forked from OSchip/llvm-project
61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
// REQUIRES: x86-registered-target
|
|
// RUN: %clang_cc1 %s -triple i386-pc-windows-msvc -fms-extensions -S -o - | FileCheck %s
|
|
|
|
// Yes, this is an assembly test from Clang, because we need to make it all the
|
|
// way through code generation to know if our call became a direct, pc-relative
|
|
// call or an indirect call through memory.
|
|
|
|
int k(int);
|
|
__declspec(dllimport) int kimport(int);
|
|
int (*kptr)(int);
|
|
int (*gptr())(int);
|
|
|
|
int foo() {
|
|
// CHECK-LABEL: _foo:
|
|
int (*r)(int) = gptr();
|
|
|
|
// Simple case: direct call.
|
|
__asm call k;
|
|
// CHECK: calll _k
|
|
|
|
// Marginally harder: indirect calls, via dllimport or function pointer.
|
|
__asm call r;
|
|
// CHECK: calll *({{.*}})
|
|
__asm call kimport;
|
|
// CHECK: calll *({{.*}})
|
|
|
|
// Broken case: Call through a global function pointer.
|
|
__asm call kptr;
|
|
// CHECK: calll _kptr
|
|
// CHECK-FIXME: calll *_kptr
|
|
}
|
|
|
|
int bar() {
|
|
// CHECK-LABEL: _bar:
|
|
__asm jmp k;
|
|
// CHECK: jmp _k
|
|
}
|
|
|
|
int baz() {
|
|
// CHECK-LABEL: _baz:
|
|
__asm mov eax, k;
|
|
// CHECK: movl _k, %eax
|
|
__asm mov eax, kptr;
|
|
// CHECK: movl _kptr, %eax
|
|
}
|
|
|
|
// Test that this asm blob doesn't require more registers than available. This
|
|
// has to be an LLVM code generation test.
|
|
|
|
void __declspec(naked) naked() {
|
|
__asm pusha
|
|
__asm call k
|
|
__asm popa
|
|
__asm ret
|
|
// CHECK-LABEL: _naked:
|
|
// CHECK: pushal
|
|
// CHECK-NEXT: calll _k
|
|
// CHECK-NEXT: popal
|
|
// CHECK-NEXT: retl
|
|
}
|