGen/X86/rotate4.ll
>> llvm/trunk/test/CodeGen/X86/schedule-x86-64-shld.ll
>> llvm/trunk/test/CodeGen/X86/scheduler-backtracking.ll
>> llvm/trunk/test/CodeGen/X86/test-shrink.ll
>> llvm/trunk/test/CodeGen/X86/xchg-nofold.ll
>>
>> Modified: llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp?rev=347917&r1=347916&r2=347917&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp (original)
>> +++ llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp Thu Nov 29
>> 12:58:26 2018
>> @@ -9722,6 +9722,28 @@ SDValue DAGCombiner::visitTRUNCATE(SDNod
>> if (SDValue NewVSel = matchVSelectOpSizesWithSetCC(N))
>> return NewVSel;
>>
>> + // Narrow a suitable binary operation with a constant operand by
>> moving it
>> + // ahead of the truncate. This is limited to pre-legalization because
>> targets
>> + // may prefer a wider type during later combines and invert this
>> transform.
>> + switch (N0.getOpcode()) {
>> + // TODO: Add case for ADD - that will likely require a change in logic
>> here
>> + // or target-specific changes to avoid regressions.
>> + case ISD::SUB:
>> + case ISD::MUL:
>> + case ISD::AND:
>> + case ISD::OR:
>> + case ISD::XOR:
>> + // TODO: This should allow vector constants/types too.
>> + if (!LegalOperations && N0.hasOneUse() &&
>> + (isa<ConstantSDNode>(N0.getOperand(0)) ||
>> + isa<ConstantSDNode>(N0.getOperand(1)))) {
>> + SDLoc DL(N);
>> + SDValue NarrowL = DAG.getNode(ISD::TRUNCATE, DL, VT,
>> N0.getOperand(0));
>> + SDValue NarrowR = DAG.getNode(ISD::TRUNCATE, DL, VT,
>> N0.getOperand(1));
>> + return DAG.getNode(N0.getOpcode(), DL, VT, NarrowL, NarrowR);
>> + }
>> + }
>> +
>> return SDValue();
>> }
>>
>>
>> Modified: llvm/trunk/test/CodeGen/AMDGPU/cgp-bitfield-extract.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AMDGPU/cgp-bitfield-extract.ll?rev=347917&r1=347916&r2=347917&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/CodeGen/AMDGPU/cgp-bitfield-extract.ll (original)
>> +++ llvm/trunk/test/CodeGen/AMDGPU/cgp-bitfield-extract.ll Thu Nov 29
>> 12:58:26 2018
>> @@ -125,11 +125,11 @@ ret:
>> ; GCN: s_cbranch_scc1
>>
>> ; SI: s_bfe_u32 s{{[0-9]+}}, s{{[0-9]+}}, 0x80004
>> -; VI: s_and_b32 s{{[0-9]+}}, [[BFE]], 0xff
>> +; VI: v_mov_b32_e32 v{{[0-9]+}}, 0xff
>>
>> ; GCN: BB2_2:
>> ; SI: s_bfe_u32 s{{[0-9]+}}, s{{[0-9]+}}, 0x70004
>> -; VI: s_and_b32 s{{[0-9]+}}, [[BFE]], 0x7f
>> +; VI: v_mov_b32_e32 v{{[0-9]+}}, 0x7f
>>
>> ; GCN: BB2_3:
>> ; GCN: buffer_store_short
>>
>> Modified: llvm/trunk/test/CodeGen/X86/2008-09-11-CoalescerBug2.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/2008-09-11-CoalescerBug2.ll?rev=347917&r1=347916&r2=347917&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/CodeGen/X86/2008-09-11-CoalescerBug2.ll (original)
>> +++ llvm/trunk/test/CodeGen/X86/2008-09-11-CoalescerBug2.ll Thu Nov 29
>> 12:58:26 2018
>> @@ -17,7 +17,7 @@ define i32 @func_44(i16 signext %p_46) n
>> ; SOURCE-SCHED-NEXT: setg %cl
>> ; SOURCE-SCHED-NEXT: movb g_73, %dl
>> ; SOURCE-SCHED-NEXT: xorl %eax, %eax
>> -; SOURCE-SCHED-NEXT: subl {{[0-9]+}}(%esp), %eax
>> +; SOURCE-SCHED-NEXT: subb {{[0-9]+}}(%esp), %al
>> ; SOURCE-SCHED-NEXT: testb %dl, %dl
>> ; SOURCE-SCHED-NEXT: jne .LBB0_2
>> ; SOURCE-SCHED-NEXT: # %bb.1: # %bb11
>>
>> Modified: llvm/trunk/test/CodeGen/X86/2010-08-04-MaskedSignedCompare.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/2010-08-04-MaskedSignedCompare.ll?rev=347917&r1=347916&r2=347917&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/CodeGen/X86/2010-08-04-MaskedSignedCompare.ll
>> (original)
>> +++ llvm/trunk/test/CodeGen/X86/2010-08-04-MaskedSignedCompare.ll Thu Nov
>> 29 12:58:26 2018
>> @@ -11,7 +11,7 @@ define i32 @main() nounwind {
>> ; CHECK: # %bb.0: # %entry
>> ; CHECK-NEXT: xorl %eax, %eax
>> ; CHECK-NEXT: cmpq {{.*}}(%rip), %rax
>> -; CHECK-NEXT: sbbl %eax, %eax
>> +; CHECK-NEXT: sbbb %al, %al
>> ; CHECK-NEXT: testb $-106, %al
>> ; CHECK-NEXT: jle .LBB0_1
>> ; CHECK-NEXT: # %bb.2: # %if.then
>>
>> Modified: llvm/trunk/test/CodeGen/X86/add-sub-nsw-nuw.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/add-sub-nsw-nuw.ll?rev=347917&r1=347916&r2=347917&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/CodeGen/X86/add-sub-nsw-nuw.ll (original)
>> +++ llvm/trunk/test/CodeGen/X86/add-sub-nsw-nuw.ll Thu Nov 29 12:58:26
>> 2018
>> @@ -9,7 +9,7 @@ define i8 @PR30841(i64 %argc) {
>> ; CHECK-LABEL: PR30841:
>> ; CHECK: ## %bb.0: ## %entry
>> ; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
>> -; CHECK-NEXT: negl %eax
>> +; CHECK-NEXT: negb %al
>> ; CHECK-NEXT: ## kill: def $al killed $al killed $eax
>> ; CHECK-NEXT: retl
>> entry:
>>
>> Modified: llvm/trunk/test/CodeGen/X86/bool-math.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/bool-math.ll?rev=347917&r1=347916&r2=347917&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/CodeGen/X86/bool-math.ll (original)
>> +++ llvm/trunk/test/CodeGen/X86/bool-math.ll Thu Nov 29 12:58:26 2018
>> @@ -33,7 +33,7 @@ define i8 @sub_zext_cmp_mask_narrower_re
>> ; CHECK-LABEL: sub_zext_cmp_mask_narrower_result:
>> ; CHECK: # %bb.0:
>> ; CHECK-NEXT: movl %edi, %eax
>> -; CHECK-NEXT: andl $1, %eax
>> +; CHECK-NEXT: andb $1, %al
>> ; CHECK-NEXT: orb $46, %al
>> ; CHECK-NEXT: # kill: def $al killed $al killed $eax
>> ; CHECK-NEXT: retq
>> @@ -77,7 +77,7 @@ define i8 @add_zext_cmp_mask_narrower_re
>> ; CHECK-LABEL: add_zext_cmp_mask_narrower_result:
>> ; CHECK: # %bb.0:
>> ; CHECK-NEXT: movl %edi, %eax
>> -; CHECK-NEXT: andl $1, %eax
>> +; CHECK-NEXT: andb $1, %al
>> ; CHECK-NEXT: xorb $43, %al
>> ; CHECK-NEXT: # kill: def $al killed $al killed $eax
>> ; CHECK-NEXT: retq
>> @@ -159,7 +159,7 @@ define i8 @low_bit_select_constants_bigg
>> ; CHECK-LABEL: low_bit_select_constants_bigger_true_narrower_result:
>> ; CHECK: # %bb.0:
>> ; CHECK-NEXT: movl %edi, %eax
>> -; CHECK-NEXT: andl $1, %eax
>> +; CHECK-NEXT: andb $1, %al
>> ; CHECK-NEXT: xorb $41, %al
>> ; CHECK-NEXT: # kill: def $al killed $al killed $eax
>> ; CHECK-NEXT: retq
>>
>> Modified: llvm/trunk/test/CodeGen/X86/clear-lowbits.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/clear-lowbits.ll?rev=347917&r1=347916&r2=347917&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/CodeGen/X86/clear-lowbits.ll (original)
>> +++ llvm/trunk/test/CodeGen/X86/clear-lowbits.ll Thu Nov 29 12:58:26 2018
>> @@ -866,10 +866,9 @@ define i16 @clear_lowbits16_ic0(i16 %val
>> ; X86-NOBMI2-LABEL: clear_lowbits16_ic0:
>> ; X86-NOBMI2: # %bb.0:
>> ; X86-NOBMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
>> -; X86-NOBMI2-NEXT: movw $16, %cx
>> -; X86-NOBMI2-NEXT: subw {{[0-9]+}}(%esp), %cx
>> +; X86-NOBMI2-NEXT: movb $16, %cl
>> +; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI2-NEXT: shrl %cl, %eax
>> -; X86-NOBMI2-NEXT: # kill: def $cl killed $cl killed $cx
>> ; X86-NOBMI2-NEXT: shll %cl, %eax
>> ; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
>> ; X86-NOBMI2-NEXT: retl
>> @@ -877,8 +876,8 @@ define i16 @clear_lowbits16_ic0(i16 %val
>> ; X86-BMI2-LABEL: clear_lowbits16_ic0:
>> ; X86-BMI2: # %bb.0:
>> ; X86-BMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
>> -; X86-BMI2-NEXT: movw $16, %cx
>> -; X86-BMI2-NEXT: subw {{[0-9]+}}(%esp), %cx
>> +; X86-BMI2-NEXT: movb $16, %cl
>> +; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
>> ; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
>> ; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
>> @@ -887,10 +886,9 @@ define i16 @clear_lowbits16_ic0(i16 %val
>> ; X64-NOBMI2-LABEL: clear_lowbits16_ic0:
>> ; X64-NOBMI2: # %bb.0:
>> ; X64-NOBMI2-NEXT: movzwl %di, %eax
>> -; X64-NOBMI2-NEXT: movl $16, %ecx
>> -; X64-NOBMI2-NEXT: subl %esi, %ecx
>> +; X64-NOBMI2-NEXT: movb $16, %cl
>> +; X64-NOBMI2-NEXT: subb %sil, %cl
>> ; X64-NOBMI2-NEXT: shrl %cl, %eax
>> -; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI2-NEXT: shll %cl, %eax
>> ; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
>> ; X64-NOBMI2-NEXT: retq
>> @@ -898,8 +896,8 @@ define i16 @clear_lowbits16_ic0(i16 %val
>> ; X64-BMI2-LABEL: clear_lowbits16_ic0:
>> ; X64-BMI2: # %bb.0:
>> ; X64-BMI2-NEXT: movzwl %di, %eax
>> -; X64-BMI2-NEXT: movl $16, %ecx
>> -; X64-BMI2-NEXT: subl %esi, %ecx
>> +; X64-BMI2-NEXT: movb $16, %cl
>> +; X64-BMI2-NEXT: subb %sil, %cl
>> ; X64-BMI2-NEXT: shrxl %ecx, %eax, %eax
>> ; X64-BMI2-NEXT: shlxl %ecx, %eax, %eax
>> ; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
>> @@ -962,10 +960,9 @@ define i16 @clear_lowbits16_ic2_load(i16
>> ; X86-NOBMI2: # %bb.0:
>> ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-NOBMI2-NEXT: movzwl (%eax), %eax
>> -; X86-NOBMI2-NEXT: movw $16, %cx
>> -; X86-NOBMI2-NEXT: subw {{[0-9]+}}(%esp), %cx
>> +; X86-NOBMI2-NEXT: movb $16, %cl
>> +; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI2-NEXT: shrl %cl, %eax
>> -; X86-NOBMI2-NEXT: # kill: def $cl killed $cl killed $cx
>> ; X86-NOBMI2-NEXT: shll %cl, %eax
>> ; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
>> ; X86-NOBMI2-NEXT: retl
>> @@ -974,8 +971,8 @@ define i16 @clear_lowbits16_ic2_load(i16
>> ; X86-BMI2: # %bb.0:
>> ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-BMI2-NEXT: movzwl (%eax), %eax
>> -; X86-BMI2-NEXT: movw $16, %cx
>> -; X86-BMI2-NEXT: subw {{[0-9]+}}(%esp), %cx
>> +; X86-BMI2-NEXT: movb $16, %cl
>> +; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
>> ; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
>> ; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
>> @@ -984,10 +981,9 @@ define i16 @clear_lowbits16_ic2_load(i16
>> ; X64-NOBMI2-LABEL: clear_lowbits16_ic2_load:
>> ; X64-NOBMI2: # %bb.0:
>> ; X64-NOBMI2-NEXT: movzwl (%rdi), %eax
>> -; X64-NOBMI2-NEXT: movl $16, %ecx
>> -; X64-NOBMI2-NEXT: subl %esi, %ecx
>> +; X64-NOBMI2-NEXT: movb $16, %cl
>> +; X64-NOBMI2-NEXT: subb %sil, %cl
>> ; X64-NOBMI2-NEXT: shrl %cl, %eax
>> -; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI2-NEXT: shll %cl, %eax
>> ; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
>> ; X64-NOBMI2-NEXT: retq
>> @@ -995,8 +991,8 @@ define i16 @clear_lowbits16_ic2_load(i16
>> ; X64-BMI2-LABEL: clear_lowbits16_ic2_load:
