diff options
Diffstat (limited to 'src/gallium/drivers')
| -rw-r--r-- | src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp index c8f07015728..7243b1d2e41 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp @@ -47,8 +47,25 @@ NVC0LegalizeSSA::handleDIV(Instruction *i) int builtin; bld.setPosition(i, false); - bld.mkMovToReg(0, i->getSrc(0)); - bld.mkMovToReg(1, i->getSrc(1)); + + // Generate movs to the input regs for the call we want to generate + for (int s = 0; i->srcExists(s); ++s) { + Instruction *ld = i->getSrc(s)->getInsn(); + assert(ld->getSrc(0) != NULL); + // check if we are moving an immediate, propagate it in that case + if (!ld || ld->fixed || (ld->op != OP_LOAD && ld->op != OP_MOV) || + !(ld->src(0).getFile() == FILE_IMMEDIATE)) + bld.mkMovToReg(s, i->getSrc(s)); + else { + bld.mkMovToReg(s, ld->getSrc(0)); + // Clear the src, to make code elimination possible here before we + // delete the instruction i later + i->setSrc(s, NULL); + if (ld->isDead()) + delete_Instruction(prog, ld); + } + } + switch (i->dType) { case TYPE_U32: builtin = NVC0_BUILTIN_DIV_U32; break; case TYPE_S32: builtin = NVC0_BUILTIN_DIV_S32; break; |