diff options
| author | Ilia Mirkin <[email protected]> | 2017-02-10 01:55:08 -0500 |
|---|---|---|
| committer | Ilia Mirkin <[email protected]> | 2017-02-11 20:25:26 -0500 |
| commit | b38aab50a04b63038a42b7e4da3f8b5e9dbb8f24 (patch) | |
| tree | 27db778bf087d59c6e902437d17d506234b7830a /src/gallium/drivers/nouveau | |
| parent | 2b0580123ed5b87ba00df93d174e20eabd9d1ecd (diff) | |
nv50/ir: convert an ATOM.EXCH without a destination into a store
On SM35 there does not appear to be a way to emit a ATOM.EXCH with a
null destination. This should be functionally equivalent to a plain
store however, so just do that.
Fixes GL45-CTS.compute_shader.atomic-case2 on SM35.
Signed-off-by: Ilia Mirkin <[email protected]>
Diffstat (limited to 'src/gallium/drivers/nouveau')
| -rw-r--r-- | src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp index d79e87dc9f6..79403c93dfd 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp @@ -3549,6 +3549,11 @@ DeadCodeElim::visit(BasicBlock *bb) i->op == OP_SUREDP || i->op == OP_SUREDB) { i->setDef(0, NULL); + if (i->op == OP_ATOM && i->subOp == NV50_IR_SUBOP_ATOM_EXCH) { + i->cache = CACHE_CV; + i->op = OP_STORE; + i->subOp = 0; + } } else if (i->op == OP_LOAD && i->subOp == NV50_IR_SUBOP_LOAD_LOCKED) { i->setDef(0, i->getDef(1)); i->setDef(1, NULL); |