forked from OSchip/llvm-project
84 lines
3.3 KiB
YAML
84 lines
3.3 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -run-pass=t2-reduce-size %s -o - | FileCheck %s
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--- |
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "thumbv8m.main-arm-none-eabi"
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; Function Attrs: norecurse nounwind readnone
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define i32 @test(i32 %x, i32 %y) local_unnamed_addr #0 {
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entry:
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%cmp6 = icmp sgt i32 %y, 0
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br i1 %cmp6, label %for.body.preheader, label %for.cond.cleanup
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.cond.cleanup: ; preds = %for.body, %entry
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%sum.0.lcssa = phi i32 [ 1, %entry ], [ %mul, %for.body ]
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ret i32 %sum.0.lcssa
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for.body: ; preds = %for.body, %for.body.preheader
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%lsr.iv1 = phi i32 [ %lsr.iv.next2, %for.body ], [ %x, %for.body.preheader ]
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%lsr.iv = phi i32 [ %lsr.iv.next, %for.body ], [ %y, %for.body.preheader ]
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%sum.07 = phi i32 [ %mul, %for.body ], [ 1, %for.body.preheader ]
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%mul = mul nsw i32 %lsr.iv1, %sum.07
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%lsr.iv.next = add i32 %lsr.iv, -1
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%lsr.iv.next2 = add i32 %lsr.iv1, 1
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%exitcond = icmp eq i32 %lsr.iv.next, 0
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br i1 %exitcond, label %for.cond.cleanup, label %for.body
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}
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attributes #0 = { norecurse nounwind readnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="cortex-m7" "target-features"="-d32,+dsp,+fp-armv8,-fp64,+hwdiv,+strict-align,+thumb-mode,-crc,-dotprod,-hwdiv-arm,-ras" "unsafe-fp-math"="false" "use-soft-float"="false" }
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...
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---
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name: test
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tracksRegLiveness: true
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liveins:
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- { reg: '$r0', virtual-reg: '' }
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- { reg: '$r1', virtual-reg: '' }
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body: |
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; CHECK-LABEL: name: test
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; CHECK: bb.0.entry:
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; CHECK: successors: %bb.1(0x40000000), %bb.2(0x40000000)
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; CHECK: liveins: $r0, $r1
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; CHECK: $r2 = tMOVr $r0, 14, $noreg
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; CHECK: $r0, dead $cpsr = tMOVi8 1, 14, $noreg
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; CHECK: tCMPi8 $r1, 1, 14, $noreg, implicit-def $cpsr
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; CHECK: t2Bcc %bb.2, 11, killed $cpsr
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; CHECK: bb.1.for.body:
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; CHECK: successors: %bb.2(0x40000000), %bb.1(0x40000000)
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; CHECK: liveins: $r0, $r1, $r2
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; CHECK: $r0, dead $cpsr = tMUL $r2, killed $r0, 14, $noreg
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; CHECK: $r2, dead $cpsr = tADDi8 killed $r2, 1, 14, $noreg
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; CHECK: $r1, $cpsr = tSUBi8 killed $r1, 1, 14, $noreg
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; CHECK: t2Bcc %bb.1, 1, killed $cpsr
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; CHECK: bb.2.for.cond.cleanup:
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; CHECK: liveins: $r0
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; CHECK: tBX_RET 14, $noreg, implicit $r0
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bb.0.entry:
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successors: %bb.1.for.body, %bb.2.for.cond.cleanup
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liveins: $r0, $r1
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$r2 = tMOVr $r0, 14, _
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$r0 = t2MOVi 1, 14, _, _
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t2CMPri $r1, 1, 14, _, implicit-def $cpsr
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t2Bcc %bb.2.for.cond.cleanup, 11, killed $cpsr
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bb.1.for.body:
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successors: %bb.2.for.cond.cleanup, %bb.1.for.body
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liveins: $r0, $r1, $r2
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$r0 = t2MUL $r2, killed $r0, 14, _
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$r2 = t2ADDri killed $r2, 1, 14, _, _
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$r1 = t2SUBri killed $r1, 1, 14, _, def $cpsr
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t2Bcc %bb.1.for.body, 1, killed $cpsr
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bb.2.for.cond.cleanup:
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liveins: $r0
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tBX_RET 14, _, implicit $r0
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...
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