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44a167c056
Summary: The combine in rebuildSetCC may be combined to another node leaving our references stale. Keep a handle on it to avoid stale references. Fixes PR36602. Reviewers: dbabokin, RKSimon, eli.friedman, davide Subscribers: hiraditya, uabelho, JesperAntonsson, qcolombet, llvm-commits Differential Revision: https://reviews.llvm.org/D46404 llvm-svn: 331985
31 lines
810 B
LLVM
31 lines
810 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
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define i32 @fn2() {
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; CHECK-LABEL: fn2:
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; CHECK: # %bb.0:
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: testb %al, %al
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; CHECK-NEXT: jne .LBB0_2
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; CHECK-NEXT: # %bb.1: # %bb1
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: retq
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; CHECK-NEXT: .LBB0_2: # %bb2
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; CHECK-NEXT: movl $1, %eax
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; CHECK-NEXT: retq
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%_tmp10 = icmp eq i8 0, 0
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%_tmp13 = icmp slt i8 undef, 1
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%_tmp151 = or i1 %_tmp10, %_tmp13
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%_tmp15 = zext i1 %_tmp151 to i8
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br i1 %_tmp151, label %bb1, label %bb2
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bb1: ; preds = %0, %0
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ret i32 0
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bb2: ; preds = %0, %0
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ret i32 1
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}
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