[llvm] r342457 - Fixes removal of dead elements from PressureDiff (PR37252).

Hans Wennborg via llvm-commits llvm-commits at lists.llvm.org
Tue Sep 18 07:16:35 PDT 2018


Also the email address associated with your committer ID seems to be bouncing.

On Tue, Sep 18, 2018 at 4:14 PM, Hans Wennborg <hans at chromium.org> wrote:
> Reverted in r342482. This broke the lit tests.
>
> On Tue, Sep 18, 2018 at 11:53 AM, Yury Gribov via llvm-commits
> <llvm-commits at lists.llvm.org> wrote:
>> Author: ygribov
>> Date: Tue Sep 18 02:53:42 2018
>> New Revision: 342457
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=342457&view=rev
>> Log:
>> Fixes removal of dead elements from PressureDiff (PR37252).
>>
>> Reviewed By: MatzeB
>>
>> Differential Revision: https://reviews.llvm.org/D51495
>>
>> Modified:
>>     llvm/trunk/lib/CodeGen/RegisterPressure.cpp
>>     llvm/trunk/test/CodeGen/X86/GlobalISel/gep.ll
>>     llvm/trunk/test/CodeGen/X86/divrem.ll
>>     llvm/trunk/test/CodeGen/X86/divrem8_ext.ll
>>
>> Modified: llvm/trunk/lib/CodeGen/RegisterPressure.cpp
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/RegisterPressure.cpp?rev=342457&r1=342456&r2=342457&view=diff
>> ==============================================================================
>> --- llvm/trunk/lib/CodeGen/RegisterPressure.cpp (original)
>> +++ llvm/trunk/lib/CodeGen/RegisterPressure.cpp Tue Sep 18 02:53:42 2018
>> @@ -681,8 +681,7 @@ void PressureDiff::addPressureChange(uns
>>        PressureDiff::iterator J;
>>        for (J = std::next(I); J != E && J->isValid(); ++J, ++I)
>>          *I = *J;
>> -      if (J != E)
>> -        *I = *J;
>> +      *I = PressureChange();
>>      }
>>    }
>>  }
>>
>> Modified: llvm/trunk/test/CodeGen/X86/GlobalISel/gep.ll
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/GlobalISel/gep.ll?rev=342457&r1=342456&r2=342457&view=diff
>> ==============================================================================
>> --- llvm/trunk/test/CodeGen/X86/GlobalISel/gep.ll (original)
>> +++ llvm/trunk/test/CodeGen/X86/GlobalISel/gep.ll Tue Sep 18 02:53:42 2018
>> @@ -6,12 +6,12 @@ define i32* @test_gep_i8(i32 *%arr, i8 %
>>  ; X64_GISEL-LABEL: test_gep_i8:
>>  ; X64_GISEL:       # %bb.0:
>>  ; X64_GISEL-NEXT:    # kill: def $esi killed $esi def $rsi
>> -; X64_GISEL-NEXT:    movq $4, %rax
>>  ; X64_GISEL-NEXT:    movq $56, %rcx
>>  ; X64_GISEL-NEXT:    # kill: def $cl killed $rcx
>>  ; X64_GISEL-NEXT:    shlq %cl, %rsi
>>  ; X64_GISEL-NEXT:    movq $56, %rcx
>>  ; X64_GISEL-NEXT:    # kill: def $cl killed $rcx
>> +; X64_GISEL-NEXT:    movq $4, %rax
>>  ; X64_GISEL-NEXT:    sarq %cl, %rsi