>> ; X64-BMI2: # %bb.0:
>> ; X64-BMI2-NEXT: movzwl (%rdi), %eax
>> -; X64-BMI2-NEXT: movl $16, %ecx
>> -; X64-BMI2-NEXT: subl %esi, %ecx
>> +; X64-BMI2-NEXT: movb $16, %cl
>> +; X64-BMI2-NEXT: subb %sil, %cl
>> ; X64-BMI2-NEXT: shrxl %ecx, %eax, %eax
>> ; X64-BMI2-NEXT: shlxl %ecx, %eax, %eax
>> ; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
>> @@ -1062,10 +1058,9 @@ define i16 @clear_lowbits16_ic4_commutat
>> ; X86-NOBMI2-LABEL: clear_lowbits16_ic4_commutative:
>> ; X86-NOBMI2: # %bb.0:
>> ; X86-NOBMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
>> -; X86-NOBMI2-NEXT: movw $16, %cx
>> -; X86-NOBMI2-NEXT: subw {{[0-9]+}}(%esp), %cx
>> +; X86-NOBMI2-NEXT: movb $16, %cl
>> +; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI2-NEXT: shrl %cl, %eax
>> -; X86-NOBMI2-NEXT: # kill: def $cl killed $cl killed $cx
>> ; X86-NOBMI2-NEXT: shll %cl, %eax
>> ; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
>> ; X86-NOBMI2-NEXT: retl
>> @@ -1073,8 +1068,8 @@ define i16 @clear_lowbits16_ic4_commutat
>> ; X86-BMI2-LABEL: clear_lowbits16_ic4_commutative:
>> ; X86-BMI2: # %bb.0:
>> ; X86-BMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
>> -; X86-BMI2-NEXT: movw $16, %cx
>> -; X86-BMI2-NEXT: subw {{[0-9]+}}(%esp), %cx
>> +; X86-BMI2-NEXT: movb $16, %cl
>> +; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
>> ; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
>> ; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
>> @@ -1083,10 +1078,9 @@ define i16 @clear_lowbits16_ic4_commutat
>> ; X64-NOBMI2-LABEL: clear_lowbits16_ic4_commutative:
>> ; X64-NOBMI2: # %bb.0:
>> ; X64-NOBMI2-NEXT: movzwl %di, %eax
>> -; X64-NOBMI2-NEXT: movl $16, %ecx
>> -; X64-NOBMI2-NEXT: subl %esi, %ecx
>> +; X64-NOBMI2-NEXT: movb $16, %cl
>> +; X64-NOBMI2-NEXT: subb %sil, %cl
>> ; X64-NOBMI2-NEXT: shrl %cl, %eax
>> -; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI2-NEXT: shll %cl, %eax
>> ; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
>> ; X64-NOBMI2-NEXT: retq
>> @@ -1094,8 +1088,8 @@ define i16 @clear_lowbits16_ic4_commutat
>> ; X64-BMI2-LABEL: clear_lowbits16_ic4_commutative:
>> ; X64-BMI2: # %bb.0:
>> ; X64-BMI2-NEXT: movzwl %di, %eax
>> -; X64-BMI2-NEXT: movl $16, %ecx
>> -; X64-BMI2-NEXT: subl %esi, %ecx
>> +; X64-BMI2-NEXT: movb $16, %cl
>> +; X64-BMI2-NEXT: subb %sil, %cl
>> ; X64-BMI2-NEXT: shrxl %ecx, %eax, %eax
>> ; X64-BMI2-NEXT: shlxl %ecx, %eax, %eax
>> ; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
>> @@ -1113,7 +1107,7 @@ define i32 @clear_lowbits32_ic0(i32 %val
>> ; X86-NOBMI2: # %bb.0:
>> ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-NOBMI2-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI2-NEXT: shrl %cl, %eax
>> ; X86-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI2-NEXT: shll %cl, %eax
>> @@ -1122,7 +1116,7 @@ define i32 @clear_lowbits32_ic0(i32 %val
>> ; X86-BMI2-LABEL: clear_lowbits32_ic0:
>> ; X86-BMI2: # %bb.0:
>> ; X86-BMI2-NEXT: xorl %eax, %eax
>> -; X86-BMI2-NEXT: subl {{[0-9]+}}(%esp), %eax
>> +; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al
>> ; X86-BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %ecx
>> ; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
>> ; X86-BMI2-NEXT: retl
>> @@ -1131,7 +1125,7 @@ define i32 @clear_lowbits32_ic0(i32 %val
>> ; X64-NOBMI2: # %bb.0:
>> ; X64-NOBMI2-NEXT: movl %esi, %ecx
>> ; X64-NOBMI2-NEXT: movl %edi, %eax
>> -; X64-NOBMI2-NEXT: negl %ecx
>> +; X64-NOBMI2-NEXT: negb %cl
>> ; X64-NOBMI2-NEXT: shrl %cl, %eax
>> ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI2-NEXT: shll %cl, %eax
>> @@ -1139,7 +1133,7 @@ define i32 @clear_lowbits32_ic0(i32 %val
>> ;
>> ; X64-BMI2-LABEL: clear_lowbits32_ic0:
>> ; X64-BMI2: # %bb.0:
>> -; X64-BMI2-NEXT: negl %esi
>> +; X64-BMI2-NEXT: negb %sil
>> ; X64-BMI2-NEXT: shrxl %esi, %edi, %eax
>> ; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
>> ; X64-BMI2-NEXT: retq
>> @@ -1197,7 +1191,7 @@ define i32 @clear_lowbits32_ic2_load(i32
>> ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-NOBMI2-NEXT: movl (%eax), %eax
>> ; X86-NOBMI2-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI2-NEXT: shrl %cl, %eax
>> ; X86-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI2-NEXT: shll %cl, %eax
>> @@ -1207,7 +1201,7 @@ define i32 @clear_lowbits32_ic2_load(i32
>> ; X86-BMI2: # %bb.0:
>> ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-BMI2-NEXT: xorl %ecx, %ecx
>> -; X86-BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI2-NEXT: shrxl %ecx, (%eax), %eax
>> ; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
>> ; X86-BMI2-NEXT: retl
>> @@ -1216,7 +1210,7 @@ define i32 @clear_lowbits32_ic2_load(i32
>> ; X64-NOBMI2: # %bb.0:
>> ; X64-NOBMI2-NEXT: movl %esi, %ecx
>> ; X64-NOBMI2-NEXT: movl (%rdi), %eax
>> -; X64-NOBMI2-NEXT: negl %ecx
>> +; X64-NOBMI2-NEXT: negb %cl
>> ; X64-NOBMI2-NEXT: shrl %cl, %eax
>> ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI2-NEXT: shll %cl, %eax
>> @@ -1224,7 +1218,7 @@ define i32 @clear_lowbits32_ic2_load(i32
>> ;
>> ; X64-BMI2-LABEL: clear_lowbits32_ic2_load:
>> ; X64-BMI2: # %bb.0:
>> -; X64-BMI2-NEXT: negl %esi
>> +; X64-BMI2-NEXT: negb %sil
>> ; X64-BMI2-NEXT: shrxl %esi, (%rdi), %eax
>> ; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
>> ; X64-BMI2-NEXT: retq
>> @@ -1285,7 +1279,7 @@ define i32 @clear_lowbits32_ic4_commutat
>> ; X86-NOBMI2: # %bb.0:
>> ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-NOBMI2-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI2-NEXT: shrl %cl, %eax
>> ; X86-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI2-NEXT: shll %cl, %eax
>> @@ -1294,7 +1288,7 @@ define i32 @clear_lowbits32_ic4_commutat
>> ; X86-BMI2-LABEL: clear_lowbits32_ic4_commutative:
>> ; X86-BMI2: # %bb.0:
>> ; X86-BMI2-NEXT: xorl %eax, %eax
>> -; X86-BMI2-NEXT: subl {{[0-9]+}}(%esp), %eax
>> +; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al
>> ; X86-BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %ecx
>> ; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
>> ; X86-BMI2-NEXT: retl
>> @@ -1303,7 +1297,7 @@ define i32 @clear_lowbits32_ic4_commutat
>> ; X64-NOBMI2: # %bb.0:
>> ; X64-NOBMI2-NEXT: movl %esi, %ecx
>> ; X64-NOBMI2-NEXT: movl %edi, %eax
>> -; X64-NOBMI2-NEXT: negl %ecx
>> +; X64-NOBMI2-NEXT: negb %cl
>> ; X64-NOBMI2-NEXT: shrl %cl, %eax
>> ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI2-NEXT: shll %cl, %eax
>> @@ -1311,7 +1305,7 @@ define i32 @clear_lowbits32_ic4_commutat
>> ;
>> ; X64-BMI2-LABEL: clear_lowbits32_ic4_commutative:
>> ; X64-BMI2: # %bb.0:
>> -; X64-BMI2-NEXT: negl %esi
>> +; X64-BMI2-NEXT: negb %sil
>> ; X64-BMI2-NEXT: shrxl %esi, %edi, %eax
>> ; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
>> ; X64-BMI2-NEXT: retq
>> @@ -1326,8 +1320,8 @@ define i32 @clear_lowbits32_ic4_commutat
>> define i64 @clear_lowbits64_ic0(i64 %val, i64 %numlowbits) nounwind {
>> ; X86-NOBMI2-LABEL: clear_lowbits64_ic0:
>> ; X86-NOBMI2: # %bb.0:
>> -; X86-NOBMI2-NEXT: movl $64, %ecx
>> -; X86-NOBMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI2-NEXT: movb $64, %cl
>> +; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI2-NEXT: movl $-1, %edx
>> ; X86-NOBMI2-NEXT: movl $-1, %eax
>> ; X86-NOBMI2-NEXT: shll %cl, %eax
>> @@ -1344,8 +1338,8 @@ define i64 @clear_lowbits64_ic0(i64 %val
>> ;
>> ; X86-BMI2-LABEL: clear_lowbits64_ic0:
>> ; X86-BMI2: # %bb.0:
>> -; X86-BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI2-NEXT: movb $64, %cl
>> +; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI2-NEXT: movl $-1, %edx
>> ; X86-BMI2-NEXT: shlxl %ecx, %edx, %eax
>> ; X86-BMI2-NEXT: shldl %cl, %edx, %edx
>> @@ -1363,7 +1357,7 @@ define i64 @clear_lowbits64_ic0(i64 %val
>> ; X64-NOBMI2: # %bb.0:
>> ; X64-NOBMI2-NEXT: movq %rsi, %rcx
>> ; X64-NOBMI2-NEXT: movq %rdi, %rax
>> -; X64-NOBMI2-NEXT: negl %ecx
>> +; X64-NOBMI2-NEXT: negb %cl
>> ; X64-NOBMI2-NEXT: shrq %cl, %rax
>> ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-NOBMI2-NEXT: shlq %cl, %rax
>> @@ -1371,7 +1365,7 @@ define i64 @clear_lowbits64_ic0(i64 %val
>> ;
>> ; X64-BMI2-LABEL: clear_lowbits64_ic0:
>> ; X64-BMI2: # %bb.0:
>> -; X64-BMI2-NEXT: negl %esi
>> +; X64-BMI2-NEXT: negb %sil
>> ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax
>> ; X64-BMI2-NEXT: shlxq %rsi, %rax, %rax
>> ; X64-BMI2-NEXT: retq
>> @@ -1446,8 +1440,8 @@ define i64 @clear_lowbits64_ic2_load(i64
>> ; X86-NOBMI2: # %bb.0:
>> ; X86-NOBMI2-NEXT: pushl %esi
>> ; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
>> -; X86-NOBMI2-NEXT: movl $64, %ecx
>> -; X86-NOBMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI2-NEXT: movb $64, %cl
>> +; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI2-NEXT: movl $-1, %edx
>> ; X86-NOBMI2-NEXT: movl $-1, %eax
>> ; X86-NOBMI2-NEXT: shll %cl, %eax
>> @@ -1467,8 +1461,8 @@ define i64 @clear_lowbits64_ic2_load(i64
>> ; X86-BMI2: # %bb.0:
>> ; X86-BMI2-NEXT: pushl %esi
>> ; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
>> -; X86-BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI2-NEXT: movb $64, %cl
>> +; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI2-NEXT: movl $-1, %edx
>> ; X86-BMI2-NEXT: shlxl %ecx, %edx, %eax
>> ; X86-BMI2-NEXT: shldl %cl, %edx, %edx
>> @@ -1487,7 +1481,7 @@ define i64 @clear_lowbits64_ic2_load(i64
>> ; X64-NOBMI2: # %bb.0:
>> ; X64-NOBMI2-NEXT: movq %rsi, %rcx
>> ; X64-NOBMI2-NEXT: movq (%rdi), %rax
>> -; X64-NOBMI2-NEXT: negl %ecx
>> +; X64-NOBMI2-NEXT: negb %cl
>> ; X64-NOBMI2-NEXT: shrq %cl, %rax
>> ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-NOBMI2-NEXT: shlq %cl, %rax
>> @@ -1495,7 +1489,7 @@ define i64 @clear_lowbits64_ic2_load(i64
>> ;
>> ; X64-BMI2-LABEL: clear_lowbits64_ic2_load:
>> ; X64-BMI2: # %bb.0:
>> -; X64-BMI2-NEXT: negl %esi
>> +; X64-BMI2-NEXT: negb %sil
>> ; X64-BMI2-NEXT: shrxq %rsi, (%rdi), %rax
>> ; X64-BMI2-NEXT: shlxq %rsi, %rax, %rax
>> ; X64-BMI2-NEXT: retq
>> @@ -1576,8 +1570,8 @@ define i64 @clear_lowbits64_ic3_load_ind
>> define i64 @clear_lowbits64_ic4_commutative(i64 %val, i64 %numlowbits)
>> nounwind {
