Commit Graph

5 Commits

Author SHA1 Message Date
Matthias Braun 325cd2c98a ScheduleDAGInstrs: Add condjump deps to addSchedBarrierDeps()
addSchedBarrierDeps() is supposed to add use operands to the ExitSU
node. The current implementation adds uses for calls/barrier instruction
and the MBB live-outs in all other cases. The use
operands of conditional jump instructions were missed.

Also added code to macrofusion to set the latencies between nodes to
zero to avoid problems with the fusing nodes lingering around in the
pending list now.

Differential Revision: https://reviews.llvm.org/D25140

llvm-svn: 286544
2016-11-11 01:34:21 +00:00
Matt Arsenault 5d8eb25e78 AMDGPU: Use unsigned compare for eq/ne
For some reason there are both of these available, except
for scalar 64-bit compares which only has u64. I'm not sure
why there are both (I'm guessing it's for the one bit inputs we
don't use), but for consistency always using the
unsigned one.

llvm-svn: 282832
2016-09-30 01:50:20 +00:00
Matt Arsenault bbb47da8a1 AMDGPU: Support commuting with immediate in src0
llvm-svn: 280970
2016-09-08 17:19:29 +00:00
Matt Arsenault 2209625387 AMDGPU: Preserve undef flag on vcc when shrinking v_cndmask_b32
The implicit operand is added by the initial instruction construction,
so this was adding an additional vcc use. The original one
was missing the undef flag the original condition had,
so the verifier would complain.

llvm-svn: 273182
2016-06-20 18:34:00 +00:00
Matt Arsenault 58ddad5bd6 AMDGPU: v_cndmask_b32 does not def vcc
Fixes verifier errors after SIShrinkInstructions.

llvm-svn: 272351
2016-06-10 00:18:41 +00:00