| commit | 92eec784a3f1863397ec00d333d16469795627bf | |
| author | Julian Seward <jseward@acm.org> | |
| Sat, 19 Sep 2020 10:05:26 +0000 (19 12:05 +0200) | ||
| committer | Julian Seward <jseward@acm.org> | |
| Sat, 19 Sep 2020 10:05:26 +0000 (19 12:05 +0200) | ||
| tree | 9a00210c06882c3bcc12a0a404390424241e8f3a | treesnapshot (tar.gz zip) |
| parent | 17d2989a9e9bb07d4b5a2b9607e584845c494b1b | commitdiff |
Bug 425820 - Failure to recognize vpcmpeqq as a dependency breaking idiom.
In the IR optimiser (ir_opt.c): Recognise the following IROps as
dependency-breaking ops that generate an all-ones output: Iop_CmpEQ16x4
Iop_CmpEQ32x2 Iop_CmpEQ64x2 Iop_CmpEQ8x32 Iop_CmpEQ16x16 Iop_CmpEQ64x4. I
think this fixes all the known cases for sizes 32 bits to 256 bits. It also
fixes bug 425820.
In the IR optimiser (ir_opt.c): Recognise the following IROps as
dependency-breaking ops that generate an all-ones output: Iop_CmpEQ16x4
Iop_CmpEQ32x2 Iop_CmpEQ64x2 Iop_CmpEQ8x32 Iop_CmpEQ16x16 Iop_CmpEQ64x4. I
think this fixes all the known cases for sizes 32 bits to 256 bits. It also
fixes bug 425820.
| VEX/priv/ir_opt.c | diffblobblamehistory |