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| author | Joseph Myers <joseph@codesourcery.com> | 2014-09-18 13:00:21 +0100 |
|---|---|---|
| committer | Joseph Myers <jsm28@gcc.gnu.org> | 2014-09-18 13:00:21 +0100 |
| commit | e770bfd997bb5803b88ca4081bdbca3e250fc92e (patch) | |
| tree | f8eda81754a6c8acd78502eec0b4a7e3ff0fcef7 /gcc/system.h | |
| parent | b5a260238027e86912c39df2147e345ca8a6ed26 (diff) | |
| download | gcc-e770bfd997bb5803b88ca4081bdbca3e250fc92e.zip gcc-e770bfd997bb5803b88ca4081bdbca3e250fc92e.tar.gz gcc-e770bfd997bb5803b88ca4081bdbca3e250fc92e.tar.bz2 | |
Fix i386 FP_TRAPPING_EXCEPTIONS.
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
Diffstat (limited to 'gcc/system.h')
0 files changed, 0 insertions, 0 deletions