llvm-6502/test/CodeGen/PowerPC/atomic-1.ll
Mon P Wang 2887310630 Added MemOperands to Atomic operations since Atomics touches memory.
Added abstract class MemSDNode for any Node that have an associated MemOperand
Changed atomic.lcs => atomic.cmp.swap, atomic.las => atomic.load.add, and
atomic.lss => atomic.load.sub


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52706 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-25 08:15:39 +00:00

28 lines
931 B
LLVM

; RUN: llvm-as < %s | llc -march=ppc32 | grep lwarx | count 4
; RUN: llvm-as < %s | llc -march=ppc32 | grep stwcx. | count 4
define i32 @exchange_and_add(i32* %mem, i32 %val) nounwind {
%tmp = call i32 @llvm.atomic.load.add.i32( i32* %mem, i32 %val )
ret i32 %tmp
}
define i32 @exchange_and_cmp(i32* %mem) nounwind {
%tmp = call i32 @llvm.atomic.cmp.swap.i32( i32* %mem, i32 0, i32 1 )
ret i32 %tmp
}
define i16 @exchange_and_cmp16(i16* %mem) nounwind {
%tmp = call i16 @llvm.atomic.cmp.swap.i16( i16* %mem, i16 0, i16 1 )
ret i16 %tmp
}
define i32 @exchange(i32* %mem, i32 %val) nounwind {
%tmp = call i32 @llvm.atomic.swap.i32( i32* %mem, i32 1 )
ret i32 %tmp
}
declare i32 @llvm.atomic.load.add.i32(i32*, i32) nounwind
declare i32 @llvm.atomic.cmp.swap.i32(i32*, i32, i32) nounwind
declare i16 @llvm.atomic.cmp.swap.i16(i16*, i16, i16) nounwind
declare i32 @llvm.atomic.swap.i32(i32*, i32) nounwind