| ; RUN: llc < %s -O0 -mtriple=x86_64-unknown-unknown -mcpu=corei7 -verify-machineinstrs -show-mc-encoding | FileCheck %s --check-prefix X64 | |
| ; RUN: llc < %s -O0 -mtriple=i386-unknown-unknown -mcpu=corei7 -verify-machineinstrs | FileCheck %s --check-prefix X32 | |
| @sc16 = external global i16 | |
| define void @atomic_fetch_add16() nounwind { | |
| ; X64-LABEL: atomic_fetch_add16 | |
| ; X32-LABEL: atomic_fetch_add16 | |
| entry: | |
| ; 32-bit | |
| %t1 = atomicrmw add i16* @sc16, i16 1 acquire | |
| ; X64: lock | |
| ; X64: incw | |
| ; X32: lock | |
| ; X32: incw | |
| %t2 = atomicrmw add i16* @sc16, i16 3 acquire | |
| ; X64: lock | |
| ; X64: addw $3, {{.*}} # encoding: [0x66,0xf0 | |
| ; X32: lock | |
| ; X32: addw $3 | |
| %t3 = atomicrmw add i16* @sc16, i16 5 acquire | |
| ; X64: lock | |
| ; X64: xaddw {{.*}} # encoding: [0x66,0xf0 | |
| ; X32: lock | |
| ; X32: xaddw | |
| %t4 = atomicrmw add i16* @sc16, i16 %t3 acquire | |
| ; X64: lock | |
| ; X64: addw {{.*}} # encoding: [0x66,0xf0 | |
| ; X32: lock | |
| ; X32: addw | |
| ret void | |
| ; X64: ret | |
| ; X32: ret | |
| } | |
| define void @atomic_fetch_sub16() nounwind { | |
| ; X64-LABEL: atomic_fetch_sub16 | |
| ; X32-LABEL: atomic_fetch_sub16 | |
| %t1 = atomicrmw sub i16* @sc16, i16 1 acquire | |
| ; X64: lock | |
| ; X64: decw | |
| ; X32: lock | |
| ; X32: decw | |
| %t2 = atomicrmw sub i16* @sc16, i16 3 acquire | |
| ; X64: lock | |
| ; X64: subw $3, {{.*}} # encoding: [0x66,0xf0 | |
| ; X32: lock | |
| ; X32: subw $3 | |
| %t3 = atomicrmw sub i16* @sc16, i16 5 acquire | |
| ; X64: lock | |
| ; X64: xaddw {{.*}} # encoding: [0x66,0xf0 | |
| ; X32: lock | |
| ; X32: xaddw | |
| %t4 = atomicrmw sub i16* @sc16, i16 %t3 acquire | |
| ; X64: lock | |
| ; X64: subw {{.*}} # encoding: [0x66,0xf0 | |
| ; X32: lock | |
| ; X32: subw | |
| ret void | |
| ; X64: ret | |
| ; X32: ret | |
| } | |
| define void @atomic_fetch_and16() nounwind { | |
| ; X64-LABEL: atomic_fetch_and16 | |
| ; X32-LABEL: atomic_fetch_and16 | |
| %t1 = atomicrmw and i16* @sc16, i16 3 acquire | |
| ; X64: lock | |
| ; X64: andw $3, {{.*}} # encoding: [0x66,0xf0 | |
| ; X32: lock | |
| ; X32: andw $3 | |
| %t2 = atomicrmw and i16* @sc16, i16 5 acquire | |
| ; X64: andl | |
| ; X64: lock | |
| ; X64: cmpxchgw | |
| ; X32: andl | |
| ; X32: lock | |
| ; X32: cmpxchgw | |
| %t3 = atomicrmw and i16* @sc16, i16 %t2 acquire | |
| ; X64: lock | |
| ; X64: andw {{.*}} # encoding: [0x66,0xf0 | |
| ; X32: lock | |
| ; X32: andw | |
| ret void | |
| ; X64: ret | |
| ; X32: ret | |
| } | |
| define void @atomic_fetch_or16() nounwind { | |
| ; X64-LABEL: atomic_fetch_or16 | |
| ; X32-LABEL: atomic_fetch_or16 | |
| %t1 = atomicrmw or i16* @sc16, i16 3 acquire | |
| ; X64: lock | |
| ; X64: orw $3, {{.*}} # encoding: [0x66,0xf0 | |
| ; X32: lock | |
| ; X32: orw $3 | |
| %t2 = atomicrmw or i16* @sc16, i16 5 acquire | |
| ; X64: orl | |
| ; X64: lock | |
| ; X64: cmpxchgw | |
| ; X32: orl | |
| ; X32: lock | |
| ; X32: cmpxchgw | |
| %t3 = atomicrmw or i16* @sc16, i16 %t2 acquire | |
| ; X64: lock | |
| ; X64: orw {{.*}} # encoding: [0x66,0xf0 | |
| ; X32: lock | |
| ; X32: orw | |
| ret void | |
| ; X64: ret | |
| ; X32: ret | |
| } | |
| define void @atomic_fetch_xor16() nounwind { | |
| ; X64-LABEL: atomic_fetch_xor16 | |
| ; X32-LABEL: atomic_fetch_xor16 | |
| %t1 = atomicrmw xor i16* @sc16, i16 3 acquire | |
| ; X64: lock | |
| ; X64: xorw $3, {{.*}} # encoding: [0x66,0xf0 | |
