From c5b20b5283485b515997c6cebf8ea57b4f8f91f8 Mon Sep 17 00:00:00 2001
From: Eli Friedman <eli.friedman@gmail.com>
Date: Sat, 9 Apr 2011 08:18:08 +0000
Subject: PR8369: make __attribute((regparm(0))) work correctly.  Original
 patch by pageexec@freemail.hu, tweaks by me.

llvm-svn: 129206
---
 clang/lib/CodeGen/CGCall.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'clang/lib/CodeGen/CGCall.h')

diff --git a/clang/lib/CodeGen/CGCall.h b/clang/lib/CodeGen/CGCall.h
index fed29a2cf44..f5a84ec99f4 100644
--- a/clang/lib/CodeGen/CGCall.h
+++ b/clang/lib/CodeGen/CGCall.h
@@ -83,6 +83,7 @@ namespace CodeGen {
     ArgInfo *Args;
 
     /// How many arguments to pass inreg.
+    bool HasRegParm;
     unsigned RegParm;
 
   public:
@@ -90,7 +91,7 @@ namespace CodeGen {
     typedef ArgInfo *arg_iterator;
 
     CGFunctionInfo(unsigned CallingConvention, bool NoReturn,
-                   unsigned RegParm, CanQualType ResTy,
+                   bool HasRegParm, unsigned RegParm, CanQualType ResTy,
                    const CanQualType *ArgTys, unsigned NumArgTys);
     ~CGFunctionInfo() { delete[] Args; }
 
@@ -116,6 +117,7 @@ namespace CodeGen {
       EffectiveCallingConvention = Value;
     }
 
+    bool getHasRegParm() const { return HasRegParm; }
     unsigned getRegParm() const { return RegParm; }
 
     CanQualType getReturnType() const { return Args[0].type; }
@@ -126,6 +128,7 @@ namespace CodeGen {
     void Profile(llvm::FoldingSetNodeID &ID) {
       ID.AddInteger(getCallingConvention());
       ID.AddBoolean(NoReturn);
+      ID.AddBoolean(HasRegParm);
       ID.AddInteger(RegParm);
       getReturnType().Profile(ID);
       for (arg_iterator it = arg_begin(), ie = arg_end(); it != ie; ++it)
@@ -139,6 +142,7 @@ namespace CodeGen {
                         Iterator end) {
       ID.AddInteger(Info.getCC());
       ID.AddBoolean(Info.getNoReturn());
+      ID.AddBoolean(Info.getHasRegParm());
       ID.AddInteger(Info.getRegParm());
       ResTy.Profile(ID);
       for (; begin != end; ++begin) {
-- 
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