e770bfd997
The i386 sfp-machine.h defines FP_TRAPPING_EXCEPTIONS in a way that is always wrong: it treats a set bit as indicating the exception is trapping, when actually a set bit (both for 387 and SSE floating point) indicates it is masked, and a clear bit indicates it is trapping. This patch fixes this bug. Bootstrapped with no regressions on x86_64-unknown-linux-gnu. libgcc: * config/i386/sfp-machine.h (FP_TRAPPING_EXCEPTIONS): Treat clear bits not set bits as indicating trapping exceptions. gcc/testsuite: * gcc.dg/torture/float128-exact-underflow.c: New test. From-SVN: r215347 |
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| .. | ||
| 32 | ||
| 64 | ||
| cpuinfo.c | ||
| crtfastmath.c | ||
| crti.S | ||
| crtn.S | ||
| crtprec.c | ||
| cygming-crtbegin.c | ||
| cygming-crtend.c | ||
| cygwin.S | ||
| darwin-lib.h | ||
| dragonfly-unwind.h | ||
| enable-execute-stack-mingw32.c | ||
| gthr-win32.c | ||
| gthr-win32.h | ||
| libgcc-bsd.ver | ||
| libgcc-cygming.ver | ||
| libgcc-darwin.10.4.ver | ||
| libgcc-darwin.10.5.ver | ||
| libgcc-glibc.ver | ||
| libgcc-sol2.ver | ||
| linux-unwind.h | ||
| morestack.S | ||
| sfp-exceptions.c | ||
| sfp-machine.h | ||
| sol2-c1.S | ||
| sol2-unwind.h | ||
| t-chkstk | ||
| t-cpuinfo | ||
| t-crtfm | ||
| t-crtpc | ||
| t-crtstuff | ||
| t-cygming | ||
| t-cygwin | ||
| t-darwin | ||
| t-dlldir | ||
| t-dlldir-x | ||
| t-dw2-eh | ||
| t-freebsd | ||
| t-gthr-win32 | ||
| t-interix | ||
| t-linux | ||
| t-mingw-pthread | ||
| t-mingw32 | ||
| t-nto | ||
| t-seh-eh | ||
| t-sjlj-eh | ||
| t-slibgcc-cygming | ||
| t-softfp | ||
| t-sol2 | ||
| t-stack-i386 | ||
| value-unwind.h | ||
| w32-unwind.h | ||