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db6adcba1e
While promoting nodes in PPCTargetLowering::DAGCombineExtBoolTrunc, it is possible for one of the nodes to be replaced by another. To make sure we do not visit the deleted nodes, and to make sure we visit the replacement nodes, use a list of HandleSDNodes to track the to-be-promoted nodes during the promotion process. The same fix has been applied to the analogous code in PPCTargetLowering::DAGCombineTruncBoolExt. Fixes PR26985. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269272 91177308-0d34-0410-b5e6-96231b3b80d8
39 lines
4.2 KiB
LLVM
39 lines
4.2 KiB
LLVM
; RUN: llc -O0 < %s | FileCheck %s
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target datalayout = "e-m:e-i64:64-n32:64"
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target triple = "powerpc64le-unknown-linux-gnu"
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@c = external global i32, align 4
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@d = external global [2 x i32], align 4
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; Function Attrs: norecurse nounwind
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define void @fn2() #0 {
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; CHECK-LABEL: @fn2
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br i1 undef, label %1, label %10
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; <label>:1: ; preds = %0
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br i1 undef, label %3, label %2
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; <label>:2: ; preds = %2, %1
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br i1 undef, label %3, label %2
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; <label>:3: ; preds = %2, %1
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br i1 undef, label %8, label %4
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; <label>:4: ; preds = %4, %3
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%5 = phi i64 [ %6, %4 ], [ undef, %3 ]
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%6 = and i64 %5, and (i64 and (i64 and (i64 and (i64 and (i64 and (i64 and (i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i16), i16 0), i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 lshr (i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 6)) to i64), i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i16), i16 0), i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 lshr (i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 6)) to i64)), i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i16), i16 0), i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 lshr (i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 6)) to i64)), i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i16), i16 0), i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 lshr (i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 6)) to i64)), i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i16), i16 0), i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 lshr (i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 6)) to i64)), i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i16), i16 0), i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 lshr (i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 6)) to i64)), i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i16), i16 0), i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 lshr (i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 6)) to i64)), i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i16), i16 0), i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 lshr (i32 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32], [2 x i32]* @d, i64 0, i64 1), i32* @c) to i32), i32 6)) to i64))
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%7 = icmp slt i32 undef, 6
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br i1 %7, label %4, label %8
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; <label>:8: ; preds = %4, %3
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%9 = phi i64 [ undef, %3 ], [ %6, %4 ]
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br label %10
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; <label>:10: ; preds = %8, %0
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ret void
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}
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attributes #0 = { norecurse nounwind "target-cpu"="ppc64le" }
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