maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

When mangling an APSInt with the ms abi, make sure to look at all nibbles. 

Currently, it's ignored if the number of set bits isn't divisible by 4.

llvm-svn: 165116
This commit is contained in:
Nico Weber 2012-10-03 13:39:49 +00:00
parent 30abda1612
commit 90a415e7ca
2 changed files with 10 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
clang/lib/AST/MicrosoftMangle.cpp
View File

@ -350,7 +350,7 @@ void MicrosoftCXXNameMangler::mangleNumber(const llvm::APSInt &Value) {
char *CurPtr = EndPtr;
llvm::APSInt NibbleMask(Value.getBitWidth(), Value.isUnsigned());
NibbleMask = 0xf;
for (int i = 0, e = Value.getActiveBits() / 4; i != e; ++i) {
for (int i = 0, e = (Value.getActiveBits() + 3) / 4; i != e; ++i) {
*--CurPtr = 'A' + Temp.And(NibbleMask).getLimitedValue(0xf);
Temp = Temp.lshr(4);
}

9
clang/test/CodeGenCXX/mangle-ms-templates.cpp
View File

@ -54,6 +54,15 @@ void template_mangling() {
IntTemplate<11> eleven;
// CHECK: call {{.*}} @"\01??0?$IntTemplate@$0L@@@QAE@XZ"
IntTemplate<256> _256;
// CHECK: call {{.*}} @"\01??0?$IntTemplate@$0BAA@@@QAE@XZ"
IntTemplate<513> _513;
// CHECK: call {{.*}} @"\01??0?$IntTemplate@$0CAB@@@QAE@XZ"
IntTemplate<1026> _1026;
// CHECK: call {{.*}} @"\01??0?$IntTemplate@$0EAC@@@QAE@XZ"
IntTemplate<65535> ffff;
// CHECK: call {{.*}} @"\01??0?$IntTemplate@$0PPPP@@@QAE@XZ"
}