| ; X32: lock | |
| ; X32: xorw $3 | |
| %t2 = atomicrmw xor i16* @sc16, i16 5 acquire | |
| ; X64: xorl | |
| ; X64: lock | |
| ; X64: cmpxchgw | |
| ; X32: xorl | |
| ; X32: lock | |
| ; X32: cmpxchgw | |
| %t3 = atomicrmw xor i16* @sc16, i16 %t2 acquire | |
| ; X64: lock | |
| ; X64: xorw {{.*}} # encoding: [0x66,0xf0 | |
| ; X32: lock | |
| ; X32: xorw | |
| ret void | |
| ; X64: ret | |
| ; X32: ret | |
| } | |
| define void @atomic_fetch_nand16(i16 %x) nounwind { | |
| ; X64-LABEL: atomic_fetch_nand16 | |
| ; X32-LABEL: atomic_fetch_nand16 | |
| %t1 = atomicrmw nand i16* @sc16, i16 %x acquire | |
| ; X64: andl | |
| ; X64: notl | |
| ; X64: lock | |
| ; X64: cmpxchgw | |
| ; X32: andl | |
| ; X32: notl | |
| ; X32: lock | |
| ; X32: cmpxchgw | |
| ret void | |
| ; X64: ret | |
| ; X32: ret | |
| } | |
| define void @atomic_fetch_max16(i16 %x) nounwind { | |
| ; X64-LABEL: atomic_fetch_max16 | |
| ; X32-LABEL: atomic_fetch_max16 | |
| %t1 = atomicrmw max i16* @sc16, i16 %x acquire | |
| ; X64: movw | |
| ; X64: movw | |
| ; X64: subw | |
| ; X64: cmov | |
| ; X64: lock | |
| ; X64: cmpxchgw | |
| ; X32: movw | |
| ; X32: movw | |
| ; X32: subw | |
| ; X32: cmov | |
| ; X32: lock | |
| ; X32: cmpxchgw | |
| ret void | |
| ; X64: ret | |
| ; X32: ret | |
| } | |
| define void @atomic_fetch_min16(i16 %x) nounwind { | |
| ; X64-LABEL: atomic_fetch_min16 | |
| ; X32-LABEL: atomic_fetch_min16 | |
| %t1 = atomicrmw min i16* @sc16, i16 %x acquire | |
| ; X64: movw | |
| ; X64: movw | |
| ; X64: subw | |
| ; X64: cmov | |
| ; X64: lock | |
| ; X64: cmpxchgw | |
| ; X32: movw | |
| ; X32: movw | |
| ; X32: subw | |
| ; X32: cmov | |
| ; X32: lock | |
| ; X32: cmpxchgw | |
| ret void | |
| ; X64: ret | |
| ; X32: ret | |
| } | |
| define void @atomic_fetch_umax16(i16 %x) nounwind { | |
| ; X64-LABEL: atomic_fetch_umax16 | |
| ; X32-LABEL: atomic_fetch_umax16 | |
| %t1 = atomicrmw umax i16* @sc16, i16 %x acquire | |
| ; X64: movw | |
| ; X64: movw | |
| ; X64: subw | |
| ; X64: cmov | |
| ; X64: lock | |
| ; X64: cmpxchgw | |
| ; X32: movw | |
| ; X32: movw | |
| ; X32: subw | |
| ; X32: cmov | |
| ; X32: lock | |
| ; X32: cmpxchgw | |
| ret void | |
| ; X64: ret | |
| ; X32: ret | |
| } | |
| define void @atomic_fetch_umin16(i16 %x) nounwind { | |
| ; X64-LABEL: atomic_fetch_umin16 | |
| ; X32-LABEL: atomic_fetch_umin16 | |
| %t1 = atomicrmw umin i16* @sc16, i16 %x acquire | |
| ; X64: movw | |
| ; X64: movw | |
| ; X64: subw | |
| ; X64: cmov | |
| ; X64: lock | |
| ; X64: cmpxchgw | |
| ; X32: movw | |
| ; X32: movw | |
| ; X32: subw | |
| ; X32: cmov | |
| ; X32: lock | |
| ; X32: cmpxchgw | |
| ret void | |
| ; X64: ret | |
| ; X32: ret | |
| } | |
| define void @atomic_fetch_cmpxchg16() nounwind { | |
| %t1 = cmpxchg i16* @sc16, i16 0, i16 1 acquire acquire | |
| ; X64: lock | |
| ; X64: cmpxchgw | |
| ; X32: lock | |
| ; X32: cmpxchgw | |
| ret void | |
| ; X64: ret | |
| ; X32: ret | |
| } | |
| define void @atomic_fetch_store16(i16 %x) nounwind { | |
| store atomic i16 %x, i16* @sc16 release, align 4 | |
| ; X64-NOT: lock | |
| ; X64: movw | |
| ; X32-NOT: lock | |
| ; X32: movw | |
| ret void | |
| ; X64: ret | |
| ; X32: ret | |
| } | |
| define void @atomic_fetch_swap16(i16 %x) nounwind { | |
| %t1 = atomicrmw xchg i16* @sc16, i16 %x acquire | |
| ; X64-NOT: lock | |
| ; X64: xchgw | |
| ; X32-NOT: lock | |
| ; X32: xchgw | |
| ret void | |
| ; X64: ret | |
| ; X32: ret | |
| } |