| ; RUN: llc < %s -mtriple=armv7-apple-darwin -verify-machineinstrs | FileCheck %s -check-prefix=ARM | |
| ; RUN: llc < %s -mtriple=thumbv7-apple-darwin -verify-machineinstrs | FileCheck %s -check-prefix=T2 | |
| ; rdar://8964854 | |
| define i8 @t(i8* %a, i8 %b, i8 %c) nounwind { | |
| ; ARM-LABEL: t: | |
| ; ARM: ldrexb | |
| ; ARM: strexb | |
| ; ARM: clrex | |
| ; T2-LABEL: t: | |
| ; T2: ldrexb | |
| ; T2: strexb | |
| ; T2: clrex | |
| %tmp0 = cmpxchg i8* %a, i8 %b, i8 %c monotonic monotonic | |
| %tmp1 = extractvalue { i8, i1 } %tmp0, 0 | |
| ret i8 %tmp1 | |
| } |