| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -O0 -mtriple=x86_64-unknown-unknown -mcpu=corei7 -verify-machineinstrs | FileCheck %s -check-prefixes=X64,X64-CMOV |
| ; RUN: llc < %s -O0 -mtriple=i686-unknown-unknown -mcpu=corei7 -verify-machineinstrs | FileCheck %s -check-prefixes=X86,X86-CMOV |
| ; RUN: llc < %s -O0 -mtriple=i686-unknown-unknown -mcpu=corei7 -mattr=-cmov -verify-machineinstrs | FileCheck %s --check-prefixes=X86,X86-NOCMOV |
| |
| @sc32 = external global i32 |
| |
| define void @atomic_fetch_add32() nounwind { |
| ; X64-LABEL: atomic_fetch_add32: |
| ; X64: # %bb.0: # %entry |
| ; X64-NEXT: lock incl {{.*}}(%rip) |
| ; X64-NEXT: lock addl $3, {{.*}}(%rip) |
| ; X64-NEXT: movl $5, %eax |
| ; X64-NEXT: lock xaddl %eax, {{.*}}(%rip) |
| ; X64-NEXT: lock addl %eax, {{.*}}(%rip) |
| ; X64-NEXT: retq |
| ; |
| ; X86-LABEL: atomic_fetch_add32: |
| ; X86: # %bb.0: # %entry |
| ; X86-NEXT: lock incl sc32 |
| ; X86-NEXT: lock addl $3, sc32 |
| ; X86-NEXT: movl $5, %eax |
| ; X86-NEXT: lock xaddl %eax, sc32 |
| ; X86-NEXT: lock addl %eax, sc32 |
| ; X86-NEXT: retl |
| entry: |
| %t1 = atomicrmw add i32* @sc32, i32 1 acquire |
| %t2 = atomicrmw add i32* @sc32, i32 3 acquire |
| %t3 = atomicrmw add i32* @sc32, i32 5 acquire |
| %t4 = atomicrmw add i32* @sc32, i32 %t3 acquire |
| ret void |
| } |
| |
| define void @atomic_fetch_sub32() nounwind { |
| ; X64-LABEL: atomic_fetch_sub32: |
| ; X64: # %bb.0: |
| ; X64-NEXT: lock decl {{.*}}(%rip) |
| ; X64-NEXT: lock subl $3, {{.*}}(%rip) |
| ; X64-NEXT: movl $-5, %eax |
| ; X64-NEXT: lock xaddl %eax, {{.*}}(%rip) |
| ; X64-NEXT: lock subl %eax, {{.*}}(%rip) |
| ; X64-NEXT: retq |
| ; |
| ; X86-LABEL: atomic_fetch_sub32: |
| ; X86: # %bb.0: |
| ; X86-NEXT: lock decl sc32 |
| ; X86-NEXT: lock subl $3, sc32 |
| ; X86-NEXT: movl $-5, %eax |
| ; X86-NEXT: lock xaddl %eax, sc32 |
| ; X86-NEXT: lock subl %eax, sc32 |
| ; X86-NEXT: retl |
| %t1 = atomicrmw sub i32* @sc32, i32 1 acquire |
| %t2 = atomicrmw sub i32* @sc32, i32 3 acquire |
| %t3 = atomicrmw sub i32* @sc32, i32 5 acquire |
| %t4 = atomicrmw sub i32* @sc32, i32 %t3 acquire |
| ret void |
| } |
| |
| define void @atomic_fetch_and32() nounwind { |
| ; X64-LABEL: atomic_fetch_and32: |
| ; X64: # %bb.0: |
| ; X64-NEXT: lock andl $3, {{.*}}(%rip) |
| ; X64-NEXT: movl sc32, %eax |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: .LBB2_1: # %atomicrmw.start |
| ; X64-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %eax # 4-byte Reload |
| ; X64-NEXT: movl %eax, %ecx |
| ; X64-NEXT: andl $5, %ecx |
| ; X64-NEXT: lock cmpxchgl %ecx, {{.*}}(%rip) |
| ; X64-NEXT: sete %dl |
| ; X64-NEXT: testb $1, %dl |
| ; X64-NEXT: movl %eax, %ecx |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: movl %ecx, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: jne .LBB2_2 |
| ; X64-NEXT: jmp .LBB2_1 |
| ; X64-NEXT: .LBB2_2: # %atomicrmw.end |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %eax # 4-byte Reload |
| ; X64-NEXT: lock andl %eax, {{.*}}(%rip) |
| ; X64-NEXT: retq |
| ; |
| ; X86-LABEL: atomic_fetch_and32: |
| ; X86: # %bb.0: |
| ; X86-NEXT: subl $8, %esp |
| ; X86-NEXT: lock andl $3, sc32 |
