Change a build-attribute REQUIRES check to use supported not requested.

src/IceCompiler.cpp

Index: src/IceCompiler.cpp
diff --git a/src/IceCompiler.cpp b/src/IceCompiler.cpp
index 7c8b791969e63feafdac29b17421876e2640befc..256a844b28cabb4662b523f7d9b3ff0239738e85 100644
--- a/src/IceCompiler.cpp
+++ b/src/IceCompiler.cpp
@@ -48,9 +48,6 @@ struct {
 // Stream is non-null.
 void ValidateAndGenerateBuildAttributes(const ClFlags &Flags, Ostream *Stream) {
   if (Stream) {
-    // List the requested target.
-    *Stream << Flags.getTargetArch() << "\n";
-
 // List the supported targets.

[Jim Stichnoth, 2015/05/15 23:21:50]

This comment's indentation is weird (but was also weird before) - make sure
clang-format agrees with it?

[jvoung (off chromium), 2015/05/15 23:50:30]

Hmm, clang-format seems to force the comment to stick with the #define indent
level, and also forces the #define to be flushed left.

I moved the comment before the if (Stream), as one weird trick to get better
indenting.

[Jim Stichnoth, 2015/05/15 23:52:06]

No problem either way, just want to avoid the "next guy" getting an unexpected
formatting change from clang-format.

 #define SUBZERO_TARGET(TARGET) *Stream << "target_" #TARGET << "\n";
 #include "llvm/Config/SZTargets.def"