llvm/test/CodeGen/X86/pr152630.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s

define i32 @pr152630(i1 %cond) nounwind {
; CHECK-LABEL: pr152630:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    andl $1, %edi
; CHECK-NEXT:    decl %edi
; CHECK-NEXT:    cmpl $-1, %edi
; CHECK-NEXT:    je .LBB0_2
; CHECK-NEXT:  # %bb.1: # %entry
; CHECK-NEXT:    movzbl %dil, %eax
; CHECK-NEXT:    testl %eax, %eax
; CHECK-NEXT:    jne .LBB0_3
; CHECK-NEXT:  .LBB0_2: # %if.then
; CHECK-NEXT:    xorl %eax, %eax
; CHECK-NEXT:    retq
; CHECK-NEXT:  .LBB0_3: # %if.else
; CHECK-NEXT:    movl $1, %eax
; CHECK-NEXT:    retq
entry:
  %sel = select i1 %cond, i32 0, i32 -1
  %conv = trunc nsw i32 %sel to i8
  switch i8 %conv, label %if.else [
    i8 -1, label %if.then
    i8 0, label %if.then
  ]

if.then:
  ret i32 0

if.else:
  ret i32 1
}