| ; X86-NEXT: movl sc32, %eax |
| ; X86-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NEXT: .LBB2_1: # %atomicrmw.start |
| ; X86-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NEXT: movl %eax, %ecx |
| ; X86-NEXT: andl $5, %ecx |
| ; X86-NEXT: lock cmpxchgl %ecx, sc32 |
| ; X86-NEXT: sete %dl |
| ; X86-NEXT: testb $1, %dl |
| ; X86-NEXT: movl %eax, %ecx |
| ; X86-NEXT: movl %eax, (%esp) # 4-byte Spill |
| ; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NEXT: jne .LBB2_2 |
| ; X86-NEXT: jmp .LBB2_1 |
| ; X86-NEXT: .LBB2_2: # %atomicrmw.end |
| ; X86-NEXT: movl (%esp), %eax # 4-byte Reload |
| ; X86-NEXT: lock andl %eax, sc32 |
| ; X86-NEXT: addl $8, %esp |
| ; X86-NEXT: retl |
| %t1 = atomicrmw and i32* @sc32, i32 3 acquire |
| %t2 = atomicrmw and i32* @sc32, i32 5 acquire |
| %t3 = atomicrmw and i32* @sc32, i32 %t2 acquire |
| ret void |
| } |
| |
| define void @atomic_fetch_or32() nounwind { |
| ; X64-LABEL: atomic_fetch_or32: |
| ; X64: # %bb.0: |
| ; X64-NEXT: lock orl $3, {{.*}}(%rip) |
| ; X64-NEXT: movl sc32, %eax |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: .LBB3_1: # %atomicrmw.start |
| ; X64-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %eax # 4-byte Reload |
| ; X64-NEXT: movl %eax, %ecx |
| ; X64-NEXT: orl $5, %ecx |
| ; X64-NEXT: lock cmpxchgl %ecx, {{.*}}(%rip) |
| ; X64-NEXT: sete %dl |
| ; X64-NEXT: testb $1, %dl |
| ; X64-NEXT: movl %eax, %ecx |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: movl %ecx, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: jne .LBB3_2 |
| ; X64-NEXT: jmp .LBB3_1 |
| ; X64-NEXT: .LBB3_2: # %atomicrmw.end |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %eax # 4-byte Reload |
| ; X64-NEXT: lock orl %eax, {{.*}}(%rip) |
| ; X64-NEXT: retq |
| ; |
| ; X86-LABEL: atomic_fetch_or32: |
| ; X86: # %bb.0: |
| ; X86-NEXT: subl $8, %esp |
| ; X86-NEXT: lock orl $3, sc32 |
| ; X86-NEXT: movl sc32, %eax |
| ; X86-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NEXT: .LBB3_1: # %atomicrmw.start |
| ; X86-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NEXT: movl %eax, %ecx |
| ; X86-NEXT: orl $5, %ecx |
| ; X86-NEXT: lock cmpxchgl %ecx, sc32 |
| ; X86-NEXT: sete %dl |
| ; X86-NEXT: testb $1, %dl |
| ; X86-NEXT: movl %eax, %ecx |
| ; X86-NEXT: movl %eax, (%esp) # 4-byte Spill |
| ; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NEXT: jne .LBB3_2 |
| ; X86-NEXT: jmp .LBB3_1 |
| ; X86-NEXT: .LBB3_2: # %atomicrmw.end |
| ; X86-NEXT: movl (%esp), %eax # 4-byte Reload |
| ; X86-NEXT: lock orl %eax, sc32 |
| ; X86-NEXT: addl $8, %esp |
| ; X86-NEXT: retl |
| %t1 = atomicrmw or i32* @sc32, i32 3 acquire |
| %t2 = atomicrmw or i32* @sc32, i32 5 acquire |
| %t3 = atomicrmw or i32* @sc32, i32 %t2 acquire |
| ret void |
| } |
| |
| define void @atomic_fetch_xor32() nounwind { |
| ; X64-LABEL: atomic_fetch_xor32: |
| ; X64: # %bb.0: |
| ; X64-NEXT: lock xorl $3, {{.*}}(%rip) |
| ; X64-NEXT: movl sc32, %eax |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: .LBB4_1: # %atomicrmw.start |
| ; X64-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %eax # 4-byte Reload |
| ; X64-NEXT: movl %eax, %ecx |
