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https://github.com/c64scene-ar/llvm-6502.git
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8cb014fd01
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22700 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
657 B
LLVM
21 lines
657 B
LLVM
; Make sure that the compare instruction occurs after the increment to avoid
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; having overlapping live ranges that result in copies. We want the setcc instruction
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; immediately before the conditional branch.
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;
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; RUN: llvm-as < %s | opt -loop-reduce | llvm-dis | %prcontext 'br bool' 1 | grep set
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void %foo(float* %D, uint %E) {
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entry:
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br label %no_exit
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no_exit:
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%indvar = phi uint [ 0, %entry ], [ %indvar.next, %no_exit ]
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volatile store float 0.0, float* %D
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%indvar.next = add uint %indvar, 1 ; <uint> [#uses=2]
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%exitcond = seteq uint %indvar.next, %E ; <bool> [#uses=1]
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br bool %exitcond, label %loopexit, label %no_exit
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loopexit:
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ret void
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}
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