r214401 - ms-inline-asm: Add a test to ensure that call doesn't clobber eax.

Ehsan Akhgari ehsan.akhgari at gmail.com
Thu Jul 31 06:43:17 PDT 2014


Author: ehsan
Date: Thu Jul 31 08:43:17 2014
New Revision: 214401

URL: http://llvm.org/viewvc/llvm-project?rev=214401&view=rev
Log:
ms-inline-asm: Add a test to ensure that call doesn't clobber eax.

Note that it's not clear whether this is the right behavior, please see
the review for the discussion.

Reviewers: rnk

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D4577

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=214401&r1=214400&r2=214401&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/ms-inline-asm.c (original)
+++ cfe/trunk/test/CodeGen/ms-inline-asm.c Thu Jul 31 08:43:17 2014
@@ -504,3 +504,9 @@ void t41(unsigned short a) {
 // CHECK: mov ss, word ptr $5
 // CHECK: "*m,*m,*m,*m,*m,*m,~{dirflag},~{fpsr},~{flags}"(i16* {{.*}}, i16* {{.*}}, i16* {{.*}}, i16* {{.*}}, i16* {{.*}}, i16* {{.*}})
 }
+
+void call_clobber() {
+  __asm call t41
+  // CHECK-LABEL: define void @call_clobber
+  // CHECK: call void asm sideeffect inteldialect "call $0", "r,~{dirflag},~{fpsr},~{flags}"(void (i16)* @t41)
+}





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