| ; X64-NEXT: xorl $5, %ecx |
| ; X64-NEXT: lock cmpxchgl %ecx, {{.*}}(%rip) |
| ; X64-NEXT: sete %dl |
| ; X64-NEXT: testb $1, %dl |
| ; X64-NEXT: movl %eax, %ecx |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: movl %ecx, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: jne .LBB4_2 |
| ; X64-NEXT: jmp .LBB4_1 |
| ; X64-NEXT: .LBB4_2: # %atomicrmw.end |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %eax # 4-byte Reload |
| ; X64-NEXT: lock xorl %eax, {{.*}}(%rip) |
| ; X64-NEXT: retq |
| ; |
| ; X86-LABEL: atomic_fetch_xor32: |
| ; X86: # %bb.0: |
| ; X86-NEXT: subl $8, %esp |
| ; X86-NEXT: lock xorl $3, sc32 |
| ; X86-NEXT: movl sc32, %eax |
| ; X86-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NEXT: .LBB4_1: # %atomicrmw.start |
| ; X86-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NEXT: movl %eax, %ecx |
| ; X86-NEXT: xorl $5, %ecx |
| ; X86-NEXT: lock cmpxchgl %ecx, sc32 |
| ; X86-NEXT: sete %dl |
| ; X86-NEXT: testb $1, %dl |
| ; X86-NEXT: movl %eax, %ecx |
| ; X86-NEXT: movl %eax, (%esp) # 4-byte Spill |
| ; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NEXT: jne .LBB4_2 |
| ; X86-NEXT: jmp .LBB4_1 |
| ; X86-NEXT: .LBB4_2: # %atomicrmw.end |
| ; X86-NEXT: movl (%esp), %eax # 4-byte Reload |
| ; X86-NEXT: lock xorl %eax, sc32 |
| ; X86-NEXT: addl $8, %esp |
| ; X86-NEXT: retl |
| %t1 = atomicrmw xor i32* @sc32, i32 3 acquire |
| %t2 = atomicrmw xor i32* @sc32, i32 5 acquire |
| %t3 = atomicrmw xor i32* @sc32, i32 %t2 acquire |
| ret void |
| } |
| |
| define void @atomic_fetch_nand32(i32 %x) nounwind { |
| ; X64-LABEL: atomic_fetch_nand32: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl sc32, %eax |
| ; X64-NEXT: movl %edi, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: .LBB5_1: # %atomicrmw.start |
| ; X64-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %eax # 4-byte Reload |
| ; X64-NEXT: movl %eax, %ecx |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %edx # 4-byte Reload |
| ; X64-NEXT: andl %edx, %ecx |
| ; X64-NEXT: notl %ecx |
| ; X64-NEXT: lock cmpxchgl %ecx, {{.*}}(%rip) |
| ; X64-NEXT: sete %sil |
| ; X64-NEXT: testb $1, %sil |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: jne .LBB5_2 |
| ; X64-NEXT: jmp .LBB5_1 |
| ; X64-NEXT: .LBB5_2: # %atomicrmw.end |
| ; X64-NEXT: retq |
| ; |
| ; X86-LABEL: atomic_fetch_nand32: |
| ; X86: # %bb.0: |
| ; X86-NEXT: pushl %ebx |
| ; X86-NEXT: subl $8, %esp |
| ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NEXT: movl sc32, %ecx |
| ; X86-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NEXT: movl %ecx, (%esp) # 4-byte Spill |
| ; X86-NEXT: .LBB5_1: # %atomicrmw.start |
| ; X86-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X86-NEXT: movl (%esp), %eax # 4-byte Reload |
| ; X86-NEXT: movl %eax, %ecx |
| ; X86-NEXT: movl {{[0-9]+}}(%esp), %edx # 4-byte Reload |
| ; X86-NEXT: andl %edx, %ecx |
| ; X86-NEXT: notl %ecx |
| ; X86-NEXT: lock cmpxchgl %ecx, sc32 |
| ; X86-NEXT: sete %bl |
| ; X86-NEXT: testb $1, %bl |
| ; X86-NEXT: movl %eax, (%esp) # 4-byte Spill |
| ; X86-NEXT: jne .LBB5_2 |
| ; X86-NEXT: jmp .LBB5_1 |
| ; X86-NEXT: .LBB5_2: # %atomicrmw.end |