>> ; X86-NOBMI2-LABEL: clear_lowbits64_ic4_commutative:
>> ; X86-NOBMI2: # %bb.0:
>> -; X86-NOBMI2-NEXT: movl $64, %ecx
>> -; X86-NOBMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI2-NEXT: movb $64, %cl
>> +; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI2-NEXT: movl $-1, %edx
>> ; X86-NOBMI2-NEXT: movl $-1, %eax
>> ; X86-NOBMI2-NEXT: shll %cl, %eax
>> @@ -1594,8 +1588,8 @@ define i64 @clear_lowbits64_ic4_commutat
>> ;
>> ; X86-BMI2-LABEL: clear_lowbits64_ic4_commutative:
>> ; X86-BMI2: # %bb.0:
>> -; X86-BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI2-NEXT: movb $64, %cl
>> +; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI2-NEXT: movl $-1, %edx
>> ; X86-BMI2-NEXT: shlxl %ecx, %edx, %eax
>> ; X86-BMI2-NEXT: shldl %cl, %edx, %edx
>> @@ -1613,7 +1607,7 @@ define i64 @clear_lowbits64_ic4_commutat
>> ; X64-NOBMI2: # %bb.0:
>> ; X64-NOBMI2-NEXT: movq %rsi, %rcx
>> ; X64-NOBMI2-NEXT: movq %rdi, %rax
>> -; X64-NOBMI2-NEXT: negl %ecx
>> +; X64-NOBMI2-NEXT: negb %cl
>> ; X64-NOBMI2-NEXT: shrq %cl, %rax
>> ; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-NOBMI2-NEXT: shlq %cl, %rax
>> @@ -1621,7 +1615,7 @@ define i64 @clear_lowbits64_ic4_commutat
>> ;
>> ; X64-BMI2-LABEL: clear_lowbits64_ic4_commutative:
>> ; X64-BMI2: # %bb.0:
>> -; X64-BMI2-NEXT: negl %esi
>> +; X64-BMI2-NEXT: negb %sil
>> ; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax
>> ; X64-BMI2-NEXT: shlxq %rsi, %rax, %rax
>> ; X64-BMI2-NEXT: retq
>>
>> Modified: llvm/trunk/test/CodeGen/X86/cmov.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/cmov.ll?rev=347917&r1=347916&r2=347917&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/CodeGen/X86/cmov.ll (original)
>> +++ llvm/trunk/test/CodeGen/X86/cmov.ll Thu Nov 29 12:58:26 2018
>> @@ -81,7 +81,7 @@ define i1 @test4() nounwind {
>> ; CHECK-NEXT: movsbl {{.*}}(%rip), %edx
>> ; CHECK-NEXT: movzbl %dl, %ecx
>> ; CHECK-NEXT: shrl $7, %ecx
>> -; CHECK-NEXT: xorl $1, %ecx
>> +; CHECK-NEXT: xorb $1, %cl
>> ; CHECK-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; CHECK-NEXT: sarl %cl, %edx
>> ; CHECK-NEXT: movb {{.*}}(%rip), %al
>>
>> Modified: llvm/trunk/test/CodeGen/X86/extract-bits.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/extract-bits.ll?rev=347917&r1=347916&r2=347917&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/CodeGen/X86/extract-bits.ll (original)
>> +++ llvm/trunk/test/CodeGen/X86/extract-bits.ll Thu Nov 29 12:58:26 2018
>> @@ -2983,7 +2983,7 @@ define i32 @bextr32_c0(i32 %val, i32 %nu
>> ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi
>> ; X86-NOBMI-NEXT: shrl %cl, %edi
>> ; X86-NOBMI-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl $-1, %esi
>> ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI-NEXT: shrl %cl, %esi
>> @@ -3005,7 +3005,7 @@ define i32 @bextr32_c0(i32 %val, i32 %nu
>> ; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %edi
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %edi
>> ; X86-BMI1NOTBM-NEXT: xorl %ecx, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %esi
>> ; X86-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %esi
>> @@ -3020,22 +3020,22 @@ define i32 @bextr32_c0(i32 %val, i32 %nu
>> ;
>> ; X86-BMI1BMI2-LABEL: bextr32_c0:
>> ; X86-BMI1BMI2: # %bb.0:
>> -; X86-BMI1BMI2-NEXT: pushl %edi
>> +; X86-BMI1BMI2-NEXT: pushl %ebx
>> ; X86-BMI1BMI2-NEXT: pushl %esi
>> ; X86-BMI1BMI2-NEXT: pushl %eax
>> -; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
>> +; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl
>> ; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
>> -; X86-BMI1BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %edi
>> -; X86-BMI1BMI2-NEXT: movl %esi, %eax
>> -; X86-BMI1BMI2-NEXT: negl %eax
>> +; X86-BMI1BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %esi
>> +; X86-BMI1BMI2-NEXT: movl %ebx, %eax
>> +; X86-BMI1BMI2-NEXT: negb %al
>> ; X86-BMI1BMI2-NEXT: movl $-1, %ecx
>> ; X86-BMI1BMI2-NEXT: shrxl %eax, %ecx, %eax
>> ; X86-BMI1BMI2-NEXT: movl %eax, (%esp)
>> ; X86-BMI1BMI2-NEXT: calll use32
>> -; X86-BMI1BMI2-NEXT: bzhil %esi, %edi, %eax
>> +; X86-BMI1BMI2-NEXT: bzhil %ebx, %esi, %eax
>> ; X86-BMI1BMI2-NEXT: addl $4, %esp
>> ; X86-BMI1BMI2-NEXT: popl %esi
>> -; X86-BMI1BMI2-NEXT: popl %edi
>> +; X86-BMI1BMI2-NEXT: popl %ebx
>> ; X86-BMI1BMI2-NEXT: retl
>> ;
>> ; X64-NOBMI-LABEL: bextr32_c0:
>> @@ -3047,7 +3047,7 @@ define i32 @bextr32_c0(i32 %val, i32 %nu
>> ; X64-NOBMI-NEXT: movl %edi, %ebx
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %ebx
>> -; X64-NOBMI-NEXT: negl %edx
>> +; X64-NOBMI-NEXT: negb %dl
>> ; X64-NOBMI-NEXT: movl $-1, %ebp
>> ; X64-NOBMI-NEXT: movl %edx, %ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %ebp
>> @@ -3069,7 +3069,7 @@ define i32 @bextr32_c0(i32 %val, i32 %nu
>> ; X64-BMI1NOTBM-NEXT: movl %edi, %ebx
>> ; X64-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-BMI1NOTBM-NEXT: shrl %cl, %ebx
>> -; X64-BMI1NOTBM-NEXT: negl %edx
>> +; X64-BMI1NOTBM-NEXT: negb %dl
>> ; X64-BMI1NOTBM-NEXT: movl $-1, %ebp
>> ; X64-BMI1NOTBM-NEXT: movl %edx, %ecx
>> ; X64-BMI1NOTBM-NEXT: shrl %cl, %ebp
>> @@ -3089,8 +3089,8 @@ define i32 @bextr32_c0(i32 %val, i32 %nu
>> ; X64-BMI1BMI2-NEXT: pushq %rax
>> ; X64-BMI1BMI2-NEXT: movl %edx, %ebx
>> ; X64-BMI1BMI2-NEXT: shrxl %esi, %edi, %ebp
>> -; X64-BMI1BMI2-NEXT: movl %edx, %eax
>> -; X64-BMI1BMI2-NEXT: negl %eax
>> +; X64-BMI1BMI2-NEXT: movl %ebx, %eax
>> +; X64-BMI1BMI2-NEXT: negb %al
>> ; X64-BMI1BMI2-NEXT: movl $-1, %ecx
>> ; X64-BMI1BMI2-NEXT: shrxl %eax, %ecx, %edi
>> ; X64-BMI1BMI2-NEXT: callq use32
>> @@ -3254,7 +3254,7 @@ define i32 @bextr32_c2_load(i32* %w, i32
>> ; X86-NOBMI-NEXT: movl (%eax), %edi
>> ; X86-NOBMI-NEXT: shrl %cl, %edi
>> ; X86-NOBMI-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl $-1, %esi
>> ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI-NEXT: shrl %cl, %esi
>> @@ -3277,7 +3277,7 @@ define i32 @bextr32_c2_load(i32* %w, i32
>> ; X86-BMI1NOTBM-NEXT: movl (%eax), %edi
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %edi
>> ; X86-BMI1NOTBM-NEXT: xorl %ecx, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %esi
>> ; X86-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %esi
>> @@ -3292,23 +3292,23 @@ define i32 @bextr32_c2_load(i32* %w, i32
>> ;
>> ; X86-BMI1BMI2-LABEL: bextr32_c2_load:
>> ; X86-BMI1BMI2: # %bb.0:
>> -; X86-BMI1BMI2-NEXT: pushl %edi
>> +; X86-BMI1BMI2-NEXT: pushl %ebx
>> ; X86-BMI1BMI2-NEXT: pushl %esi
>> ; X86-BMI1BMI2-NEXT: pushl %eax
>> -; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
>> +; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl
>> ; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
>> -; X86-BMI1BMI2-NEXT: shrxl %ecx, (%eax), %edi
>> -; X86-BMI1BMI2-NEXT: movl %esi, %eax
>> -; X86-BMI1BMI2-NEXT: negl %eax
>> +; X86-BMI1BMI2-NEXT: shrxl %ecx, (%eax), %esi
>> +; X86-BMI1BMI2-NEXT: movl %ebx, %eax
>> +; X86-BMI1BMI2-NEXT: negb %al
>> ; X86-BMI1BMI2-NEXT: movl $-1, %ecx
>> ; X86-BMI1BMI2-NEXT: shrxl %eax, %ecx, %eax
>> ; X86-BMI1BMI2-NEXT: movl %eax, (%esp)
>> ; X86-BMI1BMI2-NEXT: calll use32
>> -; X86-BMI1BMI2-NEXT: bzhil %esi, %edi, %eax
>> +; X86-BMI1BMI2-NEXT: bzhil %ebx, %esi, %eax
>> ; X86-BMI1BMI2-NEXT: addl $4, %esp
>> ; X86-BMI1BMI2-NEXT: popl %esi
>> -; X86-BMI1BMI2-NEXT: popl %edi
>> +; X86-BMI1BMI2-NEXT: popl %ebx
>> ; X86-BMI1BMI2-NEXT: retl
>> ;
>> ; X64-NOBMI-LABEL: bextr32_c2_load:
>> @@ -3320,7 +3320,7 @@ define i32 @bextr32_c2_load(i32* %w, i32
>> ; X64-NOBMI-NEXT: movl (%rdi), %ebp
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %ebp
>> -; X64-NOBMI-NEXT: negl %edx
>> +; X64-NOBMI-NEXT: negb %dl
>> ; X64-NOBMI-NEXT: movl $-1, %ebx
>> ; X64-NOBMI-NEXT: movl %edx, %ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %ebx
>> @@ -3342,7 +3342,7 @@ define i32 @bextr32_c2_load(i32* %w, i32
>> ; X64-BMI1NOTBM-NEXT: movl (%rdi), %ebp
>> ; X64-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-BMI1NOTBM-NEXT: shrl %cl, %ebp
>> -; X64-BMI1NOTBM-NEXT: negl %edx
>> +; X64-BMI1NOTBM-NEXT: negb %dl
>> ; X64-BMI1NOTBM-NEXT: movl $-1, %ebx
>> ; X64-BMI1NOTBM-NEXT: movl %edx, %ecx
>> ; X64-BMI1NOTBM-NEXT: shrl %cl, %ebx
>> @@ -3362,8 +3362,8 @@ define i32 @bextr32_c2_load(i32* %w, i32
>> ; X64-BMI1BMI2-NEXT: pushq %rax
>> ; X64-BMI1BMI2-NEXT: movl %edx, %ebx
>> ; X64-BMI1BMI2-NEXT: shrxl %esi, (%rdi), %ebp
>> -; X64-BMI1BMI2-NEXT: movl %edx, %eax
>> -; X64-BMI1BMI2-NEXT: negl %eax
>> +; X64-BMI1BMI2-NEXT: movl %ebx, %eax
>> +; X64-BMI1BMI2-NEXT: negb %al
>> ; X64-BMI1BMI2-NEXT: movl $-1, %ecx
>> ; X64-BMI1BMI2-NEXT: shrxl %eax, %ecx, %edi
>> ; X64-BMI1BMI2-NEXT: callq use32
>> @@ -3531,7 +3531,7 @@ define i32 @bextr32_c4_commutative(i32 %
>> ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edi
>> ; X86-NOBMI-NEXT: shrl %cl, %edi
>> ; X86-NOBMI-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl $-1, %esi
>> ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI-NEXT: shrl %cl, %esi
>> @@ -3553,7 +3553,7 @@ define i32 @bextr32_c4_commutative(i32 %
>> ; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %edi
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %edi
>> ; X86-BMI1NOTBM-NEXT: xorl %ecx, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %esi
>> ; X86-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %esi
>> @@ -3568,22 +3568,22 @@ define i32 @bextr32_c4_commutative(i32 %
>> ;
>> ; X86-BMI1BMI2-LABEL: bextr32_c4_commutative:
>> ; X86-BMI1BMI2: # %bb.0:
>> -; X86-BMI1BMI2-NEXT: pushl %edi
>> +; X86-BMI1BMI2-NEXT: pushl %ebx
>> ; X86-BMI1BMI2-NEXT: pushl %esi
>> ; X86-BMI1BMI2-NEXT: pushl %eax
>> -; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
>> +; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl
>> ; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
>> -; X86-BMI1BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %edi
>> -; X86-BMI1BMI2-NEXT: movl %esi, %eax
>> -; X86-BMI1BMI2-NEXT: negl %eax
>> +; X86-BMI1BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %esi
>> +; X86-BMI1BMI2-NEXT: movl %ebx, %eax
>> +; X86-BMI1BMI2-NEXT: negb %al
>> ; X86-BMI1BMI2-NEXT: movl $-1, %ecx
