Author: ctopper
Date: Tue Apr 10 11:43:44 2018
New Revision: 329738
URL: http://llvm.org/viewvc/llvm-project?rev=329738&view=rev
Log:
[X86] Add test case for llvm change r329734
This test ensures the popfd instruction in MS inline assembly can properly find
a clobber name for the dirflag register. Previously the register was named
'DF', but it needs to be named 'dirflag' to match the name in the GCC register
name list.
Modified:
cfe/trunk/test/CodeGen/ms-inline-asm.c
Modified: cfe/trunk/test/CodeGen/ms-inline-asm.c
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/ms-inline-asm.c?rev=329738&r1=329737&r2=329738&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/ms-inline-asm.c (original)
+++ cfe/trunk/test/CodeGen/ms-inline-asm.c Tue Apr 10 11:43:44 2018
@@ -754,6 +754,13 @@ void mxcsr() {
// CHECK-LABEL: define void @mxcsr
// CHECK: call void asm sideeffect inteldialect "fxrstor $0",
"=*m,~{dirflag},~{fpsr},~{flags}"
+// Make sure we can find the register for the dirflag for popfd
+void dirflag() {
+ __asm popfd
+}
+// CHECK-LABEL: define void @dirflag
+// CHECK: call void asm sideeffect inteldialect "popfd",
"~{dirflag},~{flags},~{esp},~{dirflag},~{fpsr},~{flags}"
+
typedef union _LARGE_INTEGER {
struct {
unsigned int LowPart;
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