| ; X86-NEXT: addl $8, %esp |
| ; X86-NEXT: popl %ebx |
| ; X86-NEXT: retl |
| %t1 = atomicrmw nand i32* @sc32, i32 %x acquire |
| ret void |
| } |
| |
| define void @atomic_fetch_max32(i32 %x) nounwind { |
| ; X64-LABEL: atomic_fetch_max32: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl sc32, %eax |
| ; X64-NEXT: movl %edi, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: .LBB6_1: # %atomicrmw.start |
| ; X64-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %eax # 4-byte Reload |
| ; X64-NEXT: movl %eax, %ecx |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %edx # 4-byte Reload |
| ; X64-NEXT: subl %edx, %ecx |
| ; X64-NEXT: cmovgel %eax, %edx |
| ; X64-NEXT: lock cmpxchgl %edx, {{.*}}(%rip) |
| ; X64-NEXT: sete %sil |
| ; X64-NEXT: testb $1, %sil |
| ; X64-NEXT: movl %ecx, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: jne .LBB6_2 |
| ; X64-NEXT: jmp .LBB6_1 |
| ; X64-NEXT: .LBB6_2: # %atomicrmw.end |
| ; X64-NEXT: retq |
| ; |
| ; X86-CMOV-LABEL: atomic_fetch_max32: |
| ; X86-CMOV: # %bb.0: |
| ; X86-CMOV-NEXT: pushl %ebx |
| ; X86-CMOV-NEXT: subl $12, %esp |
| ; X86-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-CMOV-NEXT: movl sc32, %ecx |
| ; X86-CMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: .LBB6_1: # %atomicrmw.start |
| ; X86-CMOV-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X86-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-CMOV-NEXT: movl %eax, %ecx |
| ; X86-CMOV-NEXT: movl {{[0-9]+}}(%esp), %edx # 4-byte Reload |
| ; X86-CMOV-NEXT: subl %edx, %ecx |
| ; X86-CMOV-NEXT: cmovgel %eax, %edx |
| ; X86-CMOV-NEXT: lock cmpxchgl %edx, sc32 |
| ; X86-CMOV-NEXT: sete %bl |
| ; X86-CMOV-NEXT: testb $1, %bl |
| ; X86-CMOV-NEXT: movl %ecx, (%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: jne .LBB6_2 |
| ; X86-CMOV-NEXT: jmp .LBB6_1 |
| ; X86-CMOV-NEXT: .LBB6_2: # %atomicrmw.end |
| ; X86-CMOV-NEXT: addl $12, %esp |
| ; X86-CMOV-NEXT: popl %ebx |
| ; X86-CMOV-NEXT: retl |
| ; |
| ; X86-NOCMOV-LABEL: atomic_fetch_max32: |
| ; X86-NOCMOV: # %bb.0: |
| ; X86-NOCMOV-NEXT: pushl %ebx |
| ; X86-NOCMOV-NEXT: pushl %esi |
| ; X86-NOCMOV-NEXT: subl $24, %esp |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOCMOV-NEXT: movl sc32, %ecx |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: .LBB6_1: # %atomicrmw.start |
| ; X86-NOCMOV-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl %eax, %ecx |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %edx # 4-byte Reload |
| ; X86-NOCMOV-NEXT: subl %edx, %ecx |
| ; X86-NOCMOV-NEXT: movl %eax, %esi |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %esi, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: jge .LBB6_4 |
| ; X86-NOCMOV-NEXT: # %bb.3: # %atomicrmw.start |
| ; X86-NOCMOV-NEXT: # in Loop: Header=BB6_1 Depth=1 |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: .LBB6_4: # %atomicrmw.start |
| ; X86-NOCMOV-NEXT: # in Loop: Header=BB6_1 Depth=1 |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl %eax, (%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %ecx, %eax |
| ; X86-NOCMOV-NEXT: movl (%esp), %edx # 4-byte Reload |
| ; X86-NOCMOV-NEXT: lock cmpxchgl %edx, sc32 |
