clang/test/CodeGen/X86/ms_fmul.c

   1 // REQUIRES: x86-registered-target
   2
   3 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -fasm-blocks -emit-llvm %s -o - | FileCheck %s
   4 // RUN: %clang_cc1 -triple i386-unknown-unknown -fasm-blocks -emit-llvm %s -o - | FileCheck %s
   5
   6 // This test is designed to check if we use the mem size info for parsing MS
   7 // InlineAsm which use a global variable and one/two registers in a memory
   8 // expression. If we not use this mem size info, there will be error of
   9 // ambiguous operand size for some instructions. (e.g. 'fmul')
  10 __attribute__((aligned (16)))
  11 static const unsigned int static_const_table[] = { 0x00800000, };
  12
  13
  14 void __attribute__ ((naked)) foo(void)
  15 {__asm{
  16     fmul qword ptr [static_const_table + 0x00f0 +edx]
  17     ret
  18 }}
  19
  20 // CHECK-LABEL: foo
  21 // CHECK: call void asm sideeffect inteldialect "fmul qword ptr $0[edx + $$240]\0A\09ret"