xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/2008-09-17-inline-asm-1.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)

; RUN: llc < %s -march=x86 | FileCheck %s
; RUN: llc < %s -march=x86 -regalloc=fast -optimize-regalloc=0 | FileCheck %s

; %0 must not be put in EAX or EDX.
; In the first asm, $0 and $2 must not be put in EAX.
; CHECK: InlineAsm Start
; CHECK-NOT: movl %eax, %eax
; CHECK-NOT: movl (%eax), %eax
; CHECK: InlineAsm End
; In the second asm, $0 and $2 must not be put in EDX.
; CHECK: InlineAsm Start
; CHECK-NOT: movl %edx, %edx
; CHECK-NOT: movl (%edx), %edx
; CHECK: InlineAsm End

target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i386-apple-darwin8"
@x = common global i32 0

define i32 @aci(i32* %pw) nounwind {
entry:
	%0 = load i32, i32* @x, align 4
	%asmtmp = tail call { i32, i32 } asm "movl $0, %eax\0A\090:\0A\09test %eax, %eax\0A\09je 1f\0A\09movl %eax, $2\0A\09incl $2\0A\09lock\0A\09cmpxchgl $2, $0\0A\09jne 0b\0A\091:", "=*m,=&{ax},=&r,*m,~{dirflag},~{fpsr},~{flags},~{memory},~{cc}"(i32* %pw, i32* %pw) nounwind
	%asmtmp2 = tail call { i32, i32 } asm "movl $0, %edx\0A\090:\0A\09test %edx, %edx\0A\09je 1f\0A\09movl %edx, $2\0A\09incl $2\0A\09lock\0A\09cmpxchgl $2, $0\0A\09jne 0b\0A\091:", "=*m,=&{dx},=&r,*m,~{dirflag},~{fpsr},~{flags},~{memory},~{cc}"(i32* %pw, i32* %pw) nounwind
	%asmresult2 = extractvalue { i32, i32 } %asmtmp, 0
	%asmresult3 = extractvalue { i32, i32 } %asmtmp2, 0
	%1 = add i32 %asmresult2, %asmresult3
	%2 = add i32 %0, %1
	ret i32 %2
}