| ; X86-NOCMOV-NEXT: sete %bl |
| ; X86-NOCMOV-NEXT: testb $1, %bl |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: jne .LBB6_2 |
| ; X86-NOCMOV-NEXT: jmp .LBB6_1 |
| ; X86-NOCMOV-NEXT: .LBB6_2: # %atomicrmw.end |
| ; X86-NOCMOV-NEXT: addl $24, %esp |
| ; X86-NOCMOV-NEXT: popl %esi |
| ; X86-NOCMOV-NEXT: popl %ebx |
| ; X86-NOCMOV-NEXT: retl |
| %t1 = atomicrmw max i32* @sc32, i32 %x acquire |
| ret void |
| } |
| |
| define void @atomic_fetch_min32(i32 %x) nounwind { |
| ; X64-LABEL: atomic_fetch_min32: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl sc32, %eax |
| ; X64-NEXT: movl %edi, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: .LBB7_1: # %atomicrmw.start |
| ; X64-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %eax # 4-byte Reload |
| ; X64-NEXT: movl %eax, %ecx |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %edx # 4-byte Reload |
| ; X64-NEXT: subl %edx, %ecx |
| ; X64-NEXT: cmovlel %eax, %edx |
| ; X64-NEXT: lock cmpxchgl %edx, {{.*}}(%rip) |
| ; X64-NEXT: sete %sil |
| ; X64-NEXT: testb $1, %sil |
| ; X64-NEXT: movl %ecx, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: jne .LBB7_2 |
| ; X64-NEXT: jmp .LBB7_1 |
| ; X64-NEXT: .LBB7_2: # %atomicrmw.end |
| ; X64-NEXT: retq |
| ; |
| ; X86-CMOV-LABEL: atomic_fetch_min32: |
| ; X86-CMOV: # %bb.0: |
| ; X86-CMOV-NEXT: pushl %ebx |
| ; X86-CMOV-NEXT: subl $12, %esp |
| ; X86-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-CMOV-NEXT: movl sc32, %ecx |
| ; X86-CMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: .LBB7_1: # %atomicrmw.start |
| ; X86-CMOV-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X86-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-CMOV-NEXT: movl %eax, %ecx |
| ; X86-CMOV-NEXT: movl {{[0-9]+}}(%esp), %edx # 4-byte Reload |
| ; X86-CMOV-NEXT: subl %edx, %ecx |
| ; X86-CMOV-NEXT: cmovlel %eax, %edx |
| ; X86-CMOV-NEXT: lock cmpxchgl %edx, sc32 |
| ; X86-CMOV-NEXT: sete %bl |
| ; X86-CMOV-NEXT: testb $1, %bl |
| ; X86-CMOV-NEXT: movl %ecx, (%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: jne .LBB7_2 |
| ; X86-CMOV-NEXT: jmp .LBB7_1 |
| ; X86-CMOV-NEXT: .LBB7_2: # %atomicrmw.end |
| ; X86-CMOV-NEXT: addl $12, %esp |
| ; X86-CMOV-NEXT: popl %ebx |
| ; X86-CMOV-NEXT: retl |
| ; |
| ; X86-NOCMOV-LABEL: atomic_fetch_min32: |
| ; X86-NOCMOV: # %bb.0: |
| ; X86-NOCMOV-NEXT: pushl %ebx |
| ; X86-NOCMOV-NEXT: pushl %esi |
| ; X86-NOCMOV-NEXT: subl $24, %esp |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOCMOV-NEXT: movl sc32, %ecx |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: .LBB7_1: # %atomicrmw.start |
| ; X86-NOCMOV-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl %eax, %ecx |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %edx # 4-byte Reload |
| ; X86-NOCMOV-NEXT: subl %edx, %ecx |
| ; X86-NOCMOV-NEXT: movl %eax, %esi |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %esi, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: jle .LBB7_4 |
| ; X86-NOCMOV-NEXT: # %bb.3: # %atomicrmw.start |
| ; X86-NOCMOV-NEXT: # in Loop: Header=BB7_1 Depth=1 |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: .LBB7_4: # %atomicrmw.start |
