a22d1c2225
This reverts commit e987ab11a6f3d3965ef26fc42c82db3e8b1d56f5. This broke premerge: 1. https://lab.llvm.org/staging/#/builders/192/builds/9521 2. https://github.com/llvm/llvm-project/actions/runs/19054182009 Notably this did not break inside the PR. Not exactly sure why. I realize that there is a lot of test churn here, but they're largely in polly where commit frequency is much lower, so a reapply of the patch should be clean.
42 lines
931 B
LLVM
42 lines
931 B
LLVM
; RUN: opt %loadNPMPolly -passes=polly-codegen -S < %s | FileCheck %s
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;
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; Verify that @llvm.memcpy does not get a !alias.scope annotation.
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; @llvm.memcpy takes two pointers, it is ambiguous to which the
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; annotation applies.
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;
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; for (int j = 0; j < n; j += 1) {
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; memcpy(A, B, 8);
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; }
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;
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declare void @llvm.memcpy.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i32, i1)
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define void @func(i32 %n, ptr noalias nonnull %A, ptr noalias nonnull %B) {
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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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call void @llvm.memcpy.p0.p0.i64(ptr nonnull %A, ptr %B, i64 8, i32 4, i1 false)
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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-LABEL: polly.start:
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; CHECK: call void @llvm.memcpy
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; CHECK-NOT: !alias.scope
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