test/CodeGen/X86/memcmp-mergeexpand.ll

; 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

; This tests interaction between MergeICmp and ExpandMemCmp.

%"struct.std::pair" = type { i32, i32 }

define zeroext i1 @opeq1(
; X86-LABEL: opeq1:
; X86:       # %bb.0: # %"entry+land.rhs.i"
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl (%ecx), %edx
; X86-NEXT:    movl 4(%ecx), %ecx
; X86-NEXT:    xorl (%eax), %edx
; X86-NEXT:    xorl 4(%eax), %ecx
; X86-NEXT:    orl %edx, %ecx
; X86-NEXT:    sete %al
; X86-NEXT:    retl
;
; X64-LABEL: opeq1:
; X64:       # %bb.0: # %"entry+land.rhs.i"
; X64-NEXT:    movq (%rdi), %rax
; X64-NEXT:    cmpq (%rsi), %rax
; X64-NEXT:    sete %al
; X64-NEXT:    retq
  ptr nocapture readonly dereferenceable(8) %a,
  ptr nocapture readonly dereferenceable(8) %b) local_unnamed_addr nofree nosync {
entry:
  %0 = load i32, ptr %a, align 4
  %1 = load i32, ptr %b, align 4
  %cmp.i = icmp eq i32 %0, %1
  br i1 %cmp.i, label %land.rhs.i, label %opeq1.exit

land.rhs.i:
  %second.i = getelementptr inbounds %"struct.std::pair", ptr %a, i64 0, i32 1
  %2 = load i32, ptr %second.i, align 4
  %second2.i = getelementptr inbounds %"struct.std::pair", ptr %b, i64 0, i32 1
  %3 = load i32, ptr %second2.i, align 4
  %cmp3.i = icmp eq i32 %2, %3
  br label %opeq1.exit

opeq1.exit:
  %4 = phi i1 [ false, %entry ], [ %cmp3.i, %land.rhs.i ]
  ret i1 %4
}