| ; X86-NOCMOV-NEXT: # in Loop: Header=BB7_1 Depth=1 |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl %eax, (%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %ecx, %eax |
| ; X86-NOCMOV-NEXT: movl (%esp), %edx # 4-byte Reload |
| ; X86-NOCMOV-NEXT: lock cmpxchgl %edx, sc32 |
| ; X86-NOCMOV-NEXT: sete %bl |
| ; X86-NOCMOV-NEXT: testb $1, %bl |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: jne .LBB7_2 |
| ; X86-NOCMOV-NEXT: jmp .LBB7_1 |
| ; X86-NOCMOV-NEXT: .LBB7_2: # %atomicrmw.end |
| ; X86-NOCMOV-NEXT: addl $24, %esp |
| ; X86-NOCMOV-NEXT: popl %esi |
| ; X86-NOCMOV-NEXT: popl %ebx |
| ; X86-NOCMOV-NEXT: retl |
| %t1 = atomicrmw min i32* @sc32, i32 %x acquire |
| ret void |
| } |
| |
| define void @atomic_fetch_umax32(i32 %x) nounwind { |
| ; X64-LABEL: atomic_fetch_umax32: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl sc32, %eax |
| ; X64-NEXT: movl %edi, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: .LBB8_1: # %atomicrmw.start |
| ; X64-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %eax # 4-byte Reload |
| ; X64-NEXT: movl %eax, %ecx |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %edx # 4-byte Reload |
| ; X64-NEXT: subl %edx, %ecx |
| ; X64-NEXT: cmoval %eax, %edx |
| ; X64-NEXT: lock cmpxchgl %edx, {{.*}}(%rip) |
| ; X64-NEXT: sete %sil |
| ; X64-NEXT: testb $1, %sil |
| ; X64-NEXT: movl %ecx, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: jne .LBB8_2 |
| ; X64-NEXT: jmp .LBB8_1 |
| ; X64-NEXT: .LBB8_2: # %atomicrmw.end |
| ; X64-NEXT: retq |
| ; |
| ; X86-CMOV-LABEL: atomic_fetch_umax32: |
| ; X86-CMOV: # %bb.0: |
| ; X86-CMOV-NEXT: pushl %ebx |
| ; X86-CMOV-NEXT: subl $12, %esp |
| ; X86-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-CMOV-NEXT: movl sc32, %ecx |
| ; X86-CMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: .LBB8_1: # %atomicrmw.start |
| ; X86-CMOV-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X86-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-CMOV-NEXT: movl %eax, %ecx |
| ; X86-CMOV-NEXT: movl {{[0-9]+}}(%esp), %edx # 4-byte Reload |
| ; X86-CMOV-NEXT: subl %edx, %ecx |
| ; X86-CMOV-NEXT: cmoval %eax, %edx |
| ; X86-CMOV-NEXT: lock cmpxchgl %edx, sc32 |
| ; X86-CMOV-NEXT: sete %bl |
| ; X86-CMOV-NEXT: testb $1, %bl |
| ; X86-CMOV-NEXT: movl %ecx, (%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: jne .LBB8_2 |
| ; X86-CMOV-NEXT: jmp .LBB8_1 |
| ; X86-CMOV-NEXT: .LBB8_2: # %atomicrmw.end |
| ; X86-CMOV-NEXT: addl $12, %esp |
| ; X86-CMOV-NEXT: popl %ebx |
| ; X86-CMOV-NEXT: retl |
| ; |
| ; X86-NOCMOV-LABEL: atomic_fetch_umax32: |
| ; X86-NOCMOV: # %bb.0: |
| ; X86-NOCMOV-NEXT: pushl %ebx |
| ; X86-NOCMOV-NEXT: pushl %esi |
| ; X86-NOCMOV-NEXT: subl $24, %esp |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOCMOV-NEXT: movl sc32, %ecx |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: .LBB8_1: # %atomicrmw.start |
| ; X86-NOCMOV-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl %eax, %ecx |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %edx # 4-byte Reload |
| ; X86-NOCMOV-NEXT: subl %edx, %ecx |
