[llvm] e26cadc - [ARM] Constant pools need 4-byte alignment if we only have tADR
John Brawn via llvm-commits
llvm-commits at lists.llvm.org
Tue Sep 6 03:36:22 PDT 2022
Author: John Brawn
Date: 2022-09-06T11:36:12+01:00
New Revision: e26cadcc32a2194610963bfe140795e978349ba2
URL: https://github.com/llvm/llvm-project/commit/e26cadcc32a2194610963bfe140795e978349ba2
DIFF: https://github.com/llvm/llvm-project/commit/e26cadcc32a2194610963bfe140795e978349ba2.diff
LOG: [ARM] Constant pools need 4-byte alignment if we only have tADR
When the only ADR instruction we have is the 16-bit thumb one then all
constant pool entries need to be 4-byte aligned, as tADR has an offset
that's a multiple of 4.
It looks like previously there happened to be no situations in which
we encountered a constant pool entry with alignment less than 4, so
failing to do this didn't cause any problems, but the expansion of
cttz to a table added by D128911 does use a constant pool with
alignment 1, so we now need to handle it correctly.
Differential Revision: https://reviews.llvm.org/D133199
Added:
Modified:
llvm/lib/Target/ARM/ARMISelLowering.cpp
llvm/test/CodeGen/ARM/cttz.ll
Removed:
################################################################################
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp
index 999f7393ceee1..d6bd93f73b39b 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.cpp
+++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp
@@ -3445,11 +3445,16 @@ SDValue ARMTargetLowering::LowerConstantPool(SDValue Op,
return LowerGlobalAddress(GA, DAG);
}
+ // The 16-bit ADR instruction can only encode offsets that are multiples of 4,
+ // so we need to align to at least 4 bytes when we don't have 32-bit ADR.
+ Align CPAlign = CP->getAlign();
+ if (Subtarget->isThumb1Only())
+ CPAlign = std::max(CPAlign, Align(4));
if (CP->isMachineConstantPoolEntry())
Res =
- DAG.getTargetConstantPool(CP->getMachineCPVal(), PtrVT, CP->getAlign());
+ DAG.getTargetConstantPool(CP->getMachineCPVal(), PtrVT, CPAlign);
else
- Res = DAG.getTargetConstantPool(CP->getConstVal(), PtrVT, CP->getAlign());
+ Res = DAG.getTargetConstantPool(CP->getConstVal(), PtrVT, CPAlign);
return DAG.getNode(ARMISD::Wrapper, dl, MVT::i32, Res);
}
diff --git a/llvm/test/CodeGen/ARM/cttz.ll b/llvm/test/CodeGen/ARM/cttz.ll
index 872ee1eb6a696..d9663a1c148fc 100644
--- a/llvm/test/CodeGen/ARM/cttz.ll
+++ b/llvm/test/CodeGen/ARM/cttz.ll
@@ -1,7 +1,8 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple arm-eabi -mattr=+v6t2 | FileCheck %s
; RUN: llc < %s -mtriple arm-eabi -mattr=+v6t2 -mattr=+neon | FileCheck %s
-; RUN: llc < %s -mtriple thumbv6m-none-eabi | FileCheck %s --check-prefix=CHECK-THUMB
+; RUN: llc < %s -mtriple thumbv6m-none-eabi | FileCheck %s --check-prefix=CHECK-6M
+; RUN: llc < %s -mtriple thumbv8m.base-none-eabi | FileCheck %s --check-prefix=CHECK-8MBASE
; This test checks the @llvm.cttz.* intrinsics for integers.
@@ -20,34 +21,61 @@ define i8 @test_i8(i8 %a) {
; CHECK-NEXT: clz r0, r0
; CHECK-NEXT: bx lr
;
-; CHECK-THUMB-LABEL: test_i8:
-; CHECK-THUMB: @ %bb.0:
-; CHECK-THUMB-NEXT: lsls r1, r0, #24
-; CHECK-THUMB-NEXT: beq .LBB0_3
-; CHECK-THUMB-NEXT: @ %bb.1: @ %cond.false
-; CHECK-THUMB-NEXT: cmp r0, #0
-; CHECK-THUMB-NEXT: beq .LBB0_4
-; CHECK-THUMB-NEXT: @ %bb.2: @ %cond.false
-; CHECK-THUMB-NEXT: rsbs r1, r0, #0
-; CHECK-THUMB-NEXT: ands r1, r0
-; CHECK-THUMB-NEXT: ldr r0, .LCPI0_0
-; CHECK-THUMB-NEXT: muls r0, r1, r0
-; CHECK-THUMB-NEXT: lsrs r0, r0, #27
-; CHECK-THUMB-NEXT: adr r1, .LCPI0_1
