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[X86] Add test case for PR15705

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306246 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Simon Pilgrim 2017-06-25 16:12:45 +00:00
parent 1e95676e58
commit d33969c6c7
1 changed files with 48 additions and 0 deletions
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test/CodeGen/X86/pr15705.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefix=X86
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=X64
define i32 @PR15705(i32 %x, i32 %a, i32 %b, i32 %c) #0 {
; X86-LABEL: PR15705:
; X86: # BB#0: # %entry
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: cmpl %ecx, %edx
; X86-NEXT: je .LBB0_4
; X86-NEXT: # BB#1: # %if.end
; X86-NEXT: cmpl %eax, %edx
; X86-NEXT: jne .LBB0_3
; X86-NEXT: # BB#2:
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: .LBB0_3: # %if.end
; X86-NEXT: movl %ecx, %eax
; X86-NEXT: .LBB0_4: # %return
; X86-NEXT: retl
;
; X64-LABEL: PR15705:
; X64: # BB#0: # %entry
; X64-NEXT: cmpl %esi, %edi
; X64-NEXT: je .LBB0_2
; X64-NEXT: # BB#1: # %if.end
; X64-NEXT: cmpl %edx, %edi
; X64-NEXT: cmovel %ecx, %esi
; X64-NEXT: movl %esi, %edx
; X64-NEXT: .LBB0_2: # %return
; X64-NEXT: movl %edx, %eax
; X64-NEXT: retq
entry:
%cmp = icmp eq i32 %x, %a
br i1 %cmp, label %return, label %if.end
if.end:
%cmp1 = icmp eq i32 %x, %b
%c.a = select i1 %cmp1, i32 %c, i32 %a
br label %return
return:
%retval.0 = phi i32 [ %b, %entry ], [ %c.a, %if.end ]
ret i32 %retval.0
}
attributes #0 = { nounwind readnone ssp "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }