llvm-project/clang/test/Parser/ms-inline-asm.c
Eric Astor 4a7aa252a3 [X86][AsmParser] re-introduce 'offset' operator
Summary:
Amend MS offset operator implementation, to more closely fit with its MS counterpart:

    1. InlineAsm: evaluate non-local source entities to their (address) location
    2. Provide a mean with which one may acquire the address of an assembly label via MS syntax, rather than yielding a memory reference (i.e. "offset asm_label" and "$asm_label" should be synonymous
    3. address PR32530

Based on http://llvm.org/D37461

Fix broken test where the break appears unrelated.

- Set up appropriate memory-input rewrites for variable references.

- Intel-dialect assembly printing now correctly handles addresses by adding "offset".

- Pass offsets as immediate operands (using "r" constraint for offsets of locals).

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D71436
2019-12-30 14:35:26 -05:00

68 lines
1.4 KiB
C

// REQUIRES: x86-registered-target
// RUN: %clang_cc1 %s -triple i386-apple-darwin10 -verify -fasm-blocks
// Disabling gnu inline assembly should have no effect on this testcase
// RUN: %clang_cc1 %s -triple i386-apple-darwin10 -verify -fasm-blocks -fno-gnu-inline-asm
#define M __asm int 0x2c
#define M2 int
void t1(void) { M }
void t2(void) { __asm int 2ch }
void t3(void) { __asm M2 2ch }
void t4(void) { __asm mov eax, fs:[10h] }
void t5() {
__asm {
int 0x2c ; } asm comments are fun! }{
}
__asm {}
}
int t6() {
__asm int 3 ; } comments for single-line asm
__asm {}
__asm int 4
return 10;
}
void t7() {
__asm {
push ebx
mov ebx, 07h
pop ebx
}
}
void t8() {
__asm nop __asm nop __asm nop
}
void t9() {
__asm nop __asm nop ; __asm nop
}
void t10() {
__asm {
mov eax, 0
__asm {
mov eax, 1
{
mov eax, 2
}
}
}
}
void t11() {
do { __asm mov eax, 0 __asm { __asm mov edx, 1 } } while(0);
}
void t12() {
__asm jmp label // expected-error {{use of undeclared label 'label'}}
}
void t13() {
__asm m{o}v eax, ebx // expected-error {{unknown token in expression}}
}
void t14() {
enum { A = 1, B };
__asm mov eax, offset A // expected-error {{offset operator cannot yet handle constants}}
}
int t_fail() { // expected-note {{to match this}}
__asm
__asm { // expected-error 3 {{expected}} expected-note {{to match this}}