99507e6c10
ubsan: Don't assume that Clang provides __int128 unless it advertises that it does.
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llvm-svn: 168857
2012-11-29 05:59:30 +00:00
6122d0692b
Support for building the ubsan runtime when using the autoconf build system on
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Darwin. Patch by Jean-Daniel Dupas, tweaked by Jonathan Sauer, simplified
somewhat by me.
llvm-svn: 167889
2012-11-13 23:55:06 +00:00
130b748b72
Use a better test for __int128 support, which works on old GCC versions.
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llvm-svn: 165912
2012-10-14 23:28:55 +00:00
eea8a48218
Fix the bootstrap of CompilerRT with host compilers that don't support
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emulating 128-bit arithmetic on 32-bit x86 targets. This should get the
bootstrap back for GCC 4.6 at least.
Suggestions on better ways to do the detection here are welcome...
llvm-svn: 165863
2012-10-13 02:30:10 +00:00
7247b23efc
-fcatch-undefined-behavior: Runtime library support for trapping conversions to or
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from a floating-point type where the source value is not in the range of
representable values of the destination type.
llvm-svn: 165844
2012-10-12 22:57:15 +00:00
b6fb381dba
-fcatch-undefined-behavior: store the type name directly at the end of a type descriptor. 5% binary size reduction due to fewer relocations.
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llvm-svn: 165571
2012-10-09 23:55:18 +00:00
68b3014cd3
Add a runtime diagnostics library for Clang's -fcatch-undefined-behavior.
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llvm-svn: 165533
2012-10-09 19:34:32 +00:00
Richard Smith