; 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 { %t1 = atomicrmw max i16* @sc16, i16 %x acquire ; X64: movswl ; X64: movswl ; X64: subl ; X64: cmov ; X64: lock ; X64: cmpxchgw ; X32: movswl ; X32: movswl ; X32: subl ; X32: cmov ; X32: lock ; X32: cmpxchgw ret void ; X64: ret ; X32: ret } define void @atomic_fetch_min16(i16 %x) nounwind { %t1 = atomicrmw min i16* @sc16, i16 %x acquire ; X64: movswl ; X64: movswl ; X64: subl ; X64: cmov ; X64: lock ; X64: cmpxchgw ; X32: movswl ; X32: movswl ; X32: subl ; X32: cmov ; X32: lock ; X32: cmpxchgw ret void ; X64: ret ; X32: ret } define void @atomic_fetch_umax16(i16 %x) nounwind { %t1 = atomicrmw umax i16* @sc16, i16 %x acquire ; X64: movzwl ; X64: movzwl ; X64: subl ; X64: cmov ; X64: lock ; X64: cmpxchgw ; X32: movzwl ; X32: movzwl ; X32: subl ; X32: cmov ; X32: lock ; X32: cmpxchgw ret void ; X64: ret ; X32: ret } define void @atomic_fetch_umin16(i16 %x) nounwind { %t1 = atomicrmw umin i16* @sc16, i16 %x acquire ; X64: movzwl ; X64: movzwl ; X64: subl ; X64: cmov ; X64: lock ; X64: cmpxchgw ; X32: movzwl ; X32: movzwl ; X32: subl ; 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 }