-; CHECK-THUMB-NEXT: ldrb r0, [r1, r0]
-; CHECK-THUMB-NEXT: bx lr
-; CHECK-THUMB-NEXT: .LBB0_3:
-; CHECK-THUMB-NEXT: movs r0, #8
-; CHECK-THUMB-NEXT: bx lr
-; CHECK-THUMB-NEXT: .LBB0_4:
-; CHECK-THUMB-NEXT: movs r0, #32
-; CHECK-THUMB-NEXT: bx lr
-; CHECK-THUMB-NEXT: .p2align 2
-; CHECK-THUMB-NEXT: @ %bb.5:
-; CHECK-THUMB-NEXT: .LCPI0_0:
-; CHECK-THUMB-NEXT: .long 125613361 @ 0x77cb531
-; CHECK-THUMB-NEXT: .LCPI0_1:
-; CHECK-THUMB-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+; CHECK-6M-LABEL: test_i8:
+; CHECK-6M: @ %bb.0:
+; CHECK-6M-NEXT: lsls r1, r0, #24
+; CHECK-6M-NEXT: beq .LBB0_3
+; CHECK-6M-NEXT: @ %bb.1: @ %cond.false
+; CHECK-6M-NEXT: cmp r0, #0
+; CHECK-6M-NEXT: beq .LBB0_4
+; CHECK-6M-NEXT: @ %bb.2: @ %cond.false
+; CHECK-6M-NEXT: rsbs r1, r0, #0
+; CHECK-6M-NEXT: ands r1, r0
+; CHECK-6M-NEXT: ldr r0, .LCPI0_0
+; CHECK-6M-NEXT: muls r0, r1, r0
+; CHECK-6M-NEXT: lsrs r0, r0, #27
+; CHECK-6M-NEXT: adr r1, .LCPI0_1
+; CHECK-6M-NEXT: ldrb r0, [r1, r0]
+; CHECK-6M-NEXT: bx lr
+; CHECK-6M-NEXT: .LBB0_3:
+; CHECK-6M-NEXT: movs r0, #8
+; CHECK-6M-NEXT: bx lr
+; CHECK-6M-NEXT: .LBB0_4:
+; CHECK-6M-NEXT: movs r0, #32
+; CHECK-6M-NEXT: bx lr
+; CHECK-6M-NEXT: .p2align 2
+; CHECK-6M-NEXT: @ %bb.5:
+; CHECK-6M-NEXT: .LCPI0_0:
+; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
+; CHECK-6M-NEXT: .LCPI0_1:
+; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+;
+; CHECK-8MBASE-LABEL: test_i8:
+; CHECK-8MBASE: @ %bb.0:
+; CHECK-8MBASE-NEXT: lsls r1, r0, #24
+; CHECK-8MBASE-NEXT: beq .LBB0_3
+; CHECK-8MBASE-NEXT: @ %bb.1: @ %cond.false
+; CHECK-8MBASE-NEXT: cbz r0, .LBB0_4
+; CHECK-8MBASE-NEXT: @ %bb.2: @ %cond.false
+; CHECK-8MBASE-NEXT: rsbs r1, r0, #0
+; CHECK-8MBASE-NEXT: ands r1, r0
+; CHECK-8MBASE-NEXT: movw r0, #46385
+; CHECK-8MBASE-NEXT: movt r0, #1916
+; CHECK-8MBASE-NEXT: muls r0, r1, r0
+; CHECK-8MBASE-NEXT: lsrs r0, r0, #27
+; CHECK-8MBASE-NEXT: adr r1, .LCPI0_0
+; CHECK-8MBASE-NEXT: ldrb r0, [r1, r0]
+; CHECK-8MBASE-NEXT: bx lr
+; CHECK-8MBASE-NEXT: .LBB0_3:
+; CHECK-8MBASE-NEXT: movs r0, #8
+; CHECK-8MBASE-NEXT: bx lr
+; CHECK-8MBASE-NEXT: .LBB0_4:
+; CHECK-8MBASE-NEXT: movs r0, #32
+; CHECK-8MBASE-NEXT: bx lr
+; CHECK-8MBASE-NEXT: .p2align 2
+; CHECK-8MBASE-NEXT: @ %bb.5:
+; CHECK-8MBASE-NEXT: .LCPI0_0:
+; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i8 @llvm.cttz.i8(i8 %a, i1 false)
ret i8 %tmp
}
@@ -60,34 +88,61 @@ define i16 @test_i16(i16 %a) {
; CHECK-NEXT: clz r0, r0
; CHECK-NEXT: bx lr
;
-; CHECK-THUMB-LABEL: test_i16:
-; CHECK-THUMB: @ %bb.0:
-; CHECK-THUMB-NEXT: lsls r1, r0, #16
-; CHECK-THUMB-NEXT: beq .LBB1_3
-; CHECK-THUMB-NEXT: @ %bb.1: @ %cond.false
-; CHECK-THUMB-NEXT: cmp r0, #0
-; CHECK-THUMB-NEXT: beq .LBB1_4
-; CHECK-THUMB-NEXT: @ %bb.2: @ %cond.false
-; CHECK-THUMB-NEXT: rsbs r1, r0, #0
-; CHECK-THUMB-NEXT: ands r1, r0
-; CHECK-THUMB-NEXT: ldr r0, .LCPI1_0
-; CHECK-THUMB-NEXT: muls r0, r1, r0
-; CHECK-THUMB-NEXT: lsrs r0, r0, #27
-; CHECK-THUMB-NEXT: adr r1, .LCPI1_1
-; CHECK-THUMB-NEXT: ldrb r0, [r1, r0]
-; CHECK-THUMB-NEXT: bx lr
-; CHECK-THUMB-NEXT: .LBB1_3:
-; CHECK-THUMB-NEXT: movs r0, #16
-; CHECK-THUMB-NEXT: bx lr
-; CHECK-THUMB-NEXT: .LBB1_4:
-; CHECK-THUMB-NEXT: movs r0, #32
-; CHECK-THUMB-NEXT: bx lr
-; CHECK-THUMB-NEXT: .p2align 2
-; CHECK-THUMB-NEXT: @ %bb.5:
-; CHECK-THUMB-NEXT: .LCPI1_0:
-; CHECK-THUMB-NEXT: .long 125613361 @ 0x77cb531
-; CHECK-THUMB-NEXT: .LCPI1_1:
-; CHECK-THUMB-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+; CHECK-6M-LABEL: test_i16:
+; CHECK-6M: @ %bb.0:
+; CHECK-6M-NEXT: lsls r1, r0, #16
