| ; RUN: llc < %s -O0 -march=x86-64 -mcpu=corei7 -verify-machineinstrs | FileCheck %s -check-prefix=WITH-CMOV |
| ; RUN: llc < %s -O0 -march=x86 -mcpu=corei7 -verify-machineinstrs | FileCheck %s -check-prefix=WITH-CMOV |
| ; RUN: llc < %s -O0 -march=x86 -mcpu=corei7 -mattr=-cmov -verify-machineinstrs | FileCheck %s --check-prefix NOCMOV |
| |
| @sc32 = external global i32 |
| |
| define void @atomic_fetch_add32() nounwind { |
| ; WITH-CMOV-LABEL: atomic_fetch_add32: |
| entry: |
| ; 32-bit |
| %t1 = atomicrmw add i32* @sc32, i32 1 acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: incl |
| %t2 = atomicrmw add i32* @sc32, i32 3 acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: addl $3 |
| %t3 = atomicrmw add i32* @sc32, i32 5 acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: xaddl |
| %t4 = atomicrmw add i32* @sc32, i32 %t3 acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: addl |
| ret void |
| ; WITH-CMOV: ret |
| } |
| |
| define void @atomic_fetch_sub32() nounwind { |
| ; WITH-CMOV-LABEL: atomic_fetch_sub32: |
| %t1 = atomicrmw sub i32* @sc32, i32 1 acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: decl |
| %t2 = atomicrmw sub i32* @sc32, i32 3 acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: subl $3 |
| %t3 = atomicrmw sub i32* @sc32, i32 5 acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: xaddl |
| %t4 = atomicrmw sub i32* @sc32, i32 %t3 acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: subl |
| ret void |
| ; WITH-CMOV: ret |
| } |
| |
| define void @atomic_fetch_and32() nounwind { |
| ; WITH-CMOV-LABEL: atomic_fetch_and32: |
| %t1 = atomicrmw and i32* @sc32, i32 3 acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: andl $3 |
| %t2 = atomicrmw and i32* @sc32, i32 5 acquire |
| ; WITH-CMOV: andl |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: cmpxchgl |
| %t3 = atomicrmw and i32* @sc32, i32 %t2 acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: andl |
| ret void |
| ; WITH-CMOV: ret |
| } |
| |
| define void @atomic_fetch_or32() nounwind { |
| ; WITH-CMOV-LABEL: atomic_fetch_or32: |
| %t1 = atomicrmw or i32* @sc32, i32 3 acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: orl $3 |
| %t2 = atomicrmw or i32* @sc32, i32 5 acquire |
| ; WITH-CMOV: orl |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: cmpxchgl |
| %t3 = atomicrmw or i32* @sc32, i32 %t2 acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: orl |
| ret void |
| ; WITH-CMOV: ret |
| } |
| |
| define void @atomic_fetch_xor32() nounwind { |
| ; WITH-CMOV-LABEL: atomic_fetch_xor32: |
| %t1 = atomicrmw xor i32* @sc32, i32 3 acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: xorl $3 |
| %t2 = atomicrmw xor i32* @sc32, i32 5 acquire |
| ; WITH-CMOV: xorl |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: cmpxchgl |
| %t3 = atomicrmw xor i32* @sc32, i32 %t2 acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: xorl |
| ret void |
| ; WITH-CMOV: ret |
| } |
| |
| define void @atomic_fetch_nand32(i32 %x) nounwind { |
| ; WITH-CMOV-LABEL: atomic_fetch_nand32: |
| %t1 = atomicrmw nand i32* @sc32, i32 %x acquire |
| ; WITH-CMOV: andl |
| ; WITH-CMOV: notl |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: cmpxchgl |
| ret void |
| ; WITH-CMOV: ret |
| } |
| |
| define void @atomic_fetch_max32(i32 %x) nounwind { |
| ; WITH-CMOV-LABEL: atomic_fetch_max32: |
| |
| %t1 = atomicrmw max i32* @sc32, i32 %x acquire |
| ; WITH-CMOV: subl |
| ; WITH-CMOV: cmov |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: cmpxchgl |
| |
| ; NOCMOV: subl |
| ; NOCMOV: jge |
| ; NOCMOV: lock |
| ; NOCMOV: cmpxchgl |
| ret void |
| ; WITH-CMOV: ret |
| ; NOCMOV: ret |
| } |
| |
| define void @atomic_fetch_min32(i32 %x) nounwind { |
| ; WITH-CMOV-LABEL: atomic_fetch_min32: |
| ; NOCMOV-LABEL: atomic_fetch_min32: |
| |
| %t1 = atomicrmw min i32* @sc32, i32 %x acquire |
| ; WITH-CMOV: subl |
| ; WITH-CMOV: cmov |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: cmpxchgl |
| |
| ; NOCMOV: subl |
| ; NOCMOV: jle |
| ; NOCMOV: lock |
| ; NOCMOV: cmpxchgl |
| ret void |
| ; WITH-CMOV: ret |
| ; NOCMOV: ret |
| } |
| |
| define void @atomic_fetch_umax32(i32 %x) nounwind { |
| ; WITH-CMOV-LABEL: atomic_fetch_umax32: |
| ; NOCMOV-LABEL: atomic_fetch_umax32: |
| |
| %t1 = atomicrmw umax i32* @sc32, i32 %x acquire |
| ; WITH-CMOV: subl |
| ; WITH-CMOV: cmov |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: cmpxchgl |
| |
| ; NOCMOV: subl |
| ; NOCMOV: ja |
| ; NOCMOV: lock |
| ; NOCMOV: cmpxchgl |
| ret void |
| ; WITH-CMOV: ret |
| ; NOCMOV: ret |
| } |
| |
| define void @atomic_fetch_umin32(i32 %x) nounwind { |
| ; WITH-CMOV-LABEL: atomic_fetch_umin32: |
| ; NOCMOV-LABEL: atomic_fetch_umin32: |
| |
| %t1 = atomicrmw umin i32* @sc32, i32 %x acquire |
| ; WITH-CMOV: subl |
| ; WITH-CMOV: cmov |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: cmpxchgl |
| |
| ; NOCMOV: subl |
| ; NOCMOV: jb |
| ; NOCMOV: lock |
| ; NOCMOV: cmpxchgl |
| ret void |
| ; WITH-CMOV: ret |
| ; NOCMOV: ret |
| } |
| |
| define void @atomic_fetch_cmpxchg32() nounwind { |
| ; WITH-CMOV-LABEL: atomic_fetch_cmpxchg32: |
| |
| %t1 = cmpxchg i32* @sc32, i32 0, i32 1 acquire acquire |
| ; WITH-CMOV: lock |
| ; WITH-CMOV: cmpxchgl |
| ret void |
| ; WITH-CMOV: ret |
| } |
| |
| define void @atomic_fetch_store32(i32 %x) nounwind { |
| ; WITH-CMOV-LABEL: atomic_fetch_store32: |
| |
| store atomic i32 %x, i32* @sc32 release, align 4 |
| ; WITH-CMOV-NOT: lock |
| ; WITH-CMOV: movl |
| ret void |
| ; WITH-CMOV: ret |
| } |
| |
| define void @atomic_fetch_swap32(i32 %x) nounwind { |
| ; WITH-CMOV-LABEL: atomic_fetch_swap32: |
| |
| %t1 = atomicrmw xchg i32* @sc32, i32 %x acquire |
| ; WITH-CMOV-NOT: lock |
| ; WITH-CMOV: xchgl |
| ret void |
| ; WITH-CMOV: ret |
| } |