>>  ; X64_GISEL-NEXT:    imulq %rax, %rsi
>>  ; X64_GISEL-NEXT:    leaq (%rdi,%rsi), %rax
>> @@ -46,12 +46,12 @@ define i32* @test_gep_i16(i32 *%arr, i16
>>  ; X64_GISEL-LABEL: test_gep_i16:
>>  ; X64_GISEL:       # %bb.0:
>>  ; X64_GISEL-NEXT:    # kill: def $esi killed $esi def $rsi
>> -; X64_GISEL-NEXT:    movq $4, %rax
>>  ; X64_GISEL-NEXT:    movq $48, %rcx
>>  ; X64_GISEL-NEXT:    # kill: def $cl killed $rcx
>>  ; X64_GISEL-NEXT:    shlq %cl, %rsi
>>  ; X64_GISEL-NEXT:    movq $48, %rcx
>>  ; X64_GISEL-NEXT:    # kill: def $cl killed $rcx
>> +; X64_GISEL-NEXT:    movq $4, %rax
>>  ; X64_GISEL-NEXT:    sarq %cl, %rsi
>>  ; X64_GISEL-NEXT:    imulq %rax, %rsi
>>  ; X64_GISEL-NEXT:    leaq (%rdi,%rsi), %rax
>>
>> Modified: llvm/trunk/test/CodeGen/X86/divrem.ll
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/divrem.ll?rev=342457&r1=342456&r2=342457&view=diff
>> ==============================================================================
>> --- llvm/trunk/test/CodeGen/X86/divrem.ll (original)
>> +++ llvm/trunk/test/CodeGen/X86/divrem.ll Tue Sep 18 02:53:42 2018
>> @@ -57,11 +57,11 @@ define void @si32(i32 %x, i32 %y, i32* %
>>  ; X32-LABEL: si32:
>>  ; X32:       # %bb.0:
>>  ; X32-NEXT:    pushl %esi
>> -; X32-NEXT:    movl {{[0-9]+}}(%esp), %ecx
>> -; X32-NEXT:    movl {{[0-9]+}}(%esp), %esi
>>  ; X32-NEXT:    movl {{[0-9]+}}(%esp), %eax
>>  ; X32-NEXT:    cltd
>>  ; X32-NEXT:    idivl {{[0-9]+}}(%esp)
>> +; X32-NEXT:    movl {{[0-9]+}}(%esp), %ecx
>> +; X32-NEXT:    movl {{[0-9]+}}(%esp), %esi
>>  ; X32-NEXT:    movl %eax, (%esi)
>>  ; X32-NEXT:    movl %edx, (%ecx)
>>  ; X32-NEXT:    popl %esi
>> @@ -87,11 +87,11 @@ define void @si16(i16 %x, i16 %y, i16* %
>>  ; X32-LABEL: si16:
>>  ; X32:       # %bb.0:
>>  ; X32-NEXT:    pushl %esi
>> -; X32-NEXT:    movl {{[0-9]+}}(%esp), %ecx
>> -; X32-NEXT:    movl {{[0-9]+}}(%esp), %esi
>>  ; X32-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
>>  ; X32-NEXT:    cwtd
>>  ; X32-NEXT:    idivw {{[0-9]+}}(%esp)
>> +; X32-NEXT:    movl {{[0-9]+}}(%esp), %ecx
>> +; X32-NEXT:    movl {{[0-9]+}}(%esp), %esi
>>  ; X32-NEXT:    movw %ax, (%esi)
>>  ; X32-NEXT:    movw %dx, (%ecx)
>>  ; X32-NEXT:    popl %esi
>> @@ -117,11 +117,11 @@ define void @si8(i8 %x, i8 %y, i8* %p, i
>>  ; X32-LABEL: si8:
>>  ; X32:       # %bb.0:
>>  ; X32-NEXT:    pushl %ebx
>> -; X32-NEXT:    movl {{[0-9]+}}(%esp), %ecx
>> -; X32-NEXT:    movl {{[0-9]+}}(%esp), %edx
>>  ; X32-NEXT:    movb {{[0-9]+}}(%esp), %al
>>  ; X32-NEXT:    cbtw
>>  ; X32-NEXT:    idivb {{[0-9]+}}(%esp)
>> +; X32-NEXT:    movl {{[0-9]+}}(%esp), %ecx
>> +; X32-NEXT:    movl {{[0-9]+}}(%esp), %edx
>>  ; X32-NEXT:    movsbl %ah, %ebx
>>  ; X32-NEXT:    movb %al, (%edx)
>>  ; X32-NEXT:    movb %bl, (%ecx)
>> @@ -199,11 +199,11 @@ define void @ui32(i32 %x, i32 %y, i32* %
>>  ; X32-LABEL: ui32:
>>  ; X32:       # %bb.0:
>>  ; X32-NEXT:    pushl %esi
>> -; X32-NEXT:    movl {{[0-9]+}}(%esp), %ecx
>> -; X32-NEXT:    movl {{[0-9]+}}(%esp), %esi
>>  ; X32-NEXT:    movl {{[0-9]+}}(%esp), %eax
>>  ; X32-NEXT:    xorl %edx, %edx
>>  ; X32-NEXT:    divl {{[0-9]+}}(%esp)
>> +; X32-NEXT:    movl {{[0-9]+}}(%esp), %ecx
>> +; X32-NEXT:    movl {{[0-9]+}}(%esp), %esi
>>  ; X32-NEXT:    movl %eax, (%esi)
>>  ; X32-NEXT:    movl %edx, (%ecx)
>>  ; X32-NEXT:    popl %esi
>> @@ -229,11 +229,11 @@ define void @ui16(i16 %x, i16 %y, i16* %
>>  ; X32-LABEL: ui16:
>>  ; X32:       # %bb.0:
>>  ; X32-NEXT:    pushl %esi
>> -; X32-NEXT:    movl {{[0-9]+}}(%esp), %ecx
>> -; X32-NEXT:    movl {{[0-9]+}}(%esp), %esi
>>  ; X32-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
>>  ; X32-NEXT:    xorl %edx, %edx
>>  ; X32-NEXT:    divw {{[0-9]+}}(%esp)
>> +; X32-NEXT:    movl {{[0-9]+}}(%esp), %ecx
>> +; X32-NEXT:    movl {{[0-9]+}}(%esp), %esi
>>  ; X32-NEXT:    movw %ax, (%esi)
>>  ; X32-NEXT:    movw %dx, (%ecx)
>>  ; X32-NEXT:    popl %esi
>> @@ -259,11 +259,11 @@ define void @ui8(i8 %x, i8 %y, i8* %p, i
>>  ; X32-LABEL: ui8:
>>  ; X32:       # %bb.0:
>>  ; X32-NEXT:    pushl %ebx
>> -; X32-NEXT:    movl {{[0-9]+}}(%esp), %ecx
>> -; X32-NEXT:    movl {{[0-9]+}}(%esp), %edx
>>  ; X32-NEXT:    movzbl {{[0-9]+}}(%esp), %eax
>>  ; X32-NEXT:    # kill: def $eax killed $eax def $ax
>>  ; X32-NEXT:    divb {{[0-9]+}}(%esp)
>> +; X32-NEXT:    movl {{[0-9]+}}(%esp), %ecx
>> +; X32-NEXT:    movl {{[0-9]+}}(%esp), %edx
>>  ; X32-NEXT:    movzbl %ah, %ebx
>>  ; X32-NEXT:    movb %al, (%edx)
>>  ; X32-NEXT:    movb %bl, (%ecx)
>>
>> Modified: llvm/trunk/test/CodeGen/X86/divrem8_ext.ll
>> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/divrem8_ext.ll?rev=342457&r1=342456&r2=342457&view=diff
>> ==============================================================================
>> --- llvm/trunk/test/CodeGen/X86/divrem8_ext.ll (original)
>> +++ llvm/trunk/test/CodeGen/X86/divrem8_ext.ll Tue Sep 18 02:53:42 2018
>> @@ -150,8 +150,8 @@ define i8 @test_srem_noext_ah(i8 %x, i8
>>  ; X32-LABEL: test_srem_noext_ah:
>>  ; X32:       # %bb.0:
>>  ; X32-NEXT:    movb {{[0-9]+}}(%esp), %al
>> -; X32-NEXT:    movb {{[0-9]+}}(%esp), %cl
>>  ; X32-NEXT:    cbtw
>> +; X32-NEXT:    movb {{[0-9]+}}(%esp), %cl
>>  ; X32-NEXT:    idivb %cl
>>  ; X32-NEXT:    movsbl %ah, %eax
>>  ; X32-NEXT:    addb %cl, %al
>>
>>
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