+; CHECK-6M-NEXT: beq .LBB1_3
+; CHECK-6M-NEXT: @ %bb.1: @ %cond.false
+; CHECK-6M-NEXT: cmp r0, #0
+; CHECK-6M-NEXT: beq .LBB1_4
+; CHECK-6M-NEXT: @ %bb.2: @ %cond.false
+; CHECK-6M-NEXT: rsbs r1, r0, #0
+; CHECK-6M-NEXT: ands r1, r0
+; CHECK-6M-NEXT: ldr r0, .LCPI1_0
+; CHECK-6M-NEXT: muls r0, r1, r0
+; CHECK-6M-NEXT: lsrs r0, r0, #27
+; CHECK-6M-NEXT: adr r1, .LCPI1_1
+; CHECK-6M-NEXT: ldrb r0, [r1, r0]
+; CHECK-6M-NEXT: bx lr
+; CHECK-6M-NEXT: .LBB1_3:
+; CHECK-6M-NEXT: movs r0, #16
+; CHECK-6M-NEXT: bx lr
+; CHECK-6M-NEXT: .LBB1_4:
+; CHECK-6M-NEXT: movs r0, #32
+; CHECK-6M-NEXT: bx lr
+; CHECK-6M-NEXT: .p2align 2
+; CHECK-6M-NEXT: @ %bb.5:
+; CHECK-6M-NEXT: .LCPI1_0:
+; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
+; CHECK-6M-NEXT: .LCPI1_1:
+; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+;
+; CHECK-8MBASE-LABEL: test_i16:
+; CHECK-8MBASE: @ %bb.0:
+; CHECK-8MBASE-NEXT: lsls r1, r0, #16
+; CHECK-8MBASE-NEXT: beq .LBB1_3
+; CHECK-8MBASE-NEXT: @ %bb.1: @ %cond.false
+; CHECK-8MBASE-NEXT: cbz r0, .LBB1_4
+; CHECK-8MBASE-NEXT: @ %bb.2: @ %cond.false
+; CHECK-8MBASE-NEXT: rsbs r1, r0, #0
+; CHECK-8MBASE-NEXT: ands r1, r0
+; CHECK-8MBASE-NEXT: movw r0, #46385
+; CHECK-8MBASE-NEXT: movt r0, #1916
+; CHECK-8MBASE-NEXT: muls r0, r1, r0
+; CHECK-8MBASE-NEXT: lsrs r0, r0, #27
+; CHECK-8MBASE-NEXT: adr r1, .LCPI1_0
+; CHECK-8MBASE-NEXT: ldrb r0, [r1, r0]
+; CHECK-8MBASE-NEXT: bx lr
+; CHECK-8MBASE-NEXT: .LBB1_3:
+; CHECK-8MBASE-NEXT: movs r0, #16
+; CHECK-8MBASE-NEXT: bx lr
+; CHECK-8MBASE-NEXT: .LBB1_4:
+; CHECK-8MBASE-NEXT: movs r0, #32
+; CHECK-8MBASE-NEXT: bx lr
+; CHECK-8MBASE-NEXT: .p2align 2
+; CHECK-8MBASE-NEXT: @ %bb.5:
+; CHECK-8MBASE-NEXT: .LCPI1_0:
+; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i16 @llvm.cttz.i16(i16 %a, i1 false)
ret i16 %tmp
}
@@ -99,31 +154,54 @@ define i32 @test_i32(i32 %a) {
; CHECK-NEXT: clz r0, r0
; CHECK-NEXT: bx lr
;
-; CHECK-THUMB-LABEL: test_i32:
-; CHECK-THUMB: @ %bb.0:
-; CHECK-THUMB-NEXT: cmp r0, #0
-; CHECK-THUMB-NEXT: beq .LBB2_3
-; CHECK-THUMB-NEXT: @ %bb.1: @ %cond.false
-; CHECK-THUMB-NEXT: cmp r0, #0
-; CHECK-THUMB-NEXT: beq .LBB2_3
-; CHECK-THUMB-NEXT: @ %bb.2: @ %cond.false
-; CHECK-THUMB-NEXT: rsbs r1, r0, #0
-; CHECK-THUMB-NEXT: ands r1, r0
-; CHECK-THUMB-NEXT: ldr r0, .LCPI2_0
-; CHECK-THUMB-NEXT: muls r0, r1, r0
-; CHECK-THUMB-NEXT: lsrs r0, r0, #27
-; CHECK-THUMB-NEXT: adr r1, .LCPI2_1
-; CHECK-THUMB-NEXT: ldrb r0, [r1, r0]
-; CHECK-THUMB-NEXT: bx lr
-; CHECK-THUMB-NEXT: .LBB2_3:
-; CHECK-THUMB-NEXT: movs r0, #32
-; CHECK-THUMB-NEXT: bx lr
-; CHECK-THUMB-NEXT: .p2align 2
-; CHECK-THUMB-NEXT: @ %bb.4:
-; CHECK-THUMB-NEXT: .LCPI2_0:
-; CHECK-THUMB-NEXT: .long 125613361 @ 0x77cb531
-; CHECK-THUMB-NEXT: .LCPI2_1:
-; CHECK-THUMB-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+; CHECK-6M-LABEL: test_i32:
+; CHECK-6M: @ %bb.0:
+; CHECK-6M-NEXT: cmp r0, #0
+; CHECK-6M-NEXT: beq .LBB2_3
+; CHECK-6M-NEXT: @ %bb.1: @ %cond.false
+; CHECK-6M-NEXT: cmp r0, #0
+; CHECK-6M-NEXT: beq .LBB2_3
+; CHECK-6M-NEXT: @ %bb.2: @ %cond.false
+; CHECK-6M-NEXT: rsbs r1, r0, #0
+; CHECK-6M-NEXT: ands r1, r0
+; CHECK-6M-NEXT: ldr r0, .LCPI2_0
+; CHECK-6M-NEXT: muls r0, r1, r0
+; CHECK-6M-NEXT: lsrs r0, r0, #27
+; CHECK-6M-NEXT: adr r1, .LCPI2_1
+; CHECK-6M-NEXT: ldrb r0, [r1, r0]
+; CHECK-6M-NEXT: bx lr
+; CHECK-6M-NEXT: .LBB2_3:
+; CHECK-6M-NEXT: movs r0, #32
+; CHECK-6M-NEXT: bx lr
+; CHECK-6M-NEXT: .p2align 2
+; CHECK-6M-NEXT: @ %bb.4:
+; CHECK-6M-NEXT: .LCPI2_0:
+; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
+; CHECK-6M-NEXT: .LCPI2_1:
+; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+;
+; CHECK-8MBASE-LABEL: test_i32:
+; CHECK-8MBASE: @ %bb.0:
+; CHECK-8MBASE-NEXT: cbz r0, .LBB2_3
+; CHECK-8MBASE-NEXT: @ %bb.1: @ %cond.false
+; CHECK-8MBASE-NEXT: cbz r0, .LBB2_3
+; CHECK-8MBASE-NEXT: @ %bb.2: @ %cond.false
+; CHECK-8MBASE-NEXT: rsbs r1, r0, #0
+; CHECK-8MBASE-NEXT: ands r1, r0
+; CHECK-8MBASE-NEXT: movw r0, #46385
+; CHECK-8MBASE-NEXT: movt r0, #1916
+; CHECK-8MBASE-NEXT: muls r0, r1, r0
+; CHECK-8MBASE-NEXT: lsrs r0, r0, #27
+; CHECK-8MBASE-NEXT: adr r1, .LCPI2_0
+; CHECK-8MBASE-NEXT: ldrb r0, [r1, r0]
+; CHECK-8MBASE-NEXT: bx lr
+; CHECK-8MBASE-NEXT: .LBB2_3:
+; CHECK-8MBASE-NEXT: movs r0, #32
+; CHECK-8MBASE-NEXT: bx lr
+; CHECK-8MBASE-NEXT: .p2align 2
+; CHECK-8MBASE-NEXT: @ %bb.4:
+; CHECK-8MBASE-NEXT: .LCPI2_0:
+; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i32 @llvm.cttz.i32(i32 %a, i1 false)
ret i32 %tmp
}
@@ -141,52 +219,95 @@ define i64 @test_i64(i64 %a) {
; CHECK-NEXT: mov r1, #0
; CHECK-NEXT: bx lr
;
-; CHECK-THUMB-LABEL: test_i64:
-; CHECK-THUMB: @ %bb.0:
-; CHECK-THUMB-NEXT: .save {r4, r5, r7, lr}
-; CHECK-THUMB-NEXT: push {r4, r5, r7, lr}
-; CHECK-THUMB-NEXT: ldr r5, .LCPI3_0
-; CHECK-THUMB-NEXT: adr r4, .LCPI3_1
-; CHECK-THUMB-NEXT: movs r3, #32
-; CHECK-THUMB-NEXT: cmp r0, #0
-; CHECK-THUMB-NEXT: mov r2, r3
-; CHECK-THUMB-NEXT: bne .LBB3_5
-; CHECK-THUMB-NEXT: @ %bb.1:
-; CHECK-THUMB-NEXT: cmp r1, #0
-; CHECK-THUMB-NEXT: bne .LBB3_6
-; CHECK-THUMB-NEXT: .LBB3_2:
-; CHECK-THUMB-NEXT: cmp r0, #0
-; CHECK-THUMB-NEXT: bne .LBB3_4
-; CHECK-THUMB-NEXT: .LBB3_3:
-; CHECK-THUMB-NEXT: adds r3, #32
-; CHECK-THUMB-NEXT: mov r2, r3
-; CHECK-THUMB-NEXT: .LBB3_4:
-; CHECK-THUMB-NEXT: movs r1, #0
-; CHECK-THUMB-NEXT: mov r0, r2
-; CHECK-THUMB-NEXT: pop {r4, r5, r7, pc}
-; CHECK-THUMB-NEXT: .LBB3_5:
-; CHECK-THUMB-NEXT: rsbs r2, r0, #0
-; CHECK-THUMB-NEXT: ands r2, r0
-; CHECK-THUMB-NEXT: muls r2, r5, r2
-; CHECK-THUMB-NEXT: lsrs r2, r2, #27
-; CHECK-THUMB-NEXT: ldrb r2, [r4, r2]
-; CHECK-THUMB-NEXT: cmp r1, #0
-; CHECK-THUMB-NEXT: beq .LBB3_2
-; CHECK-THUMB-NEXT: .LBB3_6:
-; CHECK-THUMB-NEXT: rsbs r3, r1, #0
-; CHECK-THUMB-NEXT: ands r3, r1
-; CHECK-THUMB-NEXT: muls r5, r3, r5
-; CHECK-THUMB-NEXT: lsrs r1, r5, #27
-; CHECK-THUMB-NEXT: ldrb r3, [r4, r1]
-; CHECK-THUMB-NEXT: cmp r0, #0
-; CHECK-THUMB-NEXT: beq .LBB3_3
-; CHECK-THUMB-NEXT: b .LBB3_4
-; CHECK-THUMB-NEXT: .p2align 2
-; CHECK-THUMB-NEXT: @ %bb.7:
-; CHECK-THUMB-NEXT: .LCPI3_0:
-; CHECK-THUMB-NEXT: .long 125613361 @ 0x77cb531
-; CHECK-THUMB-NEXT: .LCPI3_1:
-; CHECK-THUMB-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+; CHECK-6M-LABEL: test_i64:
+; CHECK-6M: @ %bb.0:
+; CHECK-6M-NEXT: .save {r4, r5, r7, lr}
+; CHECK-6M-NEXT: push {r4, r5, r7, lr}
+; CHECK-6M-NEXT: ldr r5, .LCPI3_0
+; CHECK-6M-NEXT: adr r4, .LCPI3_1
+; CHECK-6M-NEXT: movs r3, #32
+; CHECK-6M-NEXT: cmp r0, #0
+; CHECK-6M-NEXT: mov r2, r3
+; CHECK-6M-NEXT: bne .LBB3_5
+; CHECK-6M-NEXT: @ %bb.1:
+; CHECK-6M-NEXT: cmp r1, #0
+; CHECK-6M-NEXT: bne .LBB3_6
+; CHECK-6M-NEXT: .LBB3_2:
+; CHECK-6M-NEXT: cmp r0, #0
+; CHECK-6M-NEXT: bne .LBB3_4
+; CHECK-6M-NEXT: .LBB3_3:
+; CHECK-6M-NEXT: adds r3, #32
+; CHECK-6M-NEXT: mov r2, r3
+; CHECK-6M-NEXT: .LBB3_4:
+; CHECK-6M-NEXT: movs r1, #0
+; CHECK-6M-NEXT: mov r0, r2
+; CHECK-6M-NEXT: pop {r4, r5, r7, pc}
+; CHECK-6M-NEXT: .LBB3_5:
+; CHECK-6M-NEXT: rsbs r2, r0, #0
+; CHECK-6M-NEXT: ands r2, r0
+; CHECK-6M-NEXT: muls r2, r5, r2
+; CHECK-6M-NEXT: lsrs r2, r2, #27
+; CHECK-6M-NEXT: ldrb r2, [r4, r2]
+; CHECK-6M-NEXT: cmp r1, #0
