forked from OSchip/llvm-project
45 lines
1.2 KiB
LLVM
45 lines
1.2 KiB
LLVM
; RUN: opt %loadPolly -polly-codegen -S < %s | FileCheck %s
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;
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; llvm.org/PR25439
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; Scalar reloads in the generated entering block were not recognized as
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; dominating the subregion blocks when there were multiple entering nodes. This
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; resulted in values defined in there (here: %cond used in subregionB_entry) not
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; being copied. We check whether it is reusing the reloaded scalar.
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;
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; CHECK-LABEL: polly.stmt.subregionB_entry.exit:
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; CHECK: store i1 %polly.cond, i1* %cond.s2a
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;
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; CHECK-LABEL: polly.stmt.subregionB_entry.entry:
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; CHECK: %cond.s2a.reload = load i1, i1* %cond.s2a
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;
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; CHECK-LABEL: polly.stmt.subregionB_entry:
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; CHECK: br i1 %cond.s2a.reload
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define void @func(i32* %A) {
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entry:
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br label %subregionA_entry
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subregionA_entry:
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%cond = phi i1 [ false, %entry ], [ true, %subregionB_exit ]
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br i1 %cond, label %subregionA_if, label %subregionA_else
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subregionA_if:
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br label %subregionB_entry
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subregionA_else:
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br label %subregionB_entry
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subregionB_entry:
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store i32 0, i32* %A
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br i1 %cond, label %subregionB_if, label %subregionB_exit
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subregionB_if:
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br label %subregionB_exit
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subregionB_exit:
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br i1 false, label %subregionA_entry, label %return
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return:
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ret void
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}
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