Avoid collisions in value names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47725 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index 5b1391b..4816ba2 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -1156,9 +1156,11 @@
char ch = *I;
if (!((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') ||
- (ch >= '0' && ch <= '9') || ch == '_'))
- VarName += '_';
- else
+ (ch >= '0' && ch <= '9') || ch == '_')) {
+ char buffer[5];
+ sprintf(buffer, "_%x_", ch);
+ VarName += buffer;
+ } else
VarName += ch;
}