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-rw-r--r--clang/lib/Basic/Targets/X86.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/clang/lib/Basic/Targets/X86.cpp b/clang/lib/Basic/Targets/X86.cpp
index 76d8ab8146f..d618c90b05c 100644
--- a/clang/lib/Basic/Targets/X86.cpp
+++ b/clang/lib/Basic/Targets/X86.cpp
@@ -917,6 +917,11 @@ void X86TargetInfo::getTargetDefines(const LangOptions &Opts,
DefineStd(Builder, "i386", Opts);
}
+ Builder.defineMacro("__SEG_GS");
+ Builder.defineMacro("__SEG_FS");
+ Builder.defineMacro("__seg_gs", "__attribute__((address_space(256)))");
+ Builder.defineMacro("__seg_fs", "__attribute__((address_space(257)))");
+
// Subtarget options.
// FIXME: We are hard-coding the tune parameters based on the CPU, but they
// truly should be based on -mtune options.
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