>> ; X86-BMI1BMI2-NEXT: shrxl %eax, %ecx, %eax
>> ; X86-BMI1BMI2-NEXT: movl %eax, (%esp)
>> ; X86-BMI1BMI2-NEXT: calll use32
>> -; X86-BMI1BMI2-NEXT: bzhil %esi, %edi, %eax
>> +; X86-BMI1BMI2-NEXT: bzhil %ebx, %esi, %eax
>> ; X86-BMI1BMI2-NEXT: addl $4, %esp
>> ; X86-BMI1BMI2-NEXT: popl %esi
>> -; X86-BMI1BMI2-NEXT: popl %edi
>> +; X86-BMI1BMI2-NEXT: popl %ebx
>> ; X86-BMI1BMI2-NEXT: retl
>> ;
>> ; X64-NOBMI-LABEL: bextr32_c4_commutative:
>> @@ -3595,7 +3595,7 @@ define i32 @bextr32_c4_commutative(i32 %
>> ; X64-NOBMI-NEXT: movl %edi, %ebx
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %ebx
>> -; X64-NOBMI-NEXT: negl %edx
>> +; X64-NOBMI-NEXT: negb %dl
>> ; X64-NOBMI-NEXT: movl $-1, %ebp
>> ; X64-NOBMI-NEXT: movl %edx, %ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %ebp
>> @@ -3617,7 +3617,7 @@ define i32 @bextr32_c4_commutative(i32 %
>> ; X64-BMI1NOTBM-NEXT: movl %edi, %ebx
>> ; X64-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-BMI1NOTBM-NEXT: shrl %cl, %ebx
>> -; X64-BMI1NOTBM-NEXT: negl %edx
>> +; X64-BMI1NOTBM-NEXT: negb %dl
>> ; X64-BMI1NOTBM-NEXT: movl $-1, %ebp
>> ; X64-BMI1NOTBM-NEXT: movl %edx, %ecx
>> ; X64-BMI1NOTBM-NEXT: shrl %cl, %ebp
>> @@ -3637,8 +3637,8 @@ define i32 @bextr32_c4_commutative(i32 %
>> ; X64-BMI1BMI2-NEXT: pushq %rax
>> ; X64-BMI1BMI2-NEXT: movl %edx, %ebx
>> ; X64-BMI1BMI2-NEXT: shrxl %esi, %edi, %ebp
>> -; X64-BMI1BMI2-NEXT: movl %edx, %eax
>> -; X64-BMI1BMI2-NEXT: negl %eax
>> +; X64-BMI1BMI2-NEXT: movl %ebx, %eax
>> +; X64-BMI1BMI2-NEXT: negb %al
>> ; X64-BMI1BMI2-NEXT: movl $-1, %ecx
>> ; X64-BMI1BMI2-NEXT: shrxl %eax, %ecx, %edi
>> ; X64-BMI1BMI2-NEXT: callq use32
>> @@ -3667,7 +3667,7 @@ define i32 @bextr32_c5_skipextrauses(i32
>> ; X86-NOBMI-NEXT: movl %ebx, %ecx
>> ; X86-NOBMI-NEXT: shrl %cl, %edi
>> ; X86-NOBMI-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl $-1, %esi
>> ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI-NEXT: shrl %cl, %esi
>> @@ -3694,7 +3694,7 @@ define i32 @bextr32_c5_skipextrauses(i32
>> ; X86-BMI1NOTBM-NEXT: movl %ebx, %ecx
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %edi
>> ; X86-BMI1NOTBM-NEXT: xorl %ecx, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %esi
>> ; X86-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %esi
>> @@ -3716,16 +3716,16 @@ define i32 @bextr32_c5_skipextrauses(i32
>> ; X86-BMI1BMI2-NEXT: pushl %edi
>> ; X86-BMI1BMI2-NEXT: pushl %esi
>> ; X86-BMI1BMI2-NEXT: subl $16, %esp
>> -; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
>> +; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl
>> ; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %edi
>> -; X86-BMI1BMI2-NEXT: shrxl %edi, {{[0-9]+}}(%esp), %ebx
>> -; X86-BMI1BMI2-NEXT: movl %esi, %eax
>> -; X86-BMI1BMI2-NEXT: negl %eax
>> +; X86-BMI1BMI2-NEXT: shrxl %edi, {{[0-9]+}}(%esp), %esi
>> +; X86-BMI1BMI2-NEXT: movl %ebx, %eax
>> +; X86-BMI1BMI2-NEXT: negb %al
>> ; X86-BMI1BMI2-NEXT: movl $-1, %ecx
>> ; X86-BMI1BMI2-NEXT: shrxl %eax, %ecx, %eax
>> ; X86-BMI1BMI2-NEXT: movl %eax, (%esp)
>> ; X86-BMI1BMI2-NEXT: calll use32
>> -; X86-BMI1BMI2-NEXT: bzhil %esi, %ebx, %esi
>> +; X86-BMI1BMI2-NEXT: bzhil %ebx, %esi, %esi
>> ; X86-BMI1BMI2-NEXT: movl %edi, (%esp)
>> ; X86-BMI1BMI2-NEXT: calll use32
>> ; X86-BMI1BMI2-NEXT: movl %esi, %eax
>> @@ -3744,7 +3744,7 @@ define i32 @bextr32_c5_skipextrauses(i32
>> ; X64-NOBMI-NEXT: movl %edi, %ebp
>> ; X64-NOBMI-NEXT: movl %r14d, %ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %ebp
>> -; X64-NOBMI-NEXT: negl %edx
>> +; X64-NOBMI-NEXT: negb %dl
>> ; X64-NOBMI-NEXT: movl $-1, %ebx
>> ; X64-NOBMI-NEXT: movl %edx, %ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %ebx
>> @@ -3768,7 +3768,7 @@ define i32 @bextr32_c5_skipextrauses(i32
>> ; X64-BMI1NOTBM-NEXT: movl %edi, %ebp
>> ; X64-BMI1NOTBM-NEXT: movl %r14d, %ecx
>> ; X64-BMI1NOTBM-NEXT: shrl %cl, %ebp
>> -; X64-BMI1NOTBM-NEXT: negl %edx
>> +; X64-BMI1NOTBM-NEXT: negb %dl
>> ; X64-BMI1NOTBM-NEXT: movl $-1, %ebx
>> ; X64-BMI1NOTBM-NEXT: movl %edx, %ecx
>> ; X64-BMI1NOTBM-NEXT: shrl %cl, %ebx
>> @@ -3791,8 +3791,8 @@ define i32 @bextr32_c5_skipextrauses(i32
>> ; X64-BMI1BMI2-NEXT: movl %edx, %ebx
>> ; X64-BMI1BMI2-NEXT: movl %esi, %ebp
>> ; X64-BMI1BMI2-NEXT: shrxl %esi, %edi, %r14d
>> -; X64-BMI1BMI2-NEXT: movl %edx, %eax
>> -; X64-BMI1BMI2-NEXT: negl %eax
>> +; X64-BMI1BMI2-NEXT: movl %ebx, %eax
>> +; X64-BMI1BMI2-NEXT: negb %al
>> ; X64-BMI1BMI2-NEXT: movl $-1, %ecx
>> ; X64-BMI1BMI2-NEXT: shrxl %eax, %ecx, %edi
>> ; X64-BMI1BMI2-NEXT: callq use32
>> @@ -3835,8 +3835,8 @@ define i64 @bextr64_c0(i64 %val, i64 %nu
>> ; X86-NOBMI-NEXT: movl %edi, %esi
>> ; X86-NOBMI-NEXT: xorl %edi, %edi
>> ; X86-NOBMI-NEXT: .LBB32_2:
>> -; X86-NOBMI-NEXT: movl $64, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: movb $64, %cl
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl $-1, %ebp
>> ; X86-NOBMI-NEXT: movl $-1, %ebx
>> ; X86-NOBMI-NEXT: shrl %cl, %ebx
>> @@ -3882,8 +3882,8 @@ define i64 @bextr64_c0(i64 %val, i64 %nu
>> ; X86-BMI1NOTBM-NEXT: movl %edi, %esi
>> ; X86-BMI1NOTBM-NEXT: xorl %edi, %edi
>> ; X86-BMI1NOTBM-NEXT: .LBB32_2:
>> -; X86-BMI1NOTBM-NEXT: movl $64, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: movb $64, %cl
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %ebp
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %ebx
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %ebx
>> @@ -3928,8 +3928,8 @@ define i64 @bextr64_c0(i64 %val, i64 %nu
>> ; X86-BMI1BMI2-NEXT: movl %edi, %esi
>> ; X86-BMI1BMI2-NEXT: xorl %edi, %edi
>> ; X86-BMI1BMI2-NEXT: .LBB32_2:
>> -; X86-BMI1BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI1BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1BMI2-NEXT: movb $64, %cl
>> +; X86-BMI1BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1BMI2-NEXT: movl $-1, %ebx
>> ; X86-BMI1BMI2-NEXT: shrxl %ecx, %ebx, %ebp
>> ; X86-BMI1BMI2-NEXT: shrdl %cl, %ebx, %ebx
>> @@ -3964,7 +3964,7 @@ define i64 @bextr64_c0(i64 %val, i64 %nu
>> ; X64-NOBMI-NEXT: movq %rdi, %r14
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-NOBMI-NEXT: shrq %cl, %r14
>> -; X64-NOBMI-NEXT: negl %edx
>> +; X64-NOBMI-NEXT: negb %dl
>> ; X64-NOBMI-NEXT: movq $-1, %rbx
>> ; X64-NOBMI-NEXT: movl %edx, %ecx
>> ; X64-NOBMI-NEXT: shrq %cl, %rbx
>> @@ -3986,7 +3986,7 @@ define i64 @bextr64_c0(i64 %val, i64 %nu
>> ; X64-BMI1NOTBM-NEXT: movq %rdi, %r14
>> ; X64-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-BMI1NOTBM-NEXT: shrq %cl, %r14
>> -; X64-BMI1NOTBM-NEXT: negl %edx
>> +; X64-BMI1NOTBM-NEXT: negb %dl
>> ; X64-BMI1NOTBM-NEXT: movq $-1, %rbx
>> ; X64-BMI1NOTBM-NEXT: movl %edx, %ecx
>> ; X64-BMI1NOTBM-NEXT: shrq %cl, %rbx
>> @@ -4007,7 +4007,7 @@ define i64 @bextr64_c0(i64 %val, i64 %nu
>> ; X64-BMI1BMI2-NEXT: movq %rdx, %rbx
>> ; X64-BMI1BMI2-NEXT: shrxq %rsi, %rdi, %r14
>> ; X64-BMI1BMI2-NEXT: movl %ebx, %eax
>> -; X64-BMI1BMI2-NEXT: negl %eax
>> +; X64-BMI1BMI2-NEXT: negb %al
>> ; X64-BMI1BMI2-NEXT: movq $-1, %rcx
>> ; X64-BMI1BMI2-NEXT: shrxq %rax, %rcx, %rdi
>> ; X64-BMI1BMI2-NEXT: callq use64
>> @@ -4257,8 +4257,8 @@ define i64 @bextr64_c2_load(i64* %w, i64
>> ; X86-NOBMI-NEXT: movl %edi, %esi
>> ; X86-NOBMI-NEXT: xorl %edi, %edi
>> ; X86-NOBMI-NEXT: .LBB34_2:
>> -; X86-NOBMI-NEXT: movl $64, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: movb $64, %cl
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl $-1, %ebp
>> ; X86-NOBMI-NEXT: movl $-1, %ebx
>> ; X86-NOBMI-NEXT: shrl %cl, %ebx
>> @@ -4305,8 +4305,8 @@ define i64 @bextr64_c2_load(i64* %w, i64
>> ; X86-BMI1NOTBM-NEXT: movl %edi, %esi
>> ; X86-BMI1NOTBM-NEXT: xorl %edi, %edi
>> ; X86-BMI1NOTBM-NEXT: .LBB34_2:
>> -; X86-BMI1NOTBM-NEXT: movl $64, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: movb $64, %cl
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %ebp
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %ebx
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %ebx
>> @@ -4352,8 +4352,8 @@ define i64 @bextr64_c2_load(i64* %w, i64
>> ; X86-BMI1BMI2-NEXT: movl %edi, %esi
>> ; X86-BMI1BMI2-NEXT: xorl %edi, %edi
>> ; X86-BMI1BMI2-NEXT: .LBB34_2:
>> -; X86-BMI1BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI1BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1BMI2-NEXT: movb $64, %cl
>> +; X86-BMI1BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1BMI2-NEXT: movl $-1, %ebx
>> ; X86-BMI1BMI2-NEXT: shrxl %ecx, %ebx, %ebp
>> ; X86-BMI1BMI2-NEXT: shrdl %cl, %ebx, %ebx
>> @@ -4388,7 +4388,7 @@ define i64 @bextr64_c2_load(i64* %w, i64
>> ; X64-NOBMI-NEXT: movq (%rdi), %r14
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-NOBMI-NEXT: shrq %cl, %r14
>> -; X64-NOBMI-NEXT: negl %edx
>> +; X64-NOBMI-NEXT: negb %dl
>> ; X64-NOBMI-NEXT: movq $-1, %rbx
>> ; X64-NOBMI-NEXT: movl %edx, %ecx
>> ; X64-NOBMI-NEXT: shrq %cl, %rbx
>> @@ -4410,7 +4410,7 @@ define i64 @bextr64_c2_load(i64* %w, i64
>> ; X64-BMI1NOTBM-NEXT: movq (%rdi), %r14
>> ; X64-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-BMI1NOTBM-NEXT: shrq %cl, %r14
>> -; X64-BMI1NOTBM-NEXT: negl %edx
>> +; X64-BMI1NOTBM-NEXT: negb %dl
>> ; X64-BMI1NOTBM-NEXT: movq $-1, %rbx
>> ; X64-BMI1NOTBM-NEXT: movl %edx, %ecx
>> ; X64-BMI1NOTBM-NEXT: shrq %cl, %rbx
>> @@ -4431,7 +4431,7 @@ define i64 @bextr64_c2_load(i64* %w, i64
>> ; X64-BMI1BMI2-NEXT: movq %rdx, %rbx
>> ; X64-BMI1BMI2-NEXT: shrxq %rsi, (%rdi), %r14
>> ; X64-BMI1BMI2-NEXT: movl %ebx, %eax
>> -; X64-BMI1BMI2-NEXT: negl %eax
>> +; X64-BMI1BMI2-NEXT: negb %al
>> ; X64-BMI1BMI2-NEXT: movq $-1, %rcx
>> ; X64-BMI1BMI2-NEXT: shrxq %rax, %rcx, %rdi
>> ; X64-BMI1BMI2-NEXT: callq use64
>> @@ -4685,8 +4685,8 @@ define i64 @bextr64_c4_commutative(i64 %
>> ; X86-NOBMI-NEXT: movl %edi, %esi
>> ; X86-NOBMI-NEXT: xorl %edi, %edi
>> ; X86-NOBMI-NEXT: .LBB36_2:
>> -; X86-NOBMI-NEXT: movl $64, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: movb $64, %cl
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl $-1, %ebp
>> ; X86-NOBMI-NEXT: movl $-1, %ebx
>> ; X86-NOBMI-NEXT: shrl %cl, %ebx
>> @@ -4732,8 +4732,8 @@ define i64 @bextr64_c4_commutative(i64 %
>> ; X86-BMI1NOTBM-NEXT: movl %edi, %esi
