diff options
| author | Ilia Mirkin <[email protected]> | 2015-12-01 15:01:11 -0500 |
|---|---|---|
| committer | Ilia Mirkin <[email protected]> | 2015-12-02 18:51:15 -0500 |
| commit | 52a800a687ee68483fe7cd83b137630b74e2127b (patch) | |
| tree | 6fa898797b2099afc3b868ed89eeb415b07df4ea /src | |
| parent | 043d4275388ddb5d45f52344a2e3a5e366c91f19 (diff) | |
nv50/ir: allow immediate 0 to be loaded anywhere
There's a post-RA fixup to replace 0's with $r63 (or $r127 if too many
regs are used), so just as nvc0, let an immediate 0 be loaded anywhere.
Signed-off-by: Ilia Mirkin <[email protected]>
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/nouveau/codegen/nv50_ir_target_nv50.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nv50.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nv50.cpp index 94cf0f0e05e..a0fb14444d2 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nv50.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nv50.cpp @@ -268,6 +268,12 @@ TargetNV50::insnCanLoad(const Instruction *i, int s, { DataFile sf = ld->src(0).getFile(); + // immediate 0 can be represented by GPR $r63/$r127 + if (sf == FILE_IMMEDIATE && ld->getSrc(0)->reg.data.u64 == 0) + return (!i->isPseudo() && + !i->asTex() && + i->op != OP_EXPORT && i->op != OP_STORE); + if (sf == FILE_IMMEDIATE && (i->predSrc >= 0 || i->flagsDef >= 0)) return false; if (s >= opInfo[i->op].srcNr) |