6408703de5
When Polly generates a false runtime condition (RTC), the associated Polly generated loop is never executed and is eventually eliminated. As a result, the fallback loop becomes the default execution path. Disabling vectorization for this fallback loop will be counterproductive. This patch ensures that vectorization is only disabled when the RTC is not false (no Codegen failure).
29 lines
1.0 KiB
LLVM
29 lines
1.0 KiB
LLVM
; RUN: opt %loadNPMPolly -S -passes=polly-codegen -polly-annotate-metadata-vectorize < %s | FileCheck %s
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; RUN: opt %loadNPMPolly -S -passes=polly-codegen < %s | FileCheck %s
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; Verify vectorization is not disabled when RTC of Polly is false
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; CHECK: attributes {{.*}} = { "polly-optimized" }
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; CHECK-NOT: {{.*}} = !{!"llvm.loop.vectorize.enable", i32 0}
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32"
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target triple = "aarch64-unknown-linux-android10000"
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define void @ham(i64 %arg) {
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bb:
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br label %bb1
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bb1: ; preds = %bb3, %bb
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%phi = phi ptr [ %getelementptr4, %bb3 ], [ null, %bb ]
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br label %bb2
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bb2: ; preds = %bb2, %bb1
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%getelementptr = getelementptr i8, ptr %phi, i64 1
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store i8 0, ptr %getelementptr, align 1
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br i1 false, label %bb2, label %bb3
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bb3: ; preds = %bb2
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%getelementptr4 = getelementptr i8, ptr %phi, i64 %arg
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br label %bb1
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}
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