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|
; RUN: llc < %s -mtriple=i686-- -mcpu=core2 -no-integrated-as | FileCheck %s
define i32 @t1() nounwind {
entry:
%0 = tail call i32 asm sideeffect inteldialect "mov eax, $1\0A\09mov $0, eax", "=r,r,~{eax},~{dirflag},~{fpsr},~{flags}"(i32 1) nounwind
ret i32 %0
; CHECK: t1
; CHECK: {{## InlineAsm Start|#APP}}
; CHECK: .intel_syntax
; CHECK: mov eax, ecx
; CHECK: mov ecx, eax
; CHECK: .att_syntax
; CHECK: {{## InlineAsm End|#NO_APP}}
}
define void @t2() nounwind {
entry:
call void asm sideeffect inteldialect "mov eax, $$1", "~{eax},~{dirflag},~{fpsr},~{flags}"() nounwind
ret void
; CHECK: t2
; CHECK: {{## InlineAsm Start|#APP}}
; CHECK: .intel_syntax
; CHECK: mov eax, 1
; CHECK: .att_syntax
; CHECK: {{## InlineAsm End|#NO_APP}}
}
define void @t3(i32 %V) nounwind {
entry:
%V.addr = alloca i32, align 4
store i32 %V, ptr %V.addr, align 4
call void asm sideeffect inteldialect "mov eax, DWORD PTR [$0]", "*m,~{eax},~{dirflag},~{fpsr},~{flags}"(ptr elementtype(i32) %V.addr) nounwind
ret void
; CHECK: t3
; CHECK: {{## InlineAsm Start|#APP}}
; CHECK: .intel_syntax
; CHECK: mov eax, DWORD PTR {{[[esp]}}
; CHECK: .att_syntax
; CHECK: {{## InlineAsm End|#NO_APP}}
}
%struct.t18_type = type { i32, i32 }
define i32 @t18() nounwind {
entry:
%foo = alloca %struct.t18_type, align 4
store i32 1, ptr %foo, align 4
%b = getelementptr inbounds %struct.t18_type, ptr %foo, i32 0, i32 1
store i32 2, ptr %b, align 4
call void asm sideeffect inteldialect "lea ebx, foo\0A\09mov eax, [ebx].0\0A\09mov [ebx].4, ecx", "~{eax},~{dirflag},~{fpsr},~{flags}"() nounwind
%b1 = getelementptr inbounds %struct.t18_type, ptr %foo, i32 0, i32 1
%0 = load i32, ptr %b1, align 4
ret i32 %0
; CHECK: t18
; CHECK: {{## InlineAsm Start|#APP}}
; CHECK: .intel_syntax
; CHECK: lea ebx, foo
; CHECK: mov eax, [ebx].0
; CHECK: mov [ebx].4, ecx
; CHECK: .att_syntax
; CHECK: {{## InlineAsm End|#NO_APP}}
}
define void @t19_helper() nounwind {
entry:
ret void
}
define void @t19() nounwind {
entry:
call void asm sideeffect inteldialect "call $0", "r,~{dirflag},~{fpsr},~{flags}"(ptr @t19_helper) nounwind
ret void
; CHECK-LABEL: t19:
; CHECK: movl ${{_?}}t19_helper, %eax
; CHECK: {{## InlineAsm Start|#APP}}
; CHECK: .intel_syntax
; CHECK: call eax
; CHECK: .att_syntax
; CHECK: {{## InlineAsm End|#NO_APP}}
}
@results = global [2 x i32] [i32 3, i32 2], align 4
define ptr @t30() nounwind ssp {
entry:
%res = alloca ptr, align 4
call void asm sideeffect inteldialect "lea edi, dword ptr $0", "*m,~{edi},~{dirflag},~{fpsr},~{flags}"(ptr elementtype([2 x i32]) @results) nounwind
call void asm sideeffect inteldialect "mov dword ptr $0, edi", "=*m,~{dirflag},~{fpsr},~{flags}"(ptr elementtype(ptr) %res) nounwind
%0 = load ptr, ptr %res, align 4
ret ptr %0
; CHECK-LABEL: t30:
; CHECK: {{## InlineAsm Start|#APP}}
; CHECK: .intel_syntax
; CHECK: lea edi, dword ptr [{{_?}}results]
; CHECK: .att_syntax
; CHECK: {{## InlineAsm End|#NO_APP}}
; CHECK: {{## InlineAsm Start|#APP}}
; CHECK: .intel_syntax
; CHECK: mov dword ptr [esp], edi
; CHECK: .att_syntax
; CHECK: {{## InlineAsm End|#NO_APP}}
; CHECK: movl (%esp), %eax
}
; Stack realignment plus MS inline asm that does *not* adjust the stack is no
; longer an error.
define i32 @t31() {
entry:
%val = alloca i32, align 64
store i32 -1, ptr %val, align 64
call void asm sideeffect inteldialect "mov dword ptr $0, esp", "=*m,~{dirflag},~{fpsr},~{flags}"(ptr elementtype(i32) %val)
%sp = load i32, ptr %val, align 64
ret i32 %sp
; CHECK-LABEL: t31:
; CHECK: pushl %ebp
; CHECK: movl %esp, %ebp
; CHECK: andl $-64, %esp
; CHECK: {{## InlineAsm Start|#APP}}
; CHECK: .intel_syntax
; CHECK: mov dword ptr [esp], esp
; CHECK: .att_syntax
; CHECK: {{## InlineAsm End|#NO_APP}}
; CHECK: movl (%esp), %eax
; CHECK: ret
}
; Make sure ${:uid} works. Clang uses it for MS inline asm labels.
;
; C source:
; int uid() {
; int r;
; __asm {
; xor eax, eax
; wloop:
; inc eax
; cmp eax, 42
; jne wloop
; mov r, eax
; }
; return r;
; }
define i32 @uid() {
entry:
%r = alloca i32, align 4
call void asm sideeffect inteldialect "xor eax, eax\0A\09.L__MSASMLABEL_.${:uid}__wloop:\0A\09inc eax\0A\09cmp eax, $$42\0A\09jne .L__MSASMLABEL_.${:uid}__wloop\0A\09mov dword ptr $0, eax", "=*m,~{eax},~{flags},~{dirflag},~{fpsr},~{flags}"(ptr elementtype(i32) nonnull %r)
%0 = load i32, ptr %r, align 4
ret i32 %0
; CHECK-LABEL: uid:
; CHECK: {{## InlineAsm Start|#APP}}
; CHECK: .L__MSASMLABEL_.0__wloop:
; CHECK: jne .L__MSASMLABEL_.0__wloop
; CHECK: .att_syntax
; CHECK: {{## InlineAsm End|#NO_APP}}
; CHECK: ret
}
declare hidden void @other_func()
define void @naked() #0 {
call void asm sideeffect inteldialect "call dword ptr $0", "*m,~{eax},~{ebx},~{ecx},~{edx},~{edi},~{esi},~{esp},~{ebp},~{dirflag},~{fpsr},~{flags}"(ptr elementtype(void()) @other_func)
unreachable
}
attributes #0 = { naked }
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