| ; X86-NOCMOV-NEXT: movl %eax, %esi |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %esi, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: ja .LBB8_4 |
| ; X86-NOCMOV-NEXT: # %bb.3: # %atomicrmw.start |
| ; X86-NOCMOV-NEXT: # in Loop: Header=BB8_1 Depth=1 |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: .LBB8_4: # %atomicrmw.start |
| ; X86-NOCMOV-NEXT: # in Loop: Header=BB8_1 Depth=1 |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl %eax, (%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %ecx, %eax |
| ; X86-NOCMOV-NEXT: movl (%esp), %edx # 4-byte Reload |
| ; X86-NOCMOV-NEXT: lock cmpxchgl %edx, sc32 |
| ; X86-NOCMOV-NEXT: sete %bl |
| ; X86-NOCMOV-NEXT: testb $1, %bl |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: jne .LBB8_2 |
| ; X86-NOCMOV-NEXT: jmp .LBB8_1 |
| ; X86-NOCMOV-NEXT: .LBB8_2: # %atomicrmw.end |
| ; X86-NOCMOV-NEXT: addl $24, %esp |
| ; X86-NOCMOV-NEXT: popl %esi |
| ; X86-NOCMOV-NEXT: popl %ebx |
| ; X86-NOCMOV-NEXT: retl |
| %t1 = atomicrmw umax i32* @sc32, i32 %x acquire |
| ret void |
| } |
| |
| define void @atomic_fetch_umin32(i32 %x) nounwind { |
| ; X64-LABEL: atomic_fetch_umin32: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl sc32, %eax |
| ; X64-NEXT: movl %edi, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: .LBB9_1: # %atomicrmw.start |
| ; X64-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %eax # 4-byte Reload |
| ; X64-NEXT: movl %eax, %ecx |
| ; X64-NEXT: movl -{{[0-9]+}}(%rsp), %edx # 4-byte Reload |
| ; X64-NEXT: subl %edx, %ecx |
| ; X64-NEXT: cmovbel %eax, %edx |
| ; X64-NEXT: lock cmpxchgl %edx, {{.*}}(%rip) |
| ; X64-NEXT: sete %sil |
| ; X64-NEXT: testb $1, %sil |
| ; X64-NEXT: movl %ecx, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: jne .LBB9_2 |
| ; X64-NEXT: jmp .LBB9_1 |
| ; X64-NEXT: .LBB9_2: # %atomicrmw.end |
| ; X64-NEXT: retq |
| ; |
| ; X86-CMOV-LABEL: atomic_fetch_umin32: |
| ; X86-CMOV: # %bb.0: |
| ; X86-CMOV-NEXT: pushl %ebx |
| ; X86-CMOV-NEXT: subl $12, %esp |
| ; X86-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-CMOV-NEXT: movl sc32, %ecx |
| ; X86-CMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: .LBB9_1: # %atomicrmw.start |
| ; X86-CMOV-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X86-CMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-CMOV-NEXT: movl %eax, %ecx |
| ; X86-CMOV-NEXT: movl {{[0-9]+}}(%esp), %edx # 4-byte Reload |
| ; X86-CMOV-NEXT: subl %edx, %ecx |
| ; X86-CMOV-NEXT: cmovbel %eax, %edx |
| ; X86-CMOV-NEXT: lock cmpxchgl %edx, sc32 |
| ; X86-CMOV-NEXT: sete %bl |
| ; X86-CMOV-NEXT: testb $1, %bl |
| ; X86-CMOV-NEXT: movl %ecx, (%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-CMOV-NEXT: jne .LBB9_2 |
| ; X86-CMOV-NEXT: jmp .LBB9_1 |
| ; X86-CMOV-NEXT: .LBB9_2: # %atomicrmw.end |
| ; X86-CMOV-NEXT: addl $12, %esp |
| ; X86-CMOV-NEXT: popl %ebx |
| ; X86-CMOV-NEXT: retl |
| ; |
| ; X86-NOCMOV-LABEL: atomic_fetch_umin32: |
| ; X86-NOCMOV: # %bb.0: |
| ; X86-NOCMOV-NEXT: pushl %ebx |
| ; X86-NOCMOV-NEXT: pushl %esi |
| ; X86-NOCMOV-NEXT: subl $24, %esp |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NOCMOV-NEXT: movl sc32, %ecx |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: .LBB9_1: # %atomicrmw.start |
