| commit | ca6c7c2e4af8538e0d46432b582d4b9e811990e9 | |
| author | jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Thu, 18 Sep 2014 12:00:21 +0000 (18 12:00 +0000) | ||
| committer | jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Thu, 18 Sep 2014 12:00:21 +0000 (18 12:00 +0000) | ||
| tree | f8eda81754a6c8acd78502eec0b4a7e3ff0fcef7 | treesnapshot (tar.gz zip) |
| parent | 1445381430e5b67a3d1a96a93b4ba60e6a1cf7a8 | commitdiff |
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@215347 138bc75d-0d04-0410-961f-82ee72b054a4
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@215347 138bc75d-0d04-0410-961f-82ee72b054a4