+; CHECK-6M-NEXT: beq .LBB3_2
+; CHECK-6M-NEXT: .LBB3_6:
+; CHECK-6M-NEXT: rsbs r3, r1, #0
+; CHECK-6M-NEXT: ands r3, r1
+; CHECK-6M-NEXT: muls r5, r3, r5
+; CHECK-6M-NEXT: lsrs r1, r5, #27
+; CHECK-6M-NEXT: ldrb r3, [r4, r1]
+; CHECK-6M-NEXT: cmp r0, #0
+; CHECK-6M-NEXT: beq .LBB3_3
+; CHECK-6M-NEXT: b .LBB3_4
+; CHECK-6M-NEXT: .p2align 2
+; CHECK-6M-NEXT: @ %bb.7:
+; CHECK-6M-NEXT: .LCPI3_0:
+; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
+; CHECK-6M-NEXT: .LCPI3_1:
+; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+;
+; CHECK-8MBASE-LABEL: test_i64:
+; CHECK-8MBASE: @ %bb.0:
+; CHECK-8MBASE-NEXT: .save {r4, r5, r7, lr}
+; CHECK-8MBASE-NEXT: push {r4, r5, r7, lr}
+; CHECK-8MBASE-NEXT: movw r5, #46385
+; CHECK-8MBASE-NEXT: movt r5, #1916
+; CHECK-8MBASE-NEXT: adr r4, .LCPI3_0
+; CHECK-8MBASE-NEXT: movs r3, #32
+; CHECK-8MBASE-NEXT: mov r2, r3
+; CHECK-8MBASE-NEXT: cbnz r0, .LBB3_5
+; CHECK-8MBASE-NEXT: @ %bb.1:
+; CHECK-8MBASE-NEXT: cbnz r1, .LBB3_6
+; CHECK-8MBASE-NEXT: .LBB3_2:
+; CHECK-8MBASE-NEXT: cbnz r0, .LBB3_4
+; CHECK-8MBASE-NEXT: .LBB3_3:
+; CHECK-8MBASE-NEXT: adds r3, #32
+; CHECK-8MBASE-NEXT: mov r2, r3
+; CHECK-8MBASE-NEXT: .LBB3_4:
+; CHECK-8MBASE-NEXT: movs r1, #0
+; CHECK-8MBASE-NEXT: mov r0, r2
+; CHECK-8MBASE-NEXT: pop {r4, r5, r7, pc}
+; CHECK-8MBASE-NEXT: .LBB3_5:
+; CHECK-8MBASE-NEXT: rsbs r2, r0, #0
+; CHECK-8MBASE-NEXT: ands r2, r0
+; CHECK-8MBASE-NEXT: muls r2, r5, r2
+; CHECK-8MBASE-NEXT: lsrs r2, r2, #27
+; CHECK-8MBASE-NEXT: ldrb r2, [r4, r2]
+; CHECK-8MBASE-NEXT: cmp r1, #0
+; CHECK-8MBASE-NEXT: beq .LBB3_2
+; CHECK-8MBASE-NEXT: .LBB3_6:
+; CHECK-8MBASE-NEXT: rsbs r3, r1, #0
+; CHECK-8MBASE-NEXT: ands r3, r1
+; CHECK-8MBASE-NEXT: muls r5, r3, r5
+; CHECK-8MBASE-NEXT: lsrs r1, r5, #27
+; CHECK-8MBASE-NEXT: ldrb r3, [r4, r1]
+; CHECK-8MBASE-NEXT: cmp r0, #0
+; CHECK-8MBASE-NEXT: beq .LBB3_3
+; CHECK-8MBASE-NEXT: b .LBB3_4
+; CHECK-8MBASE-NEXT: .p2align 2
+; CHECK-8MBASE-NEXT: @ %bb.7:
+; CHECK-8MBASE-NEXT: .LCPI3_0:
+; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i64 @llvm.cttz.i64(i64 %a, i1 false)
ret i64 %tmp
}
@@ -200,28 +321,49 @@ define i8 @test_i8_zero_undef(i8 %a) {
; CHECK-NEXT: clz r0, r0
; CHECK-NEXT: bx lr
;
-; CHECK-THUMB-LABEL: test_i8_zero_undef:
-; CHECK-THUMB: @ %bb.0:
-; CHECK-THUMB-NEXT: cmp r0, #0
-; CHECK-THUMB-NEXT: beq .LBB4_2
-; CHECK-THUMB-NEXT: @ %bb.1:
-; CHECK-THUMB-NEXT: rsbs r1, r0, #0
-; CHECK-THUMB-NEXT: ands r1, r0
-; CHECK-THUMB-NEXT: ldr r0, .LCPI4_0
-; CHECK-THUMB-NEXT: muls r0, r1, r0
-; CHECK-THUMB-NEXT: lsrs r0, r0, #27
-; CHECK-THUMB-NEXT: adr r1, .LCPI4_1
-; CHECK-THUMB-NEXT: ldrb r0, [r1, r0]
-; CHECK-THUMB-NEXT: bx lr
-; CHECK-THUMB-NEXT: .LBB4_2:
-; CHECK-THUMB-NEXT: movs r0, #32
-; CHECK-THUMB-NEXT: bx lr
-; CHECK-THUMB-NEXT: .p2align 2
-; CHECK-THUMB-NEXT: @ %bb.3:
-; CHECK-THUMB-NEXT: .LCPI4_0:
-; CHECK-THUMB-NEXT: .long 125613361 @ 0x77cb531
-; CHECK-THUMB-NEXT: .LCPI4_1:
-; CHECK-THUMB-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+; CHECK-6M-LABEL: test_i8_zero_undef:
+; CHECK-6M: @ %bb.0:
+; CHECK-6M-NEXT: cmp r0, #0
+; CHECK-6M-NEXT: beq .LBB4_2
+; CHECK-6M-NEXT: @ %bb.1:
+; CHECK-6M-NEXT: rsbs r1, r0, #0
+; CHECK-6M-NEXT: ands r1, r0
+; CHECK-6M-NEXT: ldr r0, .LCPI4_0
+; CHECK-6M-NEXT: muls r0, r1, r0
+; CHECK-6M-NEXT: lsrs r0, r0, #27
+; CHECK-6M-NEXT: adr r1, .LCPI4_1
+; CHECK-6M-NEXT: ldrb r0, [r1, r0]
+; CHECK-6M-NEXT: bx lr
+; CHECK-6M-NEXT: .LBB4_2:
+; CHECK-6M-NEXT: movs r0, #32
+; CHECK-6M-NEXT: bx lr
+; CHECK-6M-NEXT: .p2align 2
+; CHECK-6M-NEXT: @ %bb.3:
+; CHECK-6M-NEXT: .LCPI4_0:
+; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
+; CHECK-6M-NEXT: .LCPI4_1:
+; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+;
+; CHECK-8MBASE-LABEL: test_i8_zero_undef:
+; CHECK-8MBASE: @ %bb.0:
+; CHECK-8MBASE-NEXT: cbz r0, .LBB4_2
+; CHECK-8MBASE-NEXT: @ %bb.1:
+; CHECK-8MBASE-NEXT: rsbs r1, r0, #0
+; CHECK-8MBASE-NEXT: ands r1, r0
+; CHECK-8MBASE-NEXT: movw r0, #46385
+; CHECK-8MBASE-NEXT: movt r0, #1916
+; CHECK-8MBASE-NEXT: muls r0, r1, r0
+; CHECK-8MBASE-NEXT: lsrs r0, r0, #27
+; CHECK-8MBASE-NEXT: adr r1, .LCPI4_0
+; CHECK-8MBASE-NEXT: ldrb r0, [r1, r0]
+; CHECK-8MBASE-NEXT: bx lr
+; CHECK-8MBASE-NEXT: .LBB4_2:
+; CHECK-8MBASE-NEXT: movs r0, #32
+; CHECK-8MBASE-NEXT: bx lr
+; CHECK-8MBASE-NEXT: .p2align 2
+; CHECK-8MBASE-NEXT: @ %bb.3:
+; CHECK-8MBASE-NEXT: .LCPI4_0:
+; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i8 @llvm.cttz.i8(i8 %a, i1 true)
ret i8 %tmp
}
@@ -233,28 +375,49 @@ define i16 @test_i16_zero_undef(i16 %a) {
; CHECK-NEXT: clz r0, r0
; CHECK-NEXT: bx lr
;
-; CHECK-THUMB-LABEL: test_i16_zero_undef:
-; CHECK-THUMB: @ %bb.0:
-; CHECK-THUMB-NEXT: cmp r0, #0
-; CHECK-THUMB-NEXT: beq .LBB5_2
-; CHECK-THUMB-NEXT: @ %bb.1:
-; CHECK-THUMB-NEXT: rsbs r1, r0, #0
-; CHECK-THUMB-NEXT: ands r1, r0
-; CHECK-THUMB-NEXT: ldr r0, .LCPI5_0
-; CHECK-THUMB-NEXT: muls r0, r1, r0
-; CHECK-THUMB-NEXT: lsrs r0, r0, #27
-; CHECK-THUMB-NEXT: adr r1, .LCPI5_1
-; CHECK-THUMB-NEXT: ldrb r0, [r1, r0]
-; CHECK-THUMB-NEXT: bx lr
-; CHECK-THUMB-NEXT: .LBB5_2:
-; CHECK-THUMB-NEXT: movs r0, #32
-; CHECK-THUMB-NEXT: bx lr
-; CHECK-THUMB-NEXT: .p2align 2
-; CHECK-THUMB-NEXT: @ %bb.3:
-; CHECK-THUMB-NEXT: .LCPI5_0:
-; CHECK-THUMB-NEXT: .long 125613361 @ 0x77cb531
-; CHECK-THUMB-NEXT: .LCPI5_1:
-; CHECK-THUMB-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+; CHECK-6M-LABEL: test_i16_zero_undef:
+; CHECK-6M: @ %bb.0:
+; CHECK-6M-NEXT: cmp r0, #0
+; CHECK-6M-NEXT: beq .LBB5_2
+; CHECK-6M-NEXT: @ %bb.1:
+; CHECK-6M-NEXT: rsbs r1, r0, #0
+; CHECK-6M-NEXT: ands r1, r0
+; CHECK-6M-NEXT: ldr r0, .LCPI5_0
+; CHECK-6M-NEXT: muls r0, r1, r0
+; CHECK-6M-NEXT: lsrs r0, r0, #27
+; CHECK-6M-NEXT: adr r1, .LCPI5_1
+; CHECK-6M-NEXT: ldrb r0, [r1, r0]
+; CHECK-6M-NEXT: bx lr
+; CHECK-6M-NEXT: .LBB5_2:
+; CHECK-6M-NEXT: movs r0, #32
+; CHECK-6M-NEXT: bx lr
+; CHECK-6M-NEXT: .p2align 2
+; CHECK-6M-NEXT: @ %bb.3:
+; CHECK-6M-NEXT: .LCPI5_0:
+; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
+; CHECK-6M-NEXT: .LCPI5_1:
+; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+;
+; CHECK-8MBASE-LABEL: test_i16_zero_undef:
+; CHECK-8MBASE: @ %bb.0:
+; CHECK-8MBASE-NEXT: cbz r0, .LBB5_2
+; CHECK-8MBASE-NEXT: @ %bb.1:
+; CHECK-8MBASE-NEXT: rsbs r1, r0, #0
+; CHECK-8MBASE-NEXT: ands r1, r0
+; CHECK-8MBASE-NEXT: movw r0, #46385
+; CHECK-8MBASE-NEXT: movt r0, #1916
+; CHECK-8MBASE-NEXT: muls r0, r1, r0
+; CHECK-8MBASE-NEXT: lsrs r0, r0, #27
+; CHECK-8MBASE-NEXT: adr r1, .LCPI5_0
+; CHECK-8MBASE-NEXT: ldrb r0, [r1, r0]
+; CHECK-8MBASE-NEXT: bx lr
+; CHECK-8MBASE-NEXT: .LBB5_2:
+; CHECK-8MBASE-NEXT: movs r0, #32
+; CHECK-8MBASE-NEXT: bx lr
+; CHECK-8MBASE-NEXT: .p2align 2
+; CHECK-8MBASE-NEXT: @ %bb.3:
+; CHECK-8MBASE-NEXT: .LCPI5_0:
+; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i16 @llvm.cttz.i16(i16 %a, i1 true)
ret i16 %tmp
}
@@ -267,28 +430,49 @@ define i32 @test_i32_zero_undef(i32 %a) {
; CHECK-NEXT: clz r0, r0
; CHECK-NEXT: bx lr
;
-; CHECK-THUMB-LABEL: test_i32_zero_undef:
-; CHECK-THUMB: @ %bb.0:
-; CHECK-THUMB-NEXT: cmp r0, #0
-; CHECK-THUMB-NEXT: beq .LBB6_2