| ; X86-NOCMOV-NEXT: # =>This Inner Loop Header: Depth=1 |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl %eax, %ecx |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %edx # 4-byte Reload |
| ; X86-NOCMOV-NEXT: subl %edx, %ecx |
| ; X86-NOCMOV-NEXT: movl %eax, %esi |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %esi, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: jbe .LBB9_4 |
| ; X86-NOCMOV-NEXT: # %bb.3: # %atomicrmw.start |
| ; X86-NOCMOV-NEXT: # in Loop: Header=BB9_1 Depth=1 |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: .LBB9_4: # %atomicrmw.start |
| ; X86-NOCMOV-NEXT: # in Loop: Header=BB9_1 Depth=1 |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl {{[0-9]+}}(%esp), %ecx # 4-byte Reload |
| ; X86-NOCMOV-NEXT: movl %eax, (%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: movl %ecx, %eax |
| ; X86-NOCMOV-NEXT: movl (%esp), %edx # 4-byte Reload |
| ; X86-NOCMOV-NEXT: lock cmpxchgl %edx, sc32 |
| ; X86-NOCMOV-NEXT: sete %bl |
| ; X86-NOCMOV-NEXT: testb $1, %bl |
| ; X86-NOCMOV-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill |
| ; X86-NOCMOV-NEXT: jne .LBB9_2 |
| ; X86-NOCMOV-NEXT: jmp .LBB9_1 |
| ; X86-NOCMOV-NEXT: .LBB9_2: # %atomicrmw.end |
| ; X86-NOCMOV-NEXT: addl $24, %esp |
| ; X86-NOCMOV-NEXT: popl %esi |
| ; X86-NOCMOV-NEXT: popl %ebx |
| ; X86-NOCMOV-NEXT: retl |
| %t1 = atomicrmw umin i32* @sc32, i32 %x acquire |
| ret void |
| } |
| |
| define void @atomic_fetch_cmpxchg32() nounwind { |
| ; X64-LABEL: atomic_fetch_cmpxchg32: |
| ; X64: # %bb.0: |
| ; X64-NEXT: xorl %eax, %eax |
| ; X64-NEXT: movl $1, %ecx |
| ; X64-NEXT: lock cmpxchgl %ecx, {{.*}}(%rip) |
| ; X64-NEXT: movl %eax, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: retq |
| ; |
| ; X86-LABEL: atomic_fetch_cmpxchg32: |
| ; X86: # %bb.0: |
| ; X86-NEXT: pushl %eax |
| ; X86-NEXT: xorl %eax, %eax |
| ; X86-NEXT: movl $1, %ecx |
| ; X86-NEXT: lock cmpxchgl %ecx, sc32 |
| ; X86-NEXT: movl %eax, (%esp) # 4-byte Spill |
| ; X86-NEXT: popl %eax |
| ; X86-NEXT: retl |
| %t1 = cmpxchg i32* @sc32, i32 0, i32 1 acquire acquire |
| ret void |
| } |
| |
| define void @atomic_fetch_store32(i32 %x) nounwind { |
| ; X64-LABEL: atomic_fetch_store32: |
| ; X64: # %bb.0: |
| ; X64-NEXT: movl %edi, {{.*}}(%rip) |
| ; X64-NEXT: retq |
| ; |
| ; X86-LABEL: atomic_fetch_store32: |
| ; X86: # %bb.0: |
| ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NEXT: movl %eax, sc32 |
| ; X86-NEXT: retl |
| store atomic i32 %x, i32* @sc32 release, align 4 |
| ret void |
| } |
| |
| define void @atomic_fetch_swap32(i32 %x) nounwind { |
| ; X64-LABEL: atomic_fetch_swap32: |
| ; X64: # %bb.0: |
| ; X64-NEXT: xchgl %edi, {{.*}}(%rip) |
| ; X64-NEXT: movl %edi, -{{[0-9]+}}(%rsp) # 4-byte Spill |
| ; X64-NEXT: retq |
| ; |
| ; X86-LABEL: atomic_fetch_swap32: |
| ; X86: # %bb.0: |
| ; X86-NEXT: pushl %eax |
| ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax |
| ; X86-NEXT: xchgl %eax, sc32 |
| ; X86-NEXT: movl %eax, (%esp) # 4-byte Spill |
| ; X86-NEXT: popl %eax |
| ; X86-NEXT: retl |
| %t1 = atomicrmw xchg i32* @sc32, i32 %x acquire |
| ret void |
| } |