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>
85 lines
3.5 KiB
LLVM
85 lines
3.5 KiB
LLVM
; RUN: opt %loadNPMPolly -passes=polly-codegen \
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; RUN: -polly-allow-nonaffine-branches -S -verify-dom-info \
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; RUN: < %s | FileCheck %s
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;
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; void f(float *A) {
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; for (int i = 0; i < 1024; i++)
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; if (A[i] == A[i - 1])
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; A[i]++;
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; A[i]++;
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; }
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;
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;
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; CHECK: polly.stmt.bb2:
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; CHECK: %[[offset:.*]] = shl nuw nsw i64 %polly.indvar, 2
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; CHECK: %scevgep[[R0:[0-9]*]] = getelementptr i8, ptr %A, i64 %[[offset]]
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; CHECK: %tmp3_p_scalar_ = load float, ptr %scevgep[[R0]], align 4, !alias.scope !2, !noalias !5
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; CHECK: %[[offset2:.*]] = shl nuw nsw i64 %polly.indvar, 2
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; CHECK: %scevgep[[R2:[0-9]*]] = getelementptr i8, ptr %scevgep{{[0-9]*}}, i64 %[[offset2]]
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; CHECK: %tmp6_p_scalar_ = load float, ptr %scevgep[[R2]], align 4, !alias.scope !2, !noalias !5
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; CHECK: %p_tmp7 = fcmp oeq float %tmp3_p_scalar_, %tmp6_p_scalar_
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; CHECK: br i1 %p_tmp7, label %polly.stmt.bb8, label %polly.stmt.bb12.[[R:[a-zA-Z_.0-9]*]]
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; CHECK: polly.stmt.bb8:
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; CHECK: %[[offset3:.*]] = shl nuw nsw i64 %polly.indvar, 2
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; CHECK: %scevgep[[R3:[0-9]*]] = getelementptr i8, ptr %A, i64 %[[offset3]]
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; CHECK: %tmp10_p_scalar_ = load float, ptr %scevgep[[R3]], align 4, !alias.scope !2, !noalias !5
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; CHECK: %p_tmp11 = fadd float %tmp10_p_scalar_, 1.000000e+00
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; CHECK: store float %p_tmp11, ptr %scevgep[[R3]], align 4, !alias.scope !2, !noalias !5
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; CHECK: br label %polly.stmt.bb12.[[R]]
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; CHECK: polly.stmt.bb12.[[R]]:
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; CHECK: br label %polly.stmt.bb12
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; CHECK: polly.stmt.bb12:
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; CHECK: %[[offset4:.*]] = shl nuw nsw i64 %polly.indvar, 2
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; CHECK: %scevgep[[R4:[0-9]*]] = getelementptr i8, ptr %A, i64 %[[offset4]]
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; CHECK: %tmp10b_p_scalar_ = load float, ptr %scevgep[[R4]], align 4, !alias.scope !2, !noalias !5
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; CHECK: %p_tmp11b = fadd float %tmp10b_p_scalar_, 1.000000e+00
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; CHECK: store float %p_tmp11b, ptr %scevgep[[R4]], align 4, !alias.scope !2, !noalias !5
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; CHECK: %polly.indvar_next = add nsw i64 %polly.indvar, 1
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; CHECK: %polly.loop_cond = icmp sle i64 %polly.indvar_next, 1023
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; CHECK: br i1 %polly.loop_cond, label %polly.loop_header, label %polly.loop_exit
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define void @f(ptr %A) {
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bb:
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br label %bb1
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bb1: ; preds = %bb13, %bb
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%indvars.iv = phi i64 [ %indvars.iv.next, %bb13 ], [ 0, %bb ]
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%exitcond = icmp ne i64 %indvars.iv, 1024
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br i1 %exitcond, label %bb2, label %bb14
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bb2: ; preds = %bb1
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%tmp = getelementptr inbounds float, ptr %A, i64 %indvars.iv
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%tmp3 = load float, ptr %tmp, align 4
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%tmp4 = add nsw i64 %indvars.iv, -1
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%tmp5 = getelementptr inbounds float, ptr %A, i64 %tmp4
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%tmp6 = load float, ptr %tmp5, align 4
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%tmp7 = fcmp oeq float %tmp3, %tmp6
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br i1 %tmp7, label %bb8, label %bb12
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bb8: ; preds = %bb2
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%tmp9 = getelementptr inbounds float, ptr %A, i64 %indvars.iv
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%tmp10 = load float, ptr %tmp9, align 4
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%tmp11 = fadd float %tmp10, 1.000000e+00
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store float %tmp11, ptr %tmp9, align 4
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br label %bb12
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bb12: ; preds = %bb8, %bb2
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%tmp9b = getelementptr inbounds float, ptr %A, i64 %indvars.iv
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%tmp10b = load float, ptr %tmp9b, align 4
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%tmp11b = fadd float %tmp10b, 1.000000e+00
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store float %tmp11b, ptr %tmp9b, align 4
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br label %bb13
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bb13: ; preds = %bb12
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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br label %bb1
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bb14: ; preds = %bb1
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ret void
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}
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