# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=thumbv8.1m.main-none-eabi -mattr=+mve -simplify-mir -run-pass=phi-node-elimination %s -o - | FileCheck %s
# RUN: llc -mtriple=thumbv8.1m.main-none-eabi -mattr=+mve -simplify-mir --passes=phi-node-elimination %s -o - | FileCheck %s
--- |
; ModuleID = '<stdin>'
target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "arm-arm-none-eabi"
; Function Attrs: nofree norecurse nounwind
define void @test(ptr noalias nocapture %X, ptr noalias nocapture readonly %Y, i32 %n) {
entry:
%cmp6 = icmp sgt i32 %n, 0
br i1 %cmp6, label %for.body.preheader, label %for.cond.cleanup
for.body.preheader: ; preds = %entry
call void @llvm.memcpy.p0.p0.i32(ptr align 4 %X, ptr align 4 %Y, i32 %n, i1 false)
br label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.body.preheader, %entry
ret void
}
; Function Attrs: argmemonly nofree nosync nounwind willreturn
declare void @llvm.memcpy.p0.p0.i32(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i32, i1 immarg)
...
---
name: test
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: test
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x50000000), %bb.3(0x30000000)
; CHECK: liveins: $r0, $r1, $r2
; CHECK: [[COPY:%[0-9]+]]:rgpr = COPY killed $r2
; CHECK: [[COPY1:%[0-9]+]]:rgpr = COPY killed $r1
; CHECK: [[COPY2:%[0-9]+]]:rgpr = COPY killed $r0
; CHECK: t2CMPri [[COPY]], 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK: t2Bcc %bb.3, 11 /* CC::lt */, killed $cpsr
; CHECK: t2B %bb.1, 14 /* CC::al */, $noreg
; CHECK: bb.1.for.body.preheader:
; CHECK: [[t2ADDri:%[0-9]+]]:rgpr = t2ADDri [[COPY]], 15, 14 /* CC::al */, $noreg, $noreg
; CHECK: [[t2BICri:%[0-9]+]]:rgpr = t2BICri killed [[t2ADDri]], 16, 14 /* CC::al */, $noreg, $noreg
; CHECK: [[t2LSRri:%[0-9]+]]:gprlr = t2LSRri killed [[t2BICri]], 4, 14 /* CC::al */, $noreg, $noreg
; CHECK: [[COPY3:%[0-9]+]]:rgpr = COPY [[COPY1]]
; CHECK: [[COPY4:%[0-9]+]]:rgpr = COPY [[COPY2]]
; CHECK: [[COPY5:%[0-9]+]]:rgpr = COPY [[COPY]]
; CHECK: [[t2WhileLoopStartLR:%[0-9]+]]:gprlr = t2WhileLoopStartLR killed [[t2LSRri]], %bb.3, implicit-def dead $cpsr
; CHECK: bb.2:
; CHECK: [[COPY6:%[0-9]+]]:rgpr = COPY [[COPY5]]
; CHECK: [[COPY7:%[0-9]+]]:gprlr = COPY [[t2WhileLoopStartLR]]
; CHECK: [[COPY8:%[0-9]+]]:rgpr = COPY [[COPY4]]
; CHECK: [[COPY9:%[0-9]+]]:rgpr = COPY [[COPY3]]
; CHECK: [[MVE_VCTP8_:%[0-9]+]]:vccr = MVE_VCTP8 [[COPY6]], 0, $noreg, $noreg
; CHECK: [[t2SUBri:%[0-9]+]]:rgpr = t2SUBri killed [[COPY6]], 16, 14 /* CC::al */, $noreg, $noreg
; CHECK: [[MVE_VLDRBU8_post:%[0-9]+]]:rgpr, [[MVE_VLDRBU8_post1:%[0-9]+]]:mqpr = MVE_VLDRBU8_post killed [[COPY9]], 16, 1, [[MVE_VCTP8_]], $noreg
; CHECK: [[MVE_VSTRBU8_post:%[0-9]+]]:rgpr = MVE_VSTRBU8_post killed [[MVE_VLDRBU8_post1]], killed [[COPY8]], 16, 1, killed [[MVE_VCTP8_]], $noreg
; CHECK: [[COPY10:%[0-9]+]]:rgpr = COPY [[MVE_VLDRBU8_post]]
; CHECK: [[COPY10:%[0-9]+]]:rgpr = COPY [[MVE_VSTRBU8_post]]
; CHECK: [[COPY10:%[0-9]+]]:rgpr = COPY [[t2SUBri]]
; CHECK: [[t2LoopEndDec:%[0-9]+]]:gprlr = t2LoopEndDec killed [[COPY7]], %bb.2, implicit-def dead $cpsr
; CHECK: t2B %bb.3, 14 /* CC::al */, $noreg
; CHECK: bb.3.for.cond.cleanup:
; CHECK: tBX_RET 14 /* CC::al */, $noreg
bb.0.entry:
successors: %bb.1(0x50000000), %bb.3(0x30000000)
liveins: $r0, $r1, $r2
%2:rgpr = COPY killed $r2
%1:rgpr = COPY killed $r1
%0:rgpr = COPY killed $r0
t2CMPri %2, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
t2Bcc %bb.3, 11 /* CC::lt */, killed $cpsr
t2B %bb.1, 14 /* CC::al */, $noreg
bb.1.for.body.preheader:
successors: %bb.3(0x40000000), %bb.2(0x40000000)
%3:rgpr = t2ADDri %2, 15, 14 /* CC::al */, $noreg, $noreg
%4:rgpr = t2BICri killed %3, 16, 14 /* CC::al */, $noreg, $noreg
%5:gprlr = t2LSRri killed %4, 4, 14 /* CC::al */, $noreg, $noreg
%6:gprlr = t2WhileLoopStartLR killed %5, %bb.3, implicit-def dead $cpsr
bb.2:
successors: %bb.2(0x40000000), %bb.3(0x40000000)
%7:rgpr = PHI %1, %bb.1, %8, %bb.2
%9:rgpr = PHI %0, %bb.1, %10, %bb.2
%11:gprlr = PHI %6, %bb.1, %12, %bb.2
%13:rgpr = PHI %2, %bb.1, %14, %bb.2
%15:vccr = MVE_VCTP8 %13, 0, $noreg, $noreg
%14:rgpr = t2SUBri killed %13, 16, 14 /* CC::al */, $noreg, $noreg
%8:rgpr, %16:mqpr = MVE_VLDRBU8_post killed %7, 16, 1, %15, $noreg
%10:rgpr = MVE_VSTRBU8_post killed %16, killed %9, 16, 1, killed %15, $noreg
%12:gprlr = t2LoopEndDec killed %11, %bb.2, implicit-def dead $cpsr
t2B %bb.3, 14 /* CC::al */, $noreg
bb.3.for.cond.cleanup:
tBX_RET 14 /* CC::al */, $noreg
...
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