>> ; X86-BMI1NOTBM-NEXT: xorl %edi, %edi
>> ; X86-BMI1NOTBM-NEXT: .LBB36_2:
>> -; X86-BMI1NOTBM-NEXT: movl $64, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: movb $64, %cl
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %ebp
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %ebx
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %ebx
>> @@ -4778,8 +4778,8 @@ define i64 @bextr64_c4_commutative(i64 %
>> ; X86-BMI1BMI2-NEXT: movl %edi, %esi
>> ; X86-BMI1BMI2-NEXT: xorl %edi, %edi
>> ; X86-BMI1BMI2-NEXT: .LBB36_2:
>> -; X86-BMI1BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI1BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1BMI2-NEXT: movb $64, %cl
>> +; X86-BMI1BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1BMI2-NEXT: movl $-1, %ebx
>> ; X86-BMI1BMI2-NEXT: shrxl %ecx, %ebx, %ebp
>> ; X86-BMI1BMI2-NEXT: shrdl %cl, %ebx, %ebx
>> @@ -4814,7 +4814,7 @@ define i64 @bextr64_c4_commutative(i64 %
>> ; X64-NOBMI-NEXT: movq %rdi, %r14
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-NOBMI-NEXT: shrq %cl, %r14
>> -; X64-NOBMI-NEXT: negl %edx
>> +; X64-NOBMI-NEXT: negb %dl
>> ; X64-NOBMI-NEXT: movq $-1, %rbx
>> ; X64-NOBMI-NEXT: movl %edx, %ecx
>> ; X64-NOBMI-NEXT: shrq %cl, %rbx
>> @@ -4836,7 +4836,7 @@ define i64 @bextr64_c4_commutative(i64 %
>> ; X64-BMI1NOTBM-NEXT: movq %rdi, %r14
>> ; X64-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-BMI1NOTBM-NEXT: shrq %cl, %r14
>> -; X64-BMI1NOTBM-NEXT: negl %edx
>> +; X64-BMI1NOTBM-NEXT: negb %dl
>> ; X64-BMI1NOTBM-NEXT: movq $-1, %rbx
>> ; X64-BMI1NOTBM-NEXT: movl %edx, %ecx
>> ; X64-BMI1NOTBM-NEXT: shrq %cl, %rbx
>> @@ -4857,7 +4857,7 @@ define i64 @bextr64_c4_commutative(i64 %
>> ; X64-BMI1BMI2-NEXT: movq %rdx, %rbx
>> ; X64-BMI1BMI2-NEXT: shrxq %rsi, %rdi, %r14
>> ; X64-BMI1BMI2-NEXT: movl %ebx, %eax
>> -; X64-BMI1BMI2-NEXT: negl %eax
>> +; X64-BMI1BMI2-NEXT: negb %al
>> ; X64-BMI1BMI2-NEXT: movq $-1, %rcx
>> ; X64-BMI1BMI2-NEXT: shrxq %rax, %rcx, %rdi
>> ; X64-BMI1BMI2-NEXT: callq use64
>> @@ -4894,8 +4894,8 @@ define i64 @bextr64_c5_skipextrauses(i64
>> ; X86-NOBMI-NEXT: movl %edi, %esi
>> ; X86-NOBMI-NEXT: xorl %edi, %edi
>> ; X86-NOBMI-NEXT: .LBB37_2:
>> -; X86-NOBMI-NEXT: movl $64, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: movb $64, %cl
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl $-1, %ebx
>> ; X86-NOBMI-NEXT: movl $-1, %ebp
>> ; X86-NOBMI-NEXT: shrl %cl, %ebp
>> @@ -4946,8 +4946,8 @@ define i64 @bextr64_c5_skipextrauses(i64
>> ; X86-BMI1NOTBM-NEXT: movl %edi, %esi
>> ; X86-BMI1NOTBM-NEXT: xorl %edi, %edi
>> ; X86-BMI1NOTBM-NEXT: .LBB37_2:
>> -; X86-BMI1NOTBM-NEXT: movl $64, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: movb $64, %cl
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %ebx
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %ebp
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %ebp
>> @@ -4997,8 +4997,8 @@ define i64 @bextr64_c5_skipextrauses(i64
>> ; X86-BMI1BMI2-NEXT: movl %edi, %esi
>> ; X86-BMI1BMI2-NEXT: xorl %edi, %edi
>> ; X86-BMI1BMI2-NEXT: .LBB37_2:
>> -; X86-BMI1BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI1BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1BMI2-NEXT: movb $64, %cl
>> +; X86-BMI1BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1BMI2-NEXT: movl $-1, %ebp
>> ; X86-BMI1BMI2-NEXT: shrxl %ecx, %ebp, %ebx
>> ; X86-BMI1BMI2-NEXT: shrdl %cl, %ebp, %ebp
>> @@ -5038,7 +5038,7 @@ define i64 @bextr64_c5_skipextrauses(i64
>> ; X64-NOBMI-NEXT: movq %rdi, %r15
>> ; X64-NOBMI-NEXT: movl %r14d, %ecx
>> ; X64-NOBMI-NEXT: shrq %cl, %r15
>> -; X64-NOBMI-NEXT: negl %edx
>> +; X64-NOBMI-NEXT: negb %dl
>> ; X64-NOBMI-NEXT: movq $-1, %rbx
>> ; X64-NOBMI-NEXT: movl %edx, %ecx
>> ; X64-NOBMI-NEXT: shrq %cl, %rbx
>> @@ -5062,7 +5062,7 @@ define i64 @bextr64_c5_skipextrauses(i64
>> ; X64-BMI1NOTBM-NEXT: movq %rdi, %r15
>> ; X64-BMI1NOTBM-NEXT: movl %r14d, %ecx
>> ; X64-BMI1NOTBM-NEXT: shrq %cl, %r15
>> -; X64-BMI1NOTBM-NEXT: negl %edx
>> +; X64-BMI1NOTBM-NEXT: negb %dl
>> ; X64-BMI1NOTBM-NEXT: movq $-1, %rbx
>> ; X64-BMI1NOTBM-NEXT: movl %edx, %ecx
>> ; X64-BMI1NOTBM-NEXT: shrq %cl, %rbx
>> @@ -5086,7 +5086,7 @@ define i64 @bextr64_c5_skipextrauses(i64
>> ; X64-BMI1BMI2-NEXT: movq %rsi, %r14
>> ; X64-BMI1BMI2-NEXT: shrxq %rsi, %rdi, %r15
>> ; X64-BMI1BMI2-NEXT: movl %ebx, %eax
>> -; X64-BMI1BMI2-NEXT: negl %eax
>> +; X64-BMI1BMI2-NEXT: negb %al
>> ; X64-BMI1BMI2-NEXT: movq $-1, %rcx
>> ; X64-BMI1BMI2-NEXT: shrxq %rax, %rcx, %rdi
>> ; X64-BMI1BMI2-NEXT: callq use64
>> @@ -5118,7 +5118,7 @@ define i32 @bextr32_d0(i32 %val, i32 %nu
>> ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-NOBMI-NEXT: shrl %cl, %eax
>> ; X86-NOBMI-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: shll %cl, %eax
>> ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI-NEXT: shrl %cl, %eax
>> @@ -5126,16 +5126,16 @@ define i32 @bextr32_d0(i32 %val, i32 %nu
>> ;
>> ; X86-BMI1NOTBM-LABEL: bextr32_d0:
>> ; X86-BMI1NOTBM: # %bb.0:
>> -; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %eax
>> -; X86-BMI1NOTBM-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: movb {{[0-9]+}}(%esp), %al
>> ; X86-BMI1NOTBM-NEXT: shll $8, %eax
>> -; X86-BMI1NOTBM-NEXT: orl %ecx, %eax
>> -; X86-BMI1NOTBM-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
>> +; X86-BMI1NOTBM-NEXT: movzbl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: orl %eax, %ecx
>> +; X86-BMI1NOTBM-NEXT: bextrl %ecx, {{[0-9]+}}(%esp), %eax
>> ; X86-BMI1NOTBM-NEXT: retl
>> ;
>> ; X86-BMI1BMI2-LABEL: bextr32_d0:
>> ; X86-BMI1BMI2: # %bb.0:
>> -; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> +; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
>> ; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1BMI2-NEXT: shrxl %ecx, {{[0-9]+}}(%esp), %ecx
>> ; X86-BMI1BMI2-NEXT: bzhil %eax, %ecx, %eax
>> @@ -5147,7 +5147,7 @@ define i32 @bextr32_d0(i32 %val, i32 %nu
>> ; X64-NOBMI-NEXT: movl %edi, %eax
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %eax
>> -; X64-NOBMI-NEXT: negl %edx
>> +; X64-NOBMI-NEXT: negb %dl
>> ; X64-NOBMI-NEXT: movl %edx, %ecx
>> ; X64-NOBMI-NEXT: shll %cl, %eax
>> ; X64-NOBMI-NEXT: shrl %cl, %eax
>> @@ -5245,7 +5245,7 @@ define i32 @bextr32_d2_load(i32* %w, i32
>> ; X86-NOBMI-NEXT: movl (%eax), %eax
>> ; X86-NOBMI-NEXT: shrl %cl, %eax
>> ; X86-NOBMI-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: shll %cl, %eax
>> ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI-NEXT: shrl %cl, %eax
>> @@ -5254,16 +5254,16 @@ define i32 @bextr32_d2_load(i32* %w, i32
>> ; X86-BMI1NOTBM-LABEL: bextr32_d2_load:
>> ; X86-BMI1NOTBM: # %bb.0:
>> ; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %eax
>> -; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %ecx
>> -; X86-BMI1NOTBM-NEXT: movzbl {{[0-9]+}}(%esp), %edx
>> +; X86-BMI1NOTBM-NEXT: movb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: shll $8, %ecx
>> -; X86-BMI1NOTBM-NEXT: orl %edx, %ecx
>> -; X86-BMI1NOTBM-NEXT: bextrl %ecx, (%eax), %eax
>> +; X86-BMI1NOTBM-NEXT: movzbl {{[0-9]+}}(%esp), %edx
>> +; X86-BMI1NOTBM-NEXT: orl %ecx, %edx
>> +; X86-BMI1NOTBM-NEXT: bextrl %edx, (%eax), %eax
>> ; X86-BMI1NOTBM-NEXT: retl
>> ;
>> ; X86-BMI1BMI2-LABEL: bextr32_d2_load:
>> ; X86-BMI1BMI2: # %bb.0:
>> -; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> +; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
>> ; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
>> ; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %dl
>> ; X86-BMI1BMI2-NEXT: shrxl %edx, (%ecx), %ecx
>> @@ -5276,7 +5276,7 @@ define i32 @bextr32_d2_load(i32* %w, i32
>> ; X64-NOBMI-NEXT: movl (%rdi), %eax
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %eax
>> -; X64-NOBMI-NEXT: negl %edx
>> +; X64-NOBMI-NEXT: negb %dl
>> ; X64-NOBMI-NEXT: movl %edx, %ecx
>> ; X64-NOBMI-NEXT: shll %cl, %eax
>> ; X64-NOBMI-NEXT: shrl %cl, %eax
>> @@ -5381,7 +5381,7 @@ define i32 @bextr32_d5_skipextrauses(i32
>> ; X86-NOBMI-NEXT: movl %eax, %ecx
>> ; X86-NOBMI-NEXT: shrl %cl, %esi
>> ; X86-NOBMI-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: shll %cl, %esi
>> ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI-NEXT: shrl %cl, %esi
>> @@ -5396,7 +5396,7 @@ define i32 @bextr32_d5_skipextrauses(i32
>> ; X86-BMI1NOTBM: # %bb.0:
>> ; X86-BMI1NOTBM-NEXT: pushl %esi
>> ; X86-BMI1NOTBM-NEXT: subl $8, %esp
>> -; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: movb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-BMI1NOTBM-NEXT: shll $8, %ecx
>> ; X86-BMI1NOTBM-NEXT: movzbl %al, %edx
>> @@ -5413,7 +5413,7 @@ define i32 @bextr32_d5_skipextrauses(i32
>> ; X86-BMI1BMI2: # %bb.0:
>> ; X86-BMI1BMI2-NEXT: pushl %esi
>> ; X86-BMI1BMI2-NEXT: subl $8, %esp
>> -; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> +; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
>> ; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
>> ; X86-BMI1BMI2-NEXT: shrxl %ecx, {{[0-9]+}}(%esp), %edx
>> ; X86-BMI1BMI2-NEXT: bzhil %eax, %edx, %esi
>> @@ -5430,7 +5430,7 @@ define i32 @bextr32_d5_skipextrauses(i32
>> ; X64-NOBMI-NEXT: movl %edi, %ebx
>> ; X64-NOBMI-NEXT: movl %esi, %ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %ebx
>> -; X64-NOBMI-NEXT: negl %edx
>> +; X64-NOBMI-NEXT: negb %dl
>> ; X64-NOBMI-NEXT: movl %edx, %ecx
>> ; X64-NOBMI-NEXT: shll %cl, %ebx
>> ; X64-NOBMI-NEXT: shrl %cl, %ebx
>> @@ -5492,8 +5492,8 @@ define i64 @bextr64_d0(i64 %val, i64 %nu
>> ; X86-NOBMI-NEXT: movl %eax, %edi
>> ; X86-NOBMI-NEXT: xorl %eax, %eax
>> ; X86-NOBMI-NEXT: .LBB43_2:
>> -; X86-NOBMI-NEXT: movl $64, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: movb $64, %cl
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: shldl %cl, %edi, %eax
>> ; X86-NOBMI-NEXT: shll %cl, %edi
>> ; X86-NOBMI-NEXT: testb $32, %cl
>> @@ -5540,8 +5540,8 @@ define i64 @bextr64_d0(i64 %val, i64 %nu
>> ; X86-BMI1NOTBM-NEXT: movl %eax, %edi
>> ; X86-BMI1NOTBM-NEXT: xorl %eax, %eax
>> ; X86-BMI1NOTBM-NEXT: .LBB43_2:
>> -; X86-BMI1NOTBM-NEXT: movl $64, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: movb $64, %cl
