From cf5014771d0e33c984b4b6946d6b0f181c3108e5 Mon Sep 17 00:00:00 2001 From: Benjamin Kramer Date: Wed, 28 Dec 2011 15:47:06 +0000 Subject: Add a target hook for FLT_EVAL_METHOD and use it to set the value on x86 with sse disabled. x87 math evaluates everything with 80 bits precision, so we have to set FLT_EVAL_METHOD to "2". llvm-svn: 147311 --- clang/lib/Frontend/InitPreprocessor.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'clang/lib/Frontend/InitPreprocessor.cpp') diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp index c67eba40b59..f601f3d73ab 100644 --- a/clang/lib/Frontend/InitPreprocessor.cpp +++ b/clang/lib/Frontend/InitPreprocessor.cpp @@ -513,7 +513,7 @@ static void InitializePredefinedMacros(const TargetInfo &TI, } // Macros to control C99 numerics and - Builder.defineMacro("__FLT_EVAL_METHOD__", "0"); + Builder.defineMacro("__FLT_EVAL_METHOD__", Twine(TI.getFloatEvalMethod())); Builder.defineMacro("__FLT_RADIX__", "2"); int Dig = PickFP(&TI.getLongDoubleFormat(), -1/*FIXME*/, 17, 21, 33, 36); Builder.defineMacro("__DECIMAL_DIG__", Twine(Dig)); -- cgit v1.2.3