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>
44 lines
1.6 KiB
LLVM
44 lines
1.6 KiB
LLVM
;RUN: opt %loadNPMPolly '-passes=polly-import-jscop,polly-codegen' -polly-import-jscop-postfix=transformed < %s -S | FileCheck %s
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;int A[100];
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;
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;int codegen_simple () {
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; for (int i = 0; i < 12; i++)
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; A[13] = A[i] + A[i-1];
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;
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; return 0;
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;}
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32"
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define i32 @codegen_simple(ptr addrspace(5) %A) nounwind {
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entry:
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%arrayidx.write = getelementptr [100 x i32], ptr addrspace(5) %A, i32 0, i32 13
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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%tmp1 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
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%tmp = add i32 %tmp1, -1
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%arrayidx4 = getelementptr [100 x i32], ptr addrspace(5) %A, i32 0, i32 %tmp
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%arrayidx = getelementptr [100 x i32], ptr addrspace(5) %A, i32 0, i32 %tmp1
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%exitcond = icmp ne i32 %tmp1, 12
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br i1 %exitcond, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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%tmp2 = load i32, ptr addrspace(5) %arrayidx, align 4
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%tmp5 = load i32, ptr addrspace(5) %arrayidx4, align 4
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%add = add nsw i32 %tmp2, %tmp5
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store i32 %add, ptr addrspace(5) %arrayidx.write
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br label %for.inc
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for.inc: ; preds = %for.body
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%inc = add nsw i32 %tmp1, 1
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br label %for.cond
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for.end: ; preds = %for.cond
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ret i32 0
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}
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; CHECK: %polly.access.A = getelementptr i32, ptr addrspace(5) %A, i64 0
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; CHECK: %tmp2_p_scalar_ = load i32, ptr addrspace(5) %polly.access.A, align 4, !alias.scope !2, !noalias !5
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