forked from OSchip/llvm-project
33 lines
767 B
LLVM
33 lines
767 B
LLVM
; RUN: opt %loadPolly \
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; RUN: -polly-codegen -S < %s | FileCheck %s
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; This test ensures that the expression N + 1 that is stored in the phi-node
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; alloca, is directly computed and not incorrectly transfered through memory.
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; CHECK: store i64 [[REG:%.*]], i64* %res.phiops
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; CHECK: [[REG]] = add i64 %N, 1
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define i64 @foo(float* %A, i64 %N) {
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entry:
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br label %next
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next:
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%cond = icmp eq i64 %N, 0
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br i1 %cond, label %loop, label %merge
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loop:
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%indvar = phi i64 [0, %next], [%indvar.next, %loop]
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%indvar.next = add i64 %indvar, 1
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%sum = add i64 %N, 1
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store float 4.0, float* %A
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%cmp = icmp sle i64 %indvar.next, 100
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br i1 %cmp, label %loop, label %merge
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merge:
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%res = phi i64 [%sum, %loop], [0, %next]
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br label %exit
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exit:
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ret i64 %res
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}
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