diff --git a/llvm/test/CodeGen/X86/atomic32.ll b/llvm/test/CodeGen/X86/atomic32.ll index 6a18e6a41ca9..81a590fefd46 100644 --- a/llvm/test/CodeGen/X86/atomic32.ll +++ b/llvm/test/CodeGen/X86/atomic32.ll @@ -1,207 +1,710 @@ -; RUN: llc < %s -O0 -mtriple=x86_64-- -mcpu=corei7 -verify-machineinstrs | FileCheck %s -check-prefix=WITH-CMOV -; RUN: llc < %s -O0 -mtriple=i686-- -mcpu=corei7 -verify-machineinstrs | FileCheck %s -check-prefix=WITH-CMOV -; RUN: llc < %s -O0 -mtriple=i686-- -mcpu=corei7 -mattr=-cmov -verify-machineinstrs | FileCheck %s --check-prefix NOCMOV +; 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 { -; WITH-CMOV-LABEL: atomic_fetch_add32: +; 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: -; 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: +; 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 -; 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: +; 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 -; 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: +; 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 -; 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: +; 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 -; 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: +; 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 -; 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: - +; 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 -; 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: - +; 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 -; 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: - +; 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 -; 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: - +; 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 -; 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: - +; 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 -; 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: - +; 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 -; 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: - +; 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 -; WITH-CMOV-NOT: lock -; WITH-CMOV: xchgl ret void -; WITH-CMOV: ret }