[inline asm][gcc-compatiblity] "=i" output constraint support
Ignore ‘i’,’n’,’E’,’F’ as output constraints in inline assembly (gcc compatibility)
Differential Revision: https://reviews.llvm.org/D31383
llvm-svn: 306297
diff --git a/clang/lib/Basic/TargetInfo.cpp b/clang/lib/Basic/TargetInfo.cpp
index 8cfd8bd..4bcebad 100644
--- a/clang/lib/Basic/TargetInfo.cpp
+++ b/clang/lib/Basic/TargetInfo.cpp
@@ -507,6 +507,11 @@
case '?': // Disparage slightly code.
case '!': // Disparage severely.
case '*': // Ignore for choosing register preferences.
+ case 'i': // Ignore i,n,E,F as output constraints (match from the other
+ // chars)
+ case 'n':
+ case 'E':
+ case 'F':
break; // Pass them.
}