80 lines
2.9 KiB
LLVM
80 lines
2.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=slp-vectorizer -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7 | FileCheck %s
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; Check if the SLPVectorizer does not crash when handling
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; unreachable blocks with unscheduleable instructions.
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.9.0"
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define void @foo(i32* nocapture %x) #0 {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[BB2:%.*]]
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; CHECK: bb1:
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; CHECK-NEXT: [[BAD:%.*]] = fadd float [[BAD]], 0.000000e+00
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; CHECK-NEXT: br label [[BB2]]
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; CHECK: bb2:
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; CHECK-NEXT: [[TMP0:%.*]] = phi <4 x i32> [ poison, [[BB1:%.*]] ], [ <i32 2, i32 2, i32 2, i32 2>, [[ENTRY:%.*]] ]
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; CHECK-NEXT: [[TMP1:%.*]] = bitcast i32* [[X:%.*]] to <4 x i32>*
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; CHECK-NEXT: store <4 x i32> [[TMP0]], <4 x i32>* [[TMP1]], align 4
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; CHECK-NEXT: ret void
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;
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entry:
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br label %bb2
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bb1: ; an unreachable block
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%t3 = getelementptr inbounds i32, i32* %x, i64 4
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%t4 = load i32, i32* %t3, align 4
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%t5 = getelementptr inbounds i32, i32* %x, i64 5
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%t6 = load i32, i32* %t5, align 4
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%bad = fadd float %bad, 0.000000e+00 ; <- an instruction with self dependency,
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; but legal in unreachable code
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%t7 = getelementptr inbounds i32, i32* %x, i64 6
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%t8 = load i32, i32* %t7, align 4
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%t9 = getelementptr inbounds i32, i32* %x, i64 7
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%t10 = load i32, i32* %t9, align 4
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br label %bb2
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bb2:
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%t1.0 = phi i32 [ %t4, %bb1 ], [ 2, %entry ]
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%t2.0 = phi i32 [ %t6, %bb1 ], [ 2, %entry ]
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%t3.0 = phi i32 [ %t8, %bb1 ], [ 2, %entry ]
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%t4.0 = phi i32 [ %t10, %bb1 ], [ 2, %entry ]
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store i32 %t1.0, i32* %x, align 4
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%t12 = getelementptr inbounds i32, i32* %x, i64 1
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store i32 %t2.0, i32* %t12, align 4
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%t13 = getelementptr inbounds i32, i32* %x, i64 2
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store i32 %t3.0, i32* %t13, align 4
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%t14 = getelementptr inbounds i32, i32* %x, i64 3
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store i32 %t4.0, i32* %t14, align 4
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ret void
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}
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define void @bar() {
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; CHECK-LABEL: @bar(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: [[TMP:%.*]] = load atomic i8*, i8** undef unordered, align 8
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; CHECK-NEXT: br label [[BB6:%.*]]
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; CHECK: bb5:
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; CHECK-NEXT: [[TMP4:%.*]] = load atomic i8*, i8** undef unordered, align 8
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; CHECK-NEXT: br label [[BB6]]
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; CHECK: bb6:
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; CHECK-NEXT: [[TMP7:%.*]] = phi i8* [ [[TMP]], [[BB5:%.*]] ], [ undef, [[BB:%.*]] ]
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; CHECK-NEXT: [[TMP8:%.*]] = phi i8* [ [[TMP4]], [[BB5]] ], [ undef, [[BB]] ]
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; CHECK-NEXT: ret void
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;
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bb:
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%tmp = load atomic i8*, i8** undef unordered, align 8
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br label %bb6
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bb5: ; No predecessors!
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%tmp4 = load atomic i8*, i8** undef unordered, align 8
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br label %bb6
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bb6: ; preds = %bb5, %bb
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%tmp7 = phi i8* [ %tmp, %bb5 ], [ undef, %bb ]
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%tmp8 = phi i8* [ %tmp4, %bb5 ], [ undef, %bb ]
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ret void
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}
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