4b3a878e8a
The patch sets the vectorization metadata to false for Polly's fallback loops. These are the loops executed when RTCs fail. This minimizes the multiple loop versioning carried out by Polly and subsequently by the Loop Vectorizer. --------- Co-authored-by: Michael Kruse <github@meinersbur.de>
45 lines
1.2 KiB
LLVM
45 lines
1.2 KiB
LLVM
; RUN: opt %loadNPMPolly '-passes=polly-import-jscop,polly-codegen' -polly-import-jscop-postfix=transformed -S < %s | FileCheck %s
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;
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; Partial write of an array access.
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;
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; for (int j = 0; j < n; j += 1)
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; A[0] = 42.0
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;
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define void @partial_write_array(i32 %n, ptr 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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store double 42.0, ptr %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: polly.stmt.body:
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; CHECK-NEXT: %1 = icmp sge i64 %polly.indvar, 5
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; CHECK-NEXT: %polly.Stmt_body_Write0.cond = icmp ne i1 %1, false
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; CHECK-NEXT: br i1 %polly.Stmt_body_Write0.cond, label %polly.stmt.body.Stmt_body_Write0.partial, label %polly.stmt.body.cont
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; CHECK: polly.stmt.body.Stmt_body_Write0.partial:
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; CHECK-NEXT: %polly.access.A = getelementptr double, ptr %A, i64 0
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; CHECK-NEXT: store double 4.200000e+01, ptr %polly.access.A, align 8, !alias.scope !2, !noalias !5
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; CHECK-NEXT: br label %polly.stmt.body.cont
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; CHECK: polly.stmt.body.cont:
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