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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc < %s -mtriple=i386-pc-linux -mcpu=corei7 | FileCheck %s3 4define i64 @atomicSub(ptr %a, i64 %b) nounwind {5; CHECK-LABEL: atomicSub:6; CHECK: # %bb.0: # %entry7; CHECK-NEXT: pushl %ebp8; CHECK-NEXT: pushl %ebx9; CHECK-NEXT: pushl %edi10; CHECK-NEXT: pushl %esi11; CHECK-NEXT: movl {{[0-9]+}}(%esp), %esi12; CHECK-NEXT: movl {{[0-9]+}}(%esp), %edi13; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ebp14; CHECK-NEXT: movl (%ebp), %eax15; CHECK-NEXT: movl 4(%ebp), %edx16; CHECK-NEXT: .p2align 417; CHECK-NEXT: .LBB0_1: # %atomicrmw.start18; CHECK-NEXT: # =>This Inner Loop Header: Depth=119; CHECK-NEXT: movl %eax, %ebx20; CHECK-NEXT: subl %edi, %ebx21; CHECK-NEXT: movl %edx, %ecx22; CHECK-NEXT: sbbl %esi, %ecx23; CHECK-NEXT: lock cmpxchg8b (%ebp)24; CHECK-NEXT: jne .LBB0_125; CHECK-NEXT: # %bb.2: # %atomicrmw.end26; CHECK-NEXT: popl %esi27; CHECK-NEXT: popl %edi28; CHECK-NEXT: popl %ebx29; CHECK-NEXT: popl %ebp30; CHECK-NEXT: retl31entry:32 %0 = atomicrmw sub ptr %a, i64 %b seq_cst33 ret i64 %034}35