-; CHECK-THUMB-NEXT: @ %bb.1:
-; CHECK-THUMB-NEXT: rsbs r1, r0, #0
-; CHECK-THUMB-NEXT: ands r1, r0
-; CHECK-THUMB-NEXT: ldr r0, .LCPI6_0
-; CHECK-THUMB-NEXT: muls r0, r1, r0
-; CHECK-THUMB-NEXT: lsrs r0, r0, #27
-; CHECK-THUMB-NEXT: adr r1, .LCPI6_1
-; CHECK-THUMB-NEXT: ldrb r0, [r1, r0]
-; CHECK-THUMB-NEXT: bx lr
-; CHECK-THUMB-NEXT: .LBB6_2:
-; CHECK-THUMB-NEXT: movs r0, #32
-; CHECK-THUMB-NEXT: bx lr
-; CHECK-THUMB-NEXT: .p2align 2
-; CHECK-THUMB-NEXT: @ %bb.3:
-; CHECK-THUMB-NEXT: .LCPI6_0:
-; CHECK-THUMB-NEXT: .long 125613361 @ 0x77cb531
-; CHECK-THUMB-NEXT: .LCPI6_1:
-; CHECK-THUMB-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+; CHECK-6M-LABEL: test_i32_zero_undef:
+; CHECK-6M: @ %bb.0:
+; CHECK-6M-NEXT: cmp r0, #0
+; CHECK-6M-NEXT: beq .LBB6_2
+; CHECK-6M-NEXT: @ %bb.1:
+; CHECK-6M-NEXT: rsbs r1, r0, #0
+; CHECK-6M-NEXT: ands r1, r0
+; CHECK-6M-NEXT: ldr r0, .LCPI6_0
+; CHECK-6M-NEXT: muls r0, r1, r0
+; CHECK-6M-NEXT: lsrs r0, r0, #27
+; CHECK-6M-NEXT: adr r1, .LCPI6_1
+; CHECK-6M-NEXT: ldrb r0, [r1, r0]
+; CHECK-6M-NEXT: bx lr
+; CHECK-6M-NEXT: .LBB6_2:
+; CHECK-6M-NEXT: movs r0, #32
+; CHECK-6M-NEXT: bx lr
+; CHECK-6M-NEXT: .p2align 2
+; CHECK-6M-NEXT: @ %bb.3:
+; CHECK-6M-NEXT: .LCPI6_0:
+; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
+; CHECK-6M-NEXT: .LCPI6_1:
+; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+;
+; CHECK-8MBASE-LABEL: test_i32_zero_undef:
+; CHECK-8MBASE: @ %bb.0:
+; CHECK-8MBASE-NEXT: cbz r0, .LBB6_2
+; CHECK-8MBASE-NEXT: @ %bb.1:
+; CHECK-8MBASE-NEXT: rsbs r1, r0, #0
+; CHECK-8MBASE-NEXT: ands r1, r0
+; CHECK-8MBASE-NEXT: movw r0, #46385
+; CHECK-8MBASE-NEXT: movt r0, #1916
+; CHECK-8MBASE-NEXT: muls r0, r1, r0
+; CHECK-8MBASE-NEXT: lsrs r0, r0, #27
+; CHECK-8MBASE-NEXT: adr r1, .LCPI6_0
+; CHECK-8MBASE-NEXT: ldrb r0, [r1, r0]
+; CHECK-8MBASE-NEXT: bx lr
+; CHECK-8MBASE-NEXT: .LBB6_2:
+; CHECK-8MBASE-NEXT: movs r0, #32
+; CHECK-8MBASE-NEXT: bx lr
+; CHECK-8MBASE-NEXT: .p2align 2
+; CHECK-8MBASE-NEXT: @ %bb.3:
+; CHECK-8MBASE-NEXT: .LCPI6_0:
+; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i32 @llvm.cttz.i32(i32 %a, i1 true)
ret i32 %tmp
}
@@ -306,52 +490,95 @@ define i64 @test_i64_zero_undef(i64 %a) {
; CHECK-NEXT: mov r1, #0
; CHECK-NEXT: bx lr
;
-; CHECK-THUMB-LABEL: test_i64_zero_undef:
-; CHECK-THUMB: @ %bb.0:
-; CHECK-THUMB-NEXT: .save {r4, r5, r7, lr}
-; CHECK-THUMB-NEXT: push {r4, r5, r7, lr}
-; CHECK-THUMB-NEXT: ldr r5, .LCPI7_0
-; CHECK-THUMB-NEXT: adr r4, .LCPI7_1
-; CHECK-THUMB-NEXT: movs r3, #32
-; CHECK-THUMB-NEXT: cmp r0, #0
-; CHECK-THUMB-NEXT: mov r2, r3
-; CHECK-THUMB-NEXT: bne .LBB7_5
-; CHECK-THUMB-NEXT: @ %bb.1:
-; CHECK-THUMB-NEXT: cmp r1, #0
-; CHECK-THUMB-NEXT: bne .LBB7_6
-; CHECK-THUMB-NEXT: .LBB7_2:
-; CHECK-THUMB-NEXT: cmp r0, #0
-; CHECK-THUMB-NEXT: bne .LBB7_4
-; CHECK-THUMB-NEXT: .LBB7_3:
-; CHECK-THUMB-NEXT: adds r3, #32
-; CHECK-THUMB-NEXT: mov r2, r3
-; CHECK-THUMB-NEXT: .LBB7_4:
-; CHECK-THUMB-NEXT: movs r1, #0
-; CHECK-THUMB-NEXT: mov r0, r2
-; CHECK-THUMB-NEXT: pop {r4, r5, r7, pc}
-; CHECK-THUMB-NEXT: .LBB7_5:
-; CHECK-THUMB-NEXT: rsbs r2, r0, #0
-; CHECK-THUMB-NEXT: ands r2, r0
-; CHECK-THUMB-NEXT: muls r2, r5, r2
-; CHECK-THUMB-NEXT: lsrs r2, r2, #27
-; CHECK-THUMB-NEXT: ldrb r2, [r4, r2]
-; CHECK-THUMB-NEXT: cmp r1, #0
-; CHECK-THUMB-NEXT: beq .LBB7_2
-; CHECK-THUMB-NEXT: .LBB7_6:
-; CHECK-THUMB-NEXT: rsbs r3, r1, #0
-; CHECK-THUMB-NEXT: ands r3, r1
-; CHECK-THUMB-NEXT: muls r5, r3, r5
-; CHECK-THUMB-NEXT: lsrs r1, r5, #27
-; CHECK-THUMB-NEXT: ldrb r3, [r4, r1]
