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| author | Jakub Jelinek <jakub@redhat.com> | 2017-10-24 12:44:56 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2017-10-24 12:44:56 +0200 |
| commit | b75200689b0d86be5c3b91afb7303575359622ae (patch) | |
| tree | ffea2d11e20212b983fdd0aaa7477e99a37899ee /gcc/tree-ssa-phiopt.c | |
| parent | 585a449d7307c46919fa9b2d6a0ee63fcb692789 (diff) | |
| download | gcc-b75200689b0d86be5c3b91afb7303575359622ae.zip gcc-b75200689b0d86be5c3b91afb7303575359622ae.tar.gz gcc-b75200689b0d86be5c3b91afb7303575359622ae.tar.bz2 | |
re PR rtl-optimization/82628 (wrong code at -Os on x86_64-linux-gnu in the 32-bit mode)
PR target/82628
* config/i386/i386.md (addcarry<mode>, subborrow<mode>): Change
patterns to better describe from which operation the CF is computed.
(addcarry<mode>_0, subborrow<mode>_0): New patterns.
* config/i386/i386.c (ix86_expand_builtin) <case handlecarry>: Pass
one LTU with [DT]Imode and another one with [SD]Imode. If arg0
is 0, use _0 suffixed expanders instead of emitting a comparison
before it.
From-SVN: r254039
Diffstat (limited to 'gcc/tree-ssa-phiopt.c')
0 files changed, 0 insertions, 0 deletions