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: shldl %cl, %edi, %eax
>> ; X86-BMI1NOTBM-NEXT: shll %cl, %edi
>> ; X86-BMI1NOTBM-NEXT: testb $32, %cl
>> @@ -5586,8 +5586,8 @@ define i64 @bextr64_d0(i64 %val, i64 %nu
>> ; X86-BMI1BMI2-NEXT: movl %esi, %eax
>> ; X86-BMI1BMI2-NEXT: xorl %esi, %esi
>> ; X86-BMI1BMI2-NEXT: .LBB43_2:
>> -; X86-BMI1BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI1BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1BMI2-NEXT: movb $64, %cl
>> +; X86-BMI1BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1BMI2-NEXT: shldl %cl, %eax, %esi
>> ; X86-BMI1BMI2-NEXT: shlxl %ecx, %eax, %edi
>> ; X86-BMI1BMI2-NEXT: testb $32, %cl
>> @@ -5617,7 +5617,7 @@ define i64 @bextr64_d0(i64 %val, i64 %nu
>> ; X64-NOBMI-NEXT: movq %rdi, %rax
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-NOBMI-NEXT: shrq %cl, %rax
>> -; X64-NOBMI-NEXT: negl %edx
>> +; X64-NOBMI-NEXT: negb %dl
>> ; X64-NOBMI-NEXT: movl %edx, %ecx
>> ; X64-NOBMI-NEXT: shlq %cl, %rax
>> ; X64-NOBMI-NEXT: shrq %cl, %rax
>> @@ -5838,8 +5838,8 @@ define i64 @bextr64_d2_load(i64* %w, i64
>> ; X86-NOBMI-NEXT: movl %eax, %edi
>> ; X86-NOBMI-NEXT: xorl %eax, %eax
>> ; X86-NOBMI-NEXT: .LBB45_2:
>> -; X86-NOBMI-NEXT: movl $64, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: movb $64, %cl
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: shldl %cl, %edi, %eax
>> ; X86-NOBMI-NEXT: shll %cl, %edi
>> ; X86-NOBMI-NEXT: testb $32, %cl
>> @@ -5887,8 +5887,8 @@ define i64 @bextr64_d2_load(i64* %w, i64
>> ; X86-BMI1NOTBM-NEXT: movl %eax, %edi
>> ; X86-BMI1NOTBM-NEXT: xorl %eax, %eax
>> ; X86-BMI1NOTBM-NEXT: .LBB45_2:
>> -; X86-BMI1NOTBM-NEXT: movl $64, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: movb $64, %cl
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: shldl %cl, %edi, %eax
>> ; X86-BMI1NOTBM-NEXT: shll %cl, %edi
>> ; X86-BMI1NOTBM-NEXT: testb $32, %cl
>> @@ -5934,8 +5934,8 @@ define i64 @bextr64_d2_load(i64* %w, i64
>> ; X86-BMI1BMI2-NEXT: movl %esi, %eax
>> ; X86-BMI1BMI2-NEXT: xorl %esi, %esi
>> ; X86-BMI1BMI2-NEXT: .LBB45_2:
>> -; X86-BMI1BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI1BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1BMI2-NEXT: movb $64, %cl
>> +; X86-BMI1BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1BMI2-NEXT: shldl %cl, %eax, %esi
>> ; X86-BMI1BMI2-NEXT: shlxl %ecx, %eax, %edi
>> ; X86-BMI1BMI2-NEXT: testb $32, %cl
>> @@ -5965,7 +5965,7 @@ define i64 @bextr64_d2_load(i64* %w, i64
>> ; X64-NOBMI-NEXT: movq (%rdi), %rax
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-NOBMI-NEXT: shrq %cl, %rax
>> -; X64-NOBMI-NEXT: negl %edx
>> +; X64-NOBMI-NEXT: negb %dl
>> ; X64-NOBMI-NEXT: movl %edx, %ecx
>> ; X64-NOBMI-NEXT: shlq %cl, %rax
>> ; X64-NOBMI-NEXT: shrq %cl, %rax
>> @@ -6193,8 +6193,8 @@ define i64 @bextr64_d5_skipextrauses(i64
>> ; X86-NOBMI-NEXT: movl %esi, %ebx
>> ; X86-NOBMI-NEXT: xorl %esi, %esi
>> ; X86-NOBMI-NEXT: .LBB47_2:
>> -; X86-NOBMI-NEXT: movl $64, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: movb $64, %cl
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: shldl %cl, %ebx, %esi
>> ; X86-NOBMI-NEXT: shll %cl, %ebx
>> ; X86-NOBMI-NEXT: testb $32, %cl
>> @@ -6254,8 +6254,8 @@ define i64 @bextr64_d5_skipextrauses(i64
>> ; X86-BMI1NOTBM-NEXT: movl %esi, %ebx
>> ; X86-BMI1NOTBM-NEXT: xorl %esi, %esi
>> ; X86-BMI1NOTBM-NEXT: .LBB47_2:
>> -; X86-BMI1NOTBM-NEXT: movl $64, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: movb $64, %cl
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: shldl %cl, %ebx, %esi
>> ; X86-BMI1NOTBM-NEXT: shll %cl, %ebx
>> ; X86-BMI1NOTBM-NEXT: testb $32, %cl
>> @@ -6312,8 +6312,8 @@ define i64 @bextr64_d5_skipextrauses(i64
>> ; X86-BMI1BMI2-NEXT: movl %edx, %edi
>> ; X86-BMI1BMI2-NEXT: xorl %edx, %edx
>> ; X86-BMI1BMI2-NEXT: .LBB47_2:
>> -; X86-BMI1BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI1BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1BMI2-NEXT: movb $64, %cl
>> +; X86-BMI1BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1BMI2-NEXT: shldl %cl, %edi, %edx
>> ; X86-BMI1BMI2-NEXT: shlxl %ecx, %edi, %ebx
>> ; X86-BMI1BMI2-NEXT: testb $32, %cl
>> @@ -6352,7 +6352,7 @@ define i64 @bextr64_d5_skipextrauses(i64
>> ; X64-NOBMI-NEXT: movq %rdi, %rbx
>> ; X64-NOBMI-NEXT: movl %esi, %ecx
>> ; X64-NOBMI-NEXT: shrq %cl, %rbx
>> -; X64-NOBMI-NEXT: negl %edx
>> +; X64-NOBMI-NEXT: negb %dl
>> ; X64-NOBMI-NEXT: movl %edx, %ecx
>> ; X64-NOBMI-NEXT: shlq %cl, %rbx
>> ; X64-NOBMI-NEXT: shrq %cl, %rbx
>>
>> Modified: llvm/trunk/test/CodeGen/X86/extract-lowbits.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/extract-lowbits.ll?rev=347917&r1=347916&r2=347917&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/CodeGen/X86/extract-lowbits.ll (original)
>> +++ llvm/trunk/test/CodeGen/X86/extract-lowbits.ll Thu Nov 29 12:58:26
>> 2018
>> @@ -1436,7 +1436,7 @@ define i32 @bzhi32_c0(i32 %val, i32 %num
>> ; X86-NOBMI-NEXT: pushl %esi
>> ; X86-NOBMI-NEXT: subl $8, %esp
>> ; X86-NOBMI-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl $-1, %esi
>> ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI-NEXT: shrl %cl, %esi
>> @@ -1453,7 +1453,7 @@ define i32 @bzhi32_c0(i32 %val, i32 %num
>> ; X86-BMI1NOTBM-NEXT: pushl %esi
>> ; X86-BMI1NOTBM-NEXT: subl $8, %esp
>> ; X86-BMI1NOTBM-NEXT: xorl %ecx, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %esi
>> ; X86-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %esi
>> @@ -1467,18 +1467,18 @@ define i32 @bzhi32_c0(i32 %val, i32 %num
>> ;
>> ; X86-BMI1BMI2-LABEL: bzhi32_c0:
>> ; X86-BMI1BMI2: # %bb.0:
>> -; X86-BMI1BMI2-NEXT: pushl %esi
>> +; X86-BMI1BMI2-NEXT: pushl %ebx
>> ; X86-BMI1BMI2-NEXT: subl $8, %esp
>> -; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
>> -; X86-BMI1BMI2-NEXT: movl %esi, %eax
>> -; X86-BMI1BMI2-NEXT: negl %eax
>> +; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl
>> +; X86-BMI1BMI2-NEXT: movl %ebx, %eax
>> +; X86-BMI1BMI2-NEXT: negb %al
>> ; X86-BMI1BMI2-NEXT: movl $-1, %ecx
>> ; X86-BMI1BMI2-NEXT: shrxl %eax, %ecx, %eax
>> ; X86-BMI1BMI2-NEXT: movl %eax, (%esp)
>> ; X86-BMI1BMI2-NEXT: calll use32
>> -; X86-BMI1BMI2-NEXT: bzhil %esi, {{[0-9]+}}(%esp), %eax
>> +; X86-BMI1BMI2-NEXT: bzhil %ebx, {{[0-9]+}}(%esp), %eax
>> ; X86-BMI1BMI2-NEXT: addl $8, %esp
>> -; X86-BMI1BMI2-NEXT: popl %esi
>> +; X86-BMI1BMI2-NEXT: popl %ebx
>> ; X86-BMI1BMI2-NEXT: retl
>> ;
>> ; X64-NOBMI-LABEL: bzhi32_c0:
>> @@ -1488,7 +1488,7 @@ define i32 @bzhi32_c0(i32 %val, i32 %num
>> ; X64-NOBMI-NEXT: pushq %rax
>> ; X64-NOBMI-NEXT: movl %esi, %ecx
>> ; X64-NOBMI-NEXT: movl %edi, %ebx
>> -; X64-NOBMI-NEXT: negl %ecx
>> +; X64-NOBMI-NEXT: negb %cl
>> ; X64-NOBMI-NEXT: movl $-1, %ebp
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %ebp
>> @@ -1508,7 +1508,7 @@ define i32 @bzhi32_c0(i32 %val, i32 %num
>> ; X64-BMI1NOTBM-NEXT: pushq %rax
>> ; X64-BMI1NOTBM-NEXT: movl %esi, %ecx
>> ; X64-BMI1NOTBM-NEXT: movl %edi, %ebx
>> -; X64-BMI1NOTBM-NEXT: negl %ecx
>> +; X64-BMI1NOTBM-NEXT: negb %cl
>> ; X64-BMI1NOTBM-NEXT: movl $-1, %ebp
>> ; X64-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-BMI1NOTBM-NEXT: shrl %cl, %ebp
>> @@ -1528,8 +1528,8 @@ define i32 @bzhi32_c0(i32 %val, i32 %num
>> ; X64-BMI1BMI2-NEXT: pushq %rax
>> ; X64-BMI1BMI2-NEXT: movl %esi, %ebx
>> ; X64-BMI1BMI2-NEXT: movl %edi, %ebp
>> -; X64-BMI1BMI2-NEXT: movl %esi, %eax
>> -; X64-BMI1BMI2-NEXT: negl %eax
>> +; X64-BMI1BMI2-NEXT: movl %ebx, %eax
>> +; X64-BMI1BMI2-NEXT: negb %al
>> ; X64-BMI1BMI2-NEXT: movl $-1, %ecx
>> ; X64-BMI1BMI2-NEXT: shrxl %eax, %ecx, %edi
>> ; X64-BMI1BMI2-NEXT: callq use32
>> @@ -1668,7 +1668,7 @@ define i32 @bzhi32_c2_load(i32* %w, i32
>> ; X86-NOBMI-NEXT: subl $8, %esp
>> ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-NOBMI-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl $-1, %edx
>> ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI-NEXT: shrl %cl, %edx
>> @@ -1687,7 +1687,7 @@ define i32 @bzhi32_c2_load(i32* %w, i32
>> ; X86-BMI1NOTBM-NEXT: subl $8, %esp
>> ; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-BMI1NOTBM-NEXT: xorl %ecx, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %edx
>> ; X86-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %edx
>> @@ -1705,9 +1705,10 @@ define i32 @bzhi32_c2_load(i32* %w, i32
>> ; X86-BMI1BMI2-NEXT: pushl %esi
>> ; X86-BMI1BMI2-NEXT: subl $8, %esp
>> ; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> -; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1BMI2-NEXT: bzhil %ecx, (%eax), %esi
>> -; X86-BMI1BMI2-NEXT: negl %ecx
>> +; X86-BMI1BMI2-NEXT: # kill: def $cl killed $cl killed $ecx def $ecx
>> +; X86-BMI1BMI2-NEXT: negb %cl
>> ; X86-BMI1BMI2-NEXT: movl $-1, %eax
>> ; X86-BMI1BMI2-NEXT: shrxl %ecx, %eax, %eax
>> ; X86-BMI1BMI2-NEXT: movl %eax, (%esp)
>> @@ -1721,7 +1722,7 @@ define i32 @bzhi32_c2_load(i32* %w, i32
>> ; X64-NOBMI: # %bb.0:
>> ; X64-NOBMI-NEXT: pushq %rbx
>> ; X64-NOBMI-NEXT: movl %esi, %ecx
>> -; X64-NOBMI-NEXT: negl %ecx
>> +; X64-NOBMI-NEXT: negb %cl
>> ; X64-NOBMI-NEXT: movl $-1, %eax
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %eax
>> @@ -1737,7 +1738,7 @@ define i32 @bzhi32_c2_load(i32* %w, i32
>> ; X64-BMI1NOTBM: # %bb.0:
>> ; X64-BMI1NOTBM-NEXT: pushq %rbx
>> ; X64-BMI1NOTBM-NEXT: movl %esi, %ecx
>> -; X64-BMI1NOTBM-NEXT: negl %ecx
>> +; X64-BMI1NOTBM-NEXT: negb %cl
>> ; X64-BMI1NOTBM-NEXT: movl $-1, %eax
>> ; X64-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-BMI1NOTBM-NEXT: shrl %cl, %eax
>> @@ -1753,7 +1754,8 @@ define i32 @bzhi32_c2_load(i32* %w, i32
>> ; X64-BMI1BMI2: # %bb.0:
>> ; X64-BMI1BMI2-NEXT: pushq %rbx
>> ; X64-BMI1BMI2-NEXT: bzhil %esi, (%rdi), %ebx
>> -; X64-BMI1BMI2-NEXT: negl %esi
>> +; X64-BMI1BMI2-NEXT: # kill: def $sil killed $sil killed $esi def $esi
>> +; X64-BMI1BMI2-NEXT: negb %sil
>> ; X64-BMI1BMI2-NEXT: movl $-1, %eax
>> ; X64-BMI1BMI2-NEXT: shrxl %esi, %eax, %edi
>> ; X64-BMI1BMI2-NEXT: callq use32
>> @@ -1884,7 +1886,7 @@ define i32 @bzhi32_c4_commutative(i32 %v
>> ; X86-NOBMI-NEXT: pushl %esi
>> ; X86-NOBMI-NEXT: subl $8, %esp
