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