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Because the initial-value constants had not been added to the list of instructions considered for DCE the resulting code had redundant constant-materialization instructions. llvm-svn: 177294
26 lines
1.0 KiB
LLVM
26 lines
1.0 KiB
LLVM
; RUN: llc < %s -mcpu=a2 | FileCheck %s
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target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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define void @main() #0 {
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entry:
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br i1 undef, label %for.end, label %for.body
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for.body: ; preds = %for.body, %entry
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 1, %entry ]
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%indvars.iv.next = add i64 %indvars.iv, 1
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32
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%exitcond = icmp eq i32 %lftr.wideiv, 5
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br i1 %exitcond, label %for.end, label %for.body
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; CHECK: @main
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; CHECK: li {{[0-9]+}}, 4
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; CHECK-NOT: li {{[0-9]+}}, 4
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; CHECK: bdnz
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for.end: ; preds = %for.body, %entry
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ret void
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}
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attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
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