>> ; X86-NOBMI-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl $-1, %esi
>> ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI-NEXT: shrl %cl, %esi
>> @@ -1901,7 +1903,7 @@ define i32 @bzhi32_c4_commutative(i32 %v
>> ; X86-BMI1NOTBM-NEXT: pushl %esi
>> ; X86-BMI1NOTBM-NEXT: subl $8, %esp
>> ; X86-BMI1NOTBM-NEXT: xorl %ecx, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %esi
>> ; X86-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %esi
>> @@ -1915,18 +1917,18 @@ define i32 @bzhi32_c4_commutative(i32 %v
>> ;
>> ; X86-BMI1BMI2-LABEL: bzhi32_c4_commutative:
>> ; X86-BMI1BMI2: # %bb.0:
>> -; X86-BMI1BMI2-NEXT: pushl %esi
>> +; X86-BMI1BMI2-NEXT: pushl %ebx
>> ; X86-BMI1BMI2-NEXT: subl $8, %esp
>> -; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
>> -; X86-BMI1BMI2-NEXT: movl %esi, %eax
>> -; X86-BMI1BMI2-NEXT: negl %eax
>> +; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %bl
>> +; X86-BMI1BMI2-NEXT: movl %ebx, %eax
>> +; X86-BMI1BMI2-NEXT: negb %al
>> ; X86-BMI1BMI2-NEXT: movl $-1, %ecx
>> ; X86-BMI1BMI2-NEXT: shrxl %eax, %ecx, %eax
>> ; X86-BMI1BMI2-NEXT: movl %eax, (%esp)
>> ; X86-BMI1BMI2-NEXT: calll use32
>> -; X86-BMI1BMI2-NEXT: bzhil %esi, {{[0-9]+}}(%esp), %eax
>> +; X86-BMI1BMI2-NEXT: bzhil %ebx, {{[0-9]+}}(%esp), %eax
>> ; X86-BMI1BMI2-NEXT: addl $8, %esp
>> -; X86-BMI1BMI2-NEXT: popl %esi
>> +; X86-BMI1BMI2-NEXT: popl %ebx
>> ; X86-BMI1BMI2-NEXT: retl
>> ;
>> ; X64-NOBMI-LABEL: bzhi32_c4_commutative:
>> @@ -1936,7 +1938,7 @@ define i32 @bzhi32_c4_commutative(i32 %v
>> ; X64-NOBMI-NEXT: pushq %rax
>> ; X64-NOBMI-NEXT: movl %esi, %ecx
>> ; X64-NOBMI-NEXT: movl %edi, %ebx
>> -; X64-NOBMI-NEXT: negl %ecx
>> +; X64-NOBMI-NEXT: negb %cl
>> ; X64-NOBMI-NEXT: movl $-1, %ebp
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %ebp
>> @@ -1956,7 +1958,7 @@ define i32 @bzhi32_c4_commutative(i32 %v
>> ; X64-BMI1NOTBM-NEXT: pushq %rax
>> ; X64-BMI1NOTBM-NEXT: movl %esi, %ecx
>> ; X64-BMI1NOTBM-NEXT: movl %edi, %ebx
>> -; X64-BMI1NOTBM-NEXT: negl %ecx
>> +; X64-BMI1NOTBM-NEXT: negb %cl
>> ; X64-BMI1NOTBM-NEXT: movl $-1, %ebp
>> ; X64-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-BMI1NOTBM-NEXT: shrl %cl, %ebp
>> @@ -1976,8 +1978,8 @@ define i32 @bzhi32_c4_commutative(i32 %v
>> ; X64-BMI1BMI2-NEXT: pushq %rax
>> ; X64-BMI1BMI2-NEXT: movl %esi, %ebx
>> ; X64-BMI1BMI2-NEXT: movl %edi, %ebp
>> -; X64-BMI1BMI2-NEXT: movl %esi, %eax
>> -; X64-BMI1BMI2-NEXT: negl %eax
>> +; X64-BMI1BMI2-NEXT: movl %ebx, %eax
>> +; X64-BMI1BMI2-NEXT: negb %al
>> ; X64-BMI1BMI2-NEXT: movl $-1, %ecx
>> ; X64-BMI1BMI2-NEXT: shrxl %eax, %ecx, %edi
>> ; X64-BMI1BMI2-NEXT: callq use32
>> @@ -2003,8 +2005,8 @@ define i64 @bzhi64_c0(i64 %val, i64 %num
>> ; X86-NOBMI-NEXT: pushl %edi
>> ; X86-NOBMI-NEXT: pushl %esi
>> ; X86-NOBMI-NEXT: pushl %eax
>> -; X86-NOBMI-NEXT: movl $64, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: movb $64, %cl
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl $-1, %esi
>> ; X86-NOBMI-NEXT: movl $-1, %edi
>> ; X86-NOBMI-NEXT: shrl %cl, %edi
>> @@ -2034,8 +2036,8 @@ define i64 @bzhi64_c0(i64 %val, i64 %num
>> ; X86-BMI1NOTBM-NEXT: pushl %edi
>> ; X86-BMI1NOTBM-NEXT: pushl %esi
>> ; X86-BMI1NOTBM-NEXT: pushl %eax
>> -; X86-BMI1NOTBM-NEXT: movl $64, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: movb $64, %cl
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %esi
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %edi
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %edi
>> @@ -2065,8 +2067,8 @@ define i64 @bzhi64_c0(i64 %val, i64 %num
>> ; X86-BMI1BMI2-NEXT: pushl %edi
>> ; X86-BMI1BMI2-NEXT: pushl %esi
>> ; X86-BMI1BMI2-NEXT: pushl %eax
>> -; X86-BMI1BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI1BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1BMI2-NEXT: movb $64, %cl
>> +; X86-BMI1BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1BMI2-NEXT: movl $-1, %esi
>> ; X86-BMI1BMI2-NEXT: shrxl %ecx, %esi, %edi
>> ; X86-BMI1BMI2-NEXT: shrdl %cl, %esi, %esi
>> @@ -2097,7 +2099,7 @@ define i64 @bzhi64_c0(i64 %val, i64 %num
>> ; X64-NOBMI-NEXT: pushq %rax
>> ; X64-NOBMI-NEXT: movq %rsi, %rcx
>> ; X64-NOBMI-NEXT: movq %rdi, %r14
>> -; X64-NOBMI-NEXT: negl %ecx
>> +; X64-NOBMI-NEXT: negb %cl
>> ; X64-NOBMI-NEXT: movq $-1, %rbx
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-NOBMI-NEXT: shrq %cl, %rbx
>> @@ -2117,7 +2119,7 @@ define i64 @bzhi64_c0(i64 %val, i64 %num
>> ; X64-BMI1NOTBM-NEXT: pushq %rax
>> ; X64-BMI1NOTBM-NEXT: movq %rsi, %rcx
>> ; X64-BMI1NOTBM-NEXT: movq %rdi, %r14
>> -; X64-BMI1NOTBM-NEXT: negl %ecx
>> +; X64-BMI1NOTBM-NEXT: negb %cl
>> ; X64-BMI1NOTBM-NEXT: movq $-1, %rbx
>> ; X64-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-BMI1NOTBM-NEXT: shrq %cl, %rbx
>> @@ -2138,7 +2140,7 @@ define i64 @bzhi64_c0(i64 %val, i64 %num
>> ; X64-BMI1BMI2-NEXT: movq %rsi, %rbx
>> ; X64-BMI1BMI2-NEXT: movq %rdi, %r14
>> ; X64-BMI1BMI2-NEXT: movl %ebx, %eax
>> -; X64-BMI1BMI2-NEXT: negl %eax
>> +; X64-BMI1BMI2-NEXT: negb %al
>> ; X64-BMI1BMI2-NEXT: movq $-1, %rcx
>> ; X64-BMI1BMI2-NEXT: shrxq %rax, %rcx, %rdi
>> ; X64-BMI1BMI2-NEXT: callq use64
>>
> @@ -2318,26 +2320,26 @@ define i64 @bzhi64_c2_load(i64* %w, i64
>> ; X86-NOBMI-NEXT: pushl %ebx
>> ; X86-NOBMI-NEXT: pushl %edi
>> ; X86-NOBMI-NEXT: pushl %esi
>> -; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
>> -; X86-NOBMI-NEXT: movl $64, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> -; X86-NOBMI-NEXT: movl $-1, %edx
>> +; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
>> +; X86-NOBMI-NEXT: movb $64, %cl
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> +; X86-NOBMI-NEXT: movl $-1, %eax
>> ; X86-NOBMI-NEXT: movl $-1, %ebx
>> ; X86-NOBMI-NEXT: shrl %cl, %ebx
>> -; X86-NOBMI-NEXT: shrdl %cl, %edx, %edx
>> +; X86-NOBMI-NEXT: shrdl %cl, %eax, %eax
>> ; X86-NOBMI-NEXT: testb $32, %cl
>> ; X86-NOBMI-NEXT: je .LBB27_2
>> ; X86-NOBMI-NEXT: # %bb.1:
>> -; X86-NOBMI-NEXT: movl %ebx, %edx
>> +; X86-NOBMI-NEXT: movl %ebx, %eax
>> ; X86-NOBMI-NEXT: xorl %ebx, %ebx
>> ; X86-NOBMI-NEXT: .LBB27_2:
>> -; X86-NOBMI-NEXT: movl (%eax), %esi
>> -; X86-NOBMI-NEXT: andl %edx, %esi
>> -; X86-NOBMI-NEXT: movl 4(%eax), %edi
>> +; X86-NOBMI-NEXT: movl (%edx), %esi
>> +; X86-NOBMI-NEXT: andl %eax, %esi
>> +; X86-NOBMI-NEXT: movl 4(%edx), %edi
>> ; X86-NOBMI-NEXT: andl %ebx, %edi
>> ; X86-NOBMI-NEXT: subl $8, %esp
>> ; X86-NOBMI-NEXT: pushl %ebx
>> -; X86-NOBMI-NEXT: pushl %edx
>> +; X86-NOBMI-NEXT: pushl %eax
>> ; X86-NOBMI-NEXT: calll use64
>> ; X86-NOBMI-NEXT: addl $16, %esp
>> ; X86-NOBMI-NEXT: movl %esi, %eax
>> @@ -2352,26 +2354,26 @@ define i64 @bzhi64_c2_load(i64* %w, i64
>> ; X86-BMI1NOTBM-NEXT: pushl %ebx
>> ; X86-BMI1NOTBM-NEXT: pushl %edi
>> ; X86-BMI1NOTBM-NEXT: pushl %esi
>> -; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %eax
>> -; X86-BMI1NOTBM-NEXT: movl $64, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> -; X86-BMI1NOTBM-NEXT: movl $-1, %edx
>> +; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %edx
>> +; X86-BMI1NOTBM-NEXT: movb $64, %cl
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> +; X86-BMI1NOTBM-NEXT: movl $-1, %eax
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %ebx
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %ebx
>> -; X86-BMI1NOTBM-NEXT: shrdl %cl, %edx, %edx
>> +; X86-BMI1NOTBM-NEXT: shrdl %cl, %eax, %eax
>> ; X86-BMI1NOTBM-NEXT: testb $32, %cl
>> ; X86-BMI1NOTBM-NEXT: je .LBB27_2
>> ; X86-BMI1NOTBM-NEXT: # %bb.1:
>> -; X86-BMI1NOTBM-NEXT: movl %ebx, %edx
>> +; X86-BMI1NOTBM-NEXT: movl %ebx, %eax
>> ; X86-BMI1NOTBM-NEXT: xorl %ebx, %ebx
>> ; X86-BMI1NOTBM-NEXT: .LBB27_2:
>> -; X86-BMI1NOTBM-NEXT: movl (%eax), %esi
>> -; X86-BMI1NOTBM-NEXT: andl %edx, %esi
>> -; X86-BMI1NOTBM-NEXT: movl 4(%eax), %edi
>> +; X86-BMI1NOTBM-NEXT: movl (%edx), %esi
>> +; X86-BMI1NOTBM-NEXT: andl %eax, %esi
>> +; X86-BMI1NOTBM-NEXT: movl 4(%edx), %edi
>> ; X86-BMI1NOTBM-NEXT: andl %ebx, %edi
>> ; X86-BMI1NOTBM-NEXT: subl $8, %esp
>> ; X86-BMI1NOTBM-NEXT: pushl %ebx
>> -; X86-BMI1NOTBM-NEXT: pushl %edx
>> +; X86-BMI1NOTBM-NEXT: pushl %eax
>> ; X86-BMI1NOTBM-NEXT: calll use64
>> ; X86-BMI1NOTBM-NEXT: addl $16, %esp
>> ; X86-BMI1NOTBM-NEXT: movl %esi, %eax
>> @@ -2386,25 +2388,25 @@ define i64 @bzhi64_c2_load(i64* %w, i64
>> ; X86-BMI1BMI2-NEXT: pushl %ebx
>> ; X86-BMI1BMI2-NEXT: pushl %edi
>> ; X86-BMI1BMI2-NEXT: pushl %esi
>> -; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> -; X86-BMI1BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI1BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> -; X86-BMI1BMI2-NEXT: movl $-1, %edx
>> -; X86-BMI1BMI2-NEXT: shrxl %ecx, %edx, %ebx
>> -; X86-BMI1BMI2-NEXT: shrdl %cl, %edx, %edx
>> +; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
>> +; X86-BMI1BMI2-NEXT: movb $64, %cl
>> +; X86-BMI1BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> +; X86-BMI1BMI2-NEXT: movl $-1, %eax
>> +; X86-BMI1BMI2-NEXT: shrxl %ecx, %eax, %ebx
>> +; X86-BMI1BMI2-NEXT: shrdl %cl, %eax, %eax
>> ; X86-BMI1BMI2-NEXT: testb $32, %cl
>> ; X86-BMI1BMI2-NEXT: je .LBB27_2
>> ; X86-BMI1BMI2-NEXT: # %bb.1:
>> -; X86-BMI1BMI2-NEXT: movl %ebx, %edx
>> +; X86-BMI1BMI2-NEXT: movl %ebx, %eax
>> ; X86-BMI1BMI2-NEXT: xorl %ebx, %ebx
>> ; X86-BMI1BMI2-NEXT: .LBB27_2:
>> -; X86-BMI1BMI2-NEXT: movl (%eax), %esi
>> -; X86-BMI1BMI2-NEXT: andl %edx, %esi
>> -; X86-BMI1BMI2-NEXT: movl 4(%eax), %edi
>> +; X86-BMI1BMI2-NEXT: movl (%edx), %esi
>> +; X86-BMI1BMI2-NEXT: andl %eax, %esi
>> +; X86-BMI1BMI2-NEXT: movl 4(%edx), %edi
>> ; X86-BMI1BMI2-NEXT: andl %ebx, %edi
>> ; X86-BMI1BMI2-NEXT: subl $8, %esp
>> ; X86-BMI1BMI2-NEXT: pushl %ebx
>> -; X86-BMI1BMI2-NEXT: pushl %edx
>> +; X86-BMI1BMI2-NEXT: pushl %eax
>> ; X86-BMI1BMI2-NEXT: calll use64
>> ; X86-BMI1BMI2-NEXT: addl $16, %esp
>> ; X86-BMI1BMI2-NEXT: movl %esi, %eax
>> @@ -2418,7 +2420,7 @@ define i64 @bzhi64_c2_load(i64* %w, i64
>> ; X64-NOBMI: # %bb.0:
>> ; X64-NOBMI-NEXT: pushq %rbx
>> ; X64-NOBMI-NEXT: movq %rsi, %rcx
>> -; X64-NOBMI-NEXT: negl %ecx
>> +; X64-NOBMI-NEXT: negb %cl
>> ; X64-NOBMI-NEXT: movq $-1, %rax
