1 ; RUN: llc < %s -mtriple=armv7-apple-darwin | FileCheck %s -check-prefix=ARM 2 ; RUN: llc < %s -mtriple=thumbv7-apple-darwin | FileCheck %s -check-prefix=T2 3 ; rdar://8964854 4 5 define i8 @t(i8* %a, i8 %b, i8 %c) nounwind { 6 ; ARM: t: 7 ; ARM: ldrexb 8 ; ARM: strexb 9 10 ; T2: t: 11 ; T2: ldrexb 12 ; T2: strexb 13 %tmp0 = tail call i8 @llvm.atomic.cmp.swap.i8.p0i8(i8* %a, i8 %b, i8 %c) 14 ret i8 %tmp0 15 } 16 17 declare i8 @llvm.atomic.cmp.swap.i8.p0i8(i8* nocapture, i8, i8) nounwind 18
