47 lines
1.0 KiB
LLVM
47 lines
1.0 KiB
LLVM
; RUN: opt %loadPolly -polly-import-jscop -polly-import-jscop-postfix=transformed -polly-allow-nonaffine-loops -polly-simplify -analyze < %s | FileCheck %s -match-full-lines
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;
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; Do not remove the store in region_entry. It can be executed multiple times
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; due to being part of a non-affine loop.
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;
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define void @notredundant_region_loop(i32 %n, double* noalias nonnull %A) {
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entry:
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br label %for
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for:
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%j = phi i32 [0, %entry], [%j.inc, %inc]
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%j.cmp = icmp slt i32 %j, %n
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br i1 %j.cmp, label %body, label %exit
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body:
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%val = fadd double 21.0, 21.0
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br label %region_entry
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region_entry:
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store double %val, double* %A
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%sqr = mul i32 %j, %j
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%cmp = icmp eq i32 %sqr, 42
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br i1 %cmp, label %region_true, label %region_exit
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region_true:
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store double 0.0, double* %A
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br label %region_entry
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region_exit:
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br label %inc
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inc:
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%j.inc = add nuw nsw i32 %j, 1
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br label %for
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exit:
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br label %return
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return:
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ret void
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}
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; CHECK: SCoP could not be simplified
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