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-NOBMI-NEXT: shrq %cl, %rax
>> @@ -2434,7 +2436,7 @@ define i64 @bzhi64_c2_load(i64* %w, i64
>> ; X64-BMI1NOTBM: # %bb.0:
>> ; X64-BMI1NOTBM-NEXT: pushq %rbx
>> ; X64-BMI1NOTBM-NEXT: movq %rsi, %rcx
>> -; X64-BMI1NOTBM-NEXT: negl %ecx
>> +; X64-BMI1NOTBM-NEXT: negb %cl
>> ; X64-BMI1NOTBM-NEXT: movq $-1, %rax
>> ; X64-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-BMI1NOTBM-NEXT: shrq %cl, %rax
>> @@ -2450,8 +2452,8 @@ define i64 @bzhi64_c2_load(i64* %w, i64
>> ; X64-BMI1BMI2: # %bb.0:
>> ; X64-BMI1BMI2-NEXT: pushq %rbx
>> ; X64-BMI1BMI2-NEXT: bzhiq %rsi, (%rdi), %rbx
>> -; X64-BMI1BMI2-NEXT: # kill: def $esi killed $esi killed $rsi def $rsi
>> -; X64-BMI1BMI2-NEXT: negl %esi
>> +; X64-BMI1BMI2-NEXT: # kill: def $sil killed $sil killed $rsi def $rsi
>> +; X64-BMI1BMI2-NEXT: negb %sil
>> ; X64-BMI1BMI2-NEXT: movq $-1, %rax
>> ; X64-BMI1BMI2-NEXT: shrxq %rsi, %rax, %rdi
>> ; X64-BMI1BMI2-NEXT: callq use64
>> @@ -2628,8 +2630,8 @@ define i64 @bzhi64_c4_commutative(i64 %v
>> ; X86-NOBMI-NEXT: pushl %edi
>> ; X86-NOBMI-NEXT: pushl %esi
>> ; X86-NOBMI-NEXT: pushl %eax
>> -; X86-NOBMI-NEXT: movl $64, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: movb $64, %cl
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl $-1, %esi
>> ; X86-NOBMI-NEXT: movl $-1, %edi
>> ; X86-NOBMI-NEXT: shrl %cl, %edi
>> @@ -2659,8 +2661,8 @@ define i64 @bzhi64_c4_commutative(i64 %v
>> ; X86-BMI1NOTBM-NEXT: pushl %edi
>> ; X86-BMI1NOTBM-NEXT: pushl %esi
>> ; X86-BMI1NOTBM-NEXT: pushl %eax
>> -; X86-BMI1NOTBM-NEXT: movl $64, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: movb $64, %cl
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %esi
>> ; X86-BMI1NOTBM-NEXT: movl $-1, %edi
>> ; X86-BMI1NOTBM-NEXT: shrl %cl, %edi
>> @@ -2690,8 +2692,8 @@ define i64 @bzhi64_c4_commutative(i64 %v
>> ; X86-BMI1BMI2-NEXT: pushl %edi
>> ; X86-BMI1BMI2-NEXT: pushl %esi
>> ; X86-BMI1BMI2-NEXT: pushl %eax
>> -; X86-BMI1BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI1BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1BMI2-NEXT: movb $64, %cl
>> +; X86-BMI1BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1BMI2-NEXT: movl $-1, %esi
>> ; X86-BMI1BMI2-NEXT: shrxl %ecx, %esi, %edi
>> ; X86-BMI1BMI2-NEXT: shrdl %cl, %esi, %esi
>> @@ -2722,7 +2724,7 @@ define i64 @bzhi64_c4_commutative(i64 %v
>> ; X64-NOBMI-NEXT: pushq %rax
>> ; X64-NOBMI-NEXT: movq %rsi, %rcx
>> ; X64-NOBMI-NEXT: movq %rdi, %r14
>> -; X64-NOBMI-NEXT: negl %ecx
>> +; X64-NOBMI-NEXT: negb %cl
>> ; X64-NOBMI-NEXT: movq $-1, %rbx
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-NOBMI-NEXT: shrq %cl, %rbx
>> @@ -2742,7 +2744,7 @@ define i64 @bzhi64_c4_commutative(i64 %v
>> ; X64-BMI1NOTBM-NEXT: pushq %rax
>> ; X64-BMI1NOTBM-NEXT: movq %rsi, %rcx
>> ; X64-BMI1NOTBM-NEXT: movq %rdi, %r14
>> -; X64-BMI1NOTBM-NEXT: negl %ecx
>> +; X64-BMI1NOTBM-NEXT: negb %cl
>> ; X64-BMI1NOTBM-NEXT: movq $-1, %rbx
>> ; X64-BMI1NOTBM-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-BMI1NOTBM-NEXT: shrq %cl, %rbx
>> @@ -2763,7 +2765,7 @@ define i64 @bzhi64_c4_commutative(i64 %v
>> ; X64-BMI1BMI2-NEXT: movq %rsi, %rbx
>> ; X64-BMI1BMI2-NEXT: movq %rdi, %r14
>> ; X64-BMI1BMI2-NEXT: movl %ebx, %eax
>> -; X64-BMI1BMI2-NEXT: negl %eax
>> +; X64-BMI1BMI2-NEXT: negb %al
>> ; X64-BMI1BMI2-NEXT: movq $-1, %rcx
>> ; X64-BMI1BMI2-NEXT: shrxq %rax, %rcx, %rdi
>> ; X64-BMI1BMI2-NEXT: callq use64
>> @@ -2788,7 +2790,7 @@ define i32 @bzhi32_d0(i32 %val, i32 %num
>> ; X86-NOBMI: # %bb.0:
>> ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-NOBMI-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: shll %cl, %eax
>> ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI-NEXT: shrl %cl, %eax
>> @@ -2796,14 +2798,14 @@ define i32 @bzhi32_d0(i32 %val, i32 %num
>> ;
>> ; X86-BMI1NOTBM-LABEL: bzhi32_d0:
>> ; X86-BMI1NOTBM: # %bb.0:
>> -; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %eax
>> +; X86-BMI1NOTBM-NEXT: movb {{[0-9]+}}(%esp), %al
>> ; X86-BMI1NOTBM-NEXT: shll $8, %eax
>> ; X86-BMI1NOTBM-NEXT: bextrl %eax, {{[0-9]+}}(%esp), %eax
>> ; X86-BMI1NOTBM-NEXT: retl
>> ;
>> ; X86-BMI1BMI2-LABEL: bzhi32_d0:
>> ; X86-BMI1BMI2: # %bb.0:
>> -; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> +; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
>> ; X86-BMI1BMI2-NEXT: bzhil %eax, {{[0-9]+}}(%esp), %eax
>> ; X86-BMI1BMI2-NEXT: retl
>> ;
>> @@ -2811,7 +2813,7 @@ define i32 @bzhi32_d0(i32 %val, i32 %num
>> ; X64-NOBMI: # %bb.0:
>> ; X64-NOBMI-NEXT: movl %esi, %ecx
>> ; X64-NOBMI-NEXT: movl %edi, %eax
>> -; X64-NOBMI-NEXT: negl %ecx
>> +; X64-NOBMI-NEXT: negb %cl
>> ; X64-NOBMI-NEXT: shll %cl, %eax
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %eax
>> @@ -2890,7 +2892,7 @@ define i32 @bzhi32_d2_load(i32* %w, i32
>> ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-NOBMI-NEXT: movl (%eax), %eax
>> ; X86-NOBMI-NEXT: xorl %ecx, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: shll %cl, %eax
>> ; X86-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X86-NOBMI-NEXT: shrl %cl, %eax
>> @@ -2899,7 +2901,7 @@ define i32 @bzhi32_d2_load(i32* %w, i32
>> ; X86-BMI1NOTBM-LABEL: bzhi32_d2_load:
>> ; X86-BMI1NOTBM: # %bb.0:
>> ; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %eax
>> -; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: movb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: shll $8, %ecx
>> ; X86-BMI1NOTBM-NEXT: bextrl %ecx, (%eax), %eax
>> ; X86-BMI1NOTBM-NEXT: retl
>> @@ -2907,15 +2909,15 @@ define i32 @bzhi32_d2_load(i32* %w, i32
>> ; X86-BMI1BMI2-LABEL: bzhi32_d2_load:
>> ; X86-BMI1BMI2: # %bb.0:
>> ; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> -; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
>> -; X86-BMI1BMI2-NEXT: bzhil %eax, (%ecx), %eax
>> +; X86-BMI1BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
>> +; X86-BMI1BMI2-NEXT: bzhil %ecx, (%eax), %eax
>> ; X86-BMI1BMI2-NEXT: retl
>> ;
>> ; X64-NOBMI-LABEL: bzhi32_d2_load:
>> ; X64-NOBMI: # %bb.0:
>> ; X64-NOBMI-NEXT: movl %esi, %ecx
>> ; X64-NOBMI-NEXT: movl (%rdi), %eax
>> -; X64-NOBMI-NEXT: negl %ecx
>> +; X64-NOBMI-NEXT: negb %cl
>> ; X64-NOBMI-NEXT: shll %cl, %eax
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $ecx
>> ; X64-NOBMI-NEXT: shrl %cl, %eax
>> @@ -3003,8 +3005,8 @@ define i64 @bzhi64_d0(i64 %val, i64 %num
>> ; X86-NOBMI-NEXT: pushl %esi
>> ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %edx
>> ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
>> -; X86-NOBMI-NEXT: movl $64, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: movb $64, %cl
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl %edx, %esi
>> ; X86-NOBMI-NEXT: shll %cl, %esi
>> ; X86-NOBMI-NEXT: shldl %cl, %edx, %eax
>> @@ -3042,8 +3044,8 @@ define i64 @bzhi64_d0(i64 %val, i64 %num
>> ; X86-BMI1NOTBM-NEXT: pushl %esi
>> ; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %edx
>> ; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %eax
>> -; X86-BMI1NOTBM-NEXT: movl $64, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: movb $64, %cl
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl %edx, %esi
>> ; X86-BMI1NOTBM-NEXT: shll %cl, %esi
>> ; X86-BMI1NOTBM-NEXT: shldl %cl, %edx, %eax
>> @@ -3080,8 +3082,8 @@ define i64 @bzhi64_d0(i64 %val, i64 %num
>> ; X86-BMI1BMI2-NEXT: pushl %esi
>> ; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %esi
>> -; X86-BMI1BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI1BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1BMI2-NEXT: movb $64, %cl
>> +; X86-BMI1BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1BMI2-NEXT: shldl %cl, %eax, %esi
>> ; X86-BMI1BMI2-NEXT: shlxl %ecx, %eax, %edi
>> ; X86-BMI1BMI2-NEXT: xorl %edx, %edx
>> @@ -3110,7 +3112,7 @@ define i64 @bzhi64_d0(i64 %val, i64 %num
>> ; X64-NOBMI: # %bb.0:
>> ; X64-NOBMI-NEXT: movq %rsi, %rcx
>> ; X64-NOBMI-NEXT: movq %rdi, %rax
>> -; X64-NOBMI-NEXT: negl %ecx
>> +; X64-NOBMI-NEXT: negb %cl
>> ; X64-NOBMI-NEXT: shlq %cl, %rax
>> ; X64-NOBMI-NEXT: # kill: def $cl killed $cl killed $rcx
>> ; X64-NOBMI-NEXT: shrq %cl, %rax
>> @@ -3281,8 +3283,8 @@ define i64 @bzhi64_d2_load(i64* %w, i64
>> ; X86-NOBMI-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-NOBMI-NEXT: movl (%eax), %edx
>> ; X86-NOBMI-NEXT: movl 4(%eax), %eax
>> -; X86-NOBMI-NEXT: movl $64, %ecx
>> -; X86-NOBMI-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-NOBMI-NEXT: movb $64, %cl
>> +; X86-NOBMI-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-NOBMI-NEXT: movl %edx, %esi
>> ; X86-NOBMI-NEXT: shll %cl, %esi
>> ; X86-NOBMI-NEXT: shldl %cl, %edx, %eax
>> @@ -3321,8 +3323,8 @@ define i64 @bzhi64_d2_load(i64* %w, i64
>> ; X86-BMI1NOTBM-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-BMI1NOTBM-NEXT: movl (%eax), %edx
>> ; X86-BMI1NOTBM-NEXT: movl 4(%eax), %eax
>> -; X86-BMI1NOTBM-NEXT: movl $64, %ecx
>> -; X86-BMI1NOTBM-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1NOTBM-NEXT: movb $64, %cl
>> +; X86-BMI1NOTBM-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1NOTBM-NEXT: movl %edx, %esi
>> ; X86-BMI1NOTBM-NEXT: shll %cl, %esi
>> ; X86-BMI1NOTBM-NEXT: shldl %cl, %edx, %eax
>> @@ -3360,8 +3362,8 @@ define i64 @bzhi64_d2_load(i64* %w, i64
>> ; X86-BMI1BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
>> ; X86-BMI1BMI2-NEXT: movl (%eax), %edx
>> ; X86-BMI1BMI2-NEXT: movl 4(%eax), %esi
>> -; X86-BMI1BMI2-NEXT: movl $64, %ecx
>> -; X86-BMI1BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
>> +; X86-BMI1BMI2-NEXT: movb $64, %cl
>> +; X86-BMI1BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
>> ; X86-BMI1BMI2-NEXT: shldl %cl, %edx, %esi
>> ; X86-BMI1BMI2-NEXT: shlxl %ecx, %edx, %edi
>> ; X86-BMI1BMI2-NEXT: xorl %edx, %edx
>> @@ -3390,7 +3392,7 @@ define i64 @bzhi64_d2_load(i64* %w, i64
>> ; X64-NOBMI: # %bb.0:
>> ; X64-NOBMI-NEXT: movq %rsi, %rcx
>> ; X64-NOBMI-NEXT: movq (%rdi), %rax
>> -; X64-NOBMI-NEXT: negl %ecx
>> +; X64-NOBMI-NEXT: negb %cl
>> ; X64-NOBMI-NEXT: shlq %cl, %rax<b
>
>
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