-; CHECK-THUMB-NEXT: cmp r0, #0
-; CHECK-THUMB-NEXT: beq .LBB7_3
-; CHECK-THUMB-NEXT: b .LBB7_4
-; CHECK-THUMB-NEXT: .p2align 2
-; CHECK-THUMB-NEXT: @ %bb.7:
-; CHECK-THUMB-NEXT: .LCPI7_0:
-; CHECK-THUMB-NEXT: .long 125613361 @ 0x77cb531
-; CHECK-THUMB-NEXT: .LCPI7_1:
-; CHECK-THUMB-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+; CHECK-6M-LABEL: test_i64_zero_undef:
+; CHECK-6M: @ %bb.0:
+; CHECK-6M-NEXT: .save {r4, r5, r7, lr}
+; CHECK-6M-NEXT: push {r4, r5, r7, lr}
+; CHECK-6M-NEXT: ldr r5, .LCPI7_0
+; CHECK-6M-NEXT: adr r4, .LCPI7_1
+; CHECK-6M-NEXT: movs r3, #32
+; CHECK-6M-NEXT: cmp r0, #0
+; CHECK-6M-NEXT: mov r2, r3
+; CHECK-6M-NEXT: bne .LBB7_5
+; CHECK-6M-NEXT: @ %bb.1:
+; CHECK-6M-NEXT: cmp r1, #0
+; CHECK-6M-NEXT: bne .LBB7_6
+; CHECK-6M-NEXT: .LBB7_2:
+; CHECK-6M-NEXT: cmp r0, #0
+; CHECK-6M-NEXT: bne .LBB7_4
+; CHECK-6M-NEXT: .LBB7_3:
+; CHECK-6M-NEXT: adds r3, #32
+; CHECK-6M-NEXT: mov r2, r3
+; CHECK-6M-NEXT: .LBB7_4:
+; CHECK-6M-NEXT: movs r1, #0
+; CHECK-6M-NEXT: mov r0, r2
+; CHECK-6M-NEXT: pop {r4, r5, r7, pc}
+; CHECK-6M-NEXT: .LBB7_5:
+; CHECK-6M-NEXT: rsbs r2, r0, #0
+; CHECK-6M-NEXT: ands r2, r0
+; CHECK-6M-NEXT: muls r2, r5, r2
+; CHECK-6M-NEXT: lsrs r2, r2, #27
+; CHECK-6M-NEXT: ldrb r2, [r4, r2]
+; CHECK-6M-NEXT: cmp r1, #0
+; CHECK-6M-NEXT: beq .LBB7_2
+; CHECK-6M-NEXT: .LBB7_6:
+; CHECK-6M-NEXT: rsbs r3, r1, #0
+; CHECK-6M-NEXT: ands r3, r1
+; CHECK-6M-NEXT: muls r5, r3, r5
+; CHECK-6M-NEXT: lsrs r1, r5, #27
+; CHECK-6M-NEXT: ldrb r3, [r4, r1]
+; CHECK-6M-NEXT: cmp r0, #0
+; CHECK-6M-NEXT: beq .LBB7_3
+; CHECK-6M-NEXT: b .LBB7_4
+; CHECK-6M-NEXT: .p2align 2
+; CHECK-6M-NEXT: @ %bb.7:
+; CHECK-6M-NEXT: .LCPI7_0:
+; CHECK-6M-NEXT: .long 125613361 @ 0x77cb531
+; CHECK-6M-NEXT: .LCPI7_1:
+; CHECK-6M-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
+;
+; CHECK-8MBASE-LABEL: test_i64_zero_undef:
+; CHECK-8MBASE: @ %bb.0:
+; CHECK-8MBASE-NEXT: .save {r4, r5, r7, lr}
+; CHECK-8MBASE-NEXT: push {r4, r5, r7, lr}
+; CHECK-8MBASE-NEXT: movw r5, #46385
+; CHECK-8MBASE-NEXT: movt r5, #1916
+; CHECK-8MBASE-NEXT: adr r4, .LCPI7_0
+; CHECK-8MBASE-NEXT: movs r3, #32
+; CHECK-8MBASE-NEXT: mov r2, r3
+; CHECK-8MBASE-NEXT: cbnz r0, .LBB7_5
+; CHECK-8MBASE-NEXT: @ %bb.1:
+; CHECK-8MBASE-NEXT: cbnz r1, .LBB7_6
+; CHECK-8MBASE-NEXT: .LBB7_2:
+; CHECK-8MBASE-NEXT: cbnz r0, .LBB7_4
+; CHECK-8MBASE-NEXT: .LBB7_3:
+; CHECK-8MBASE-NEXT: adds r3, #32
+; CHECK-8MBASE-NEXT: mov r2, r3
+; CHECK-8MBASE-NEXT: .LBB7_4:
+; CHECK-8MBASE-NEXT: movs r1, #0
+; CHECK-8MBASE-NEXT: mov r0, r2
+; CHECK-8MBASE-NEXT: pop {r4, r5, r7, pc}
+; CHECK-8MBASE-NEXT: .LBB7_5:
+; CHECK-8MBASE-NEXT: rsbs r2, r0, #0
+; CHECK-8MBASE-NEXT: ands r2, r0
+; CHECK-8MBASE-NEXT: muls r2, r5, r2
+; CHECK-8MBASE-NEXT: lsrs r2, r2, #27
+; CHECK-8MBASE-NEXT: ldrb r2, [r4, r2]
+; CHECK-8MBASE-NEXT: cmp r1, #0
+; CHECK-8MBASE-NEXT: beq .LBB7_2
+; CHECK-8MBASE-NEXT: .LBB7_6:
+; CHECK-8MBASE-NEXT: rsbs r3, r1, #0
+; CHECK-8MBASE-NEXT: ands r3, r1
+; CHECK-8MBASE-NEXT: muls r5, r3, r5
+; CHECK-8MBASE-NEXT: lsrs r1, r5, #27
+; CHECK-8MBASE-NEXT: ldrb r3, [r4, r1]
+; CHECK-8MBASE-NEXT: cmp r0, #0
+; CHECK-8MBASE-NEXT: beq .LBB7_3
+; CHECK-8MBASE-NEXT: b .LBB7_4
+; CHECK-8MBASE-NEXT: .p2align 2
+; CHECK-8MBASE-NEXT: @ %bb.7:
+; CHECK-8MBASE-NEXT: .LCPI7_0:
+; CHECK-8MBASE-NEXT: .ascii "\000\001\034\002\035\016\030\003\036\026\024\017\031\021\004\b\037\033\r\027\025\023\020\007\032\f\022\006\013\005\n\t"
%tmp = call i64 @llvm.cttz.i64(i64 %a, i1 true)
ret i64 %tmp
}
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