forked from OSchip/llvm-project
50 lines
1006 B
LLVM
50 lines
1006 B
LLVM
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; RUN: opt %loadPolly -polly-import-jscop -polly-import-jscop-postfix=transformed -polly-simplify -analyze < %s | FileCheck %s -match-full-lines
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;
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; Remove redundant store (a store that writes the same value already
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; at the destination) in a region.
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;
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define void @redundant_region(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 %region_entry, label %exit
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region_entry:
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%val = load double, double* %A
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%cmp = fcmp oeq double %val, 0.0
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br i1 %cmp, label %region_true, label %region_exit
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region_true:
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br label %region_exit
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region_exit:
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br label %body
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body:
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store double %val, double* %A
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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: Statistics {
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; CHECK: Redundant writes removed: 2
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; CHECK: }
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; CHECK: After accesses {
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; CHECK-NEXT: }
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