diff options
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_ppc.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_ppc.c b/src/gallium/auxiliary/tgsi/tgsi_ppc.c index 112e736523..dbf215c0d5 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_ppc.c +++ b/src/gallium/auxiliary/tgsi/tgsi_ppc.c @@ -1108,10 +1108,15 @@ emit_fetch(struct gen_context *gen, int offset_reg = ppc_allocate_register(gen->f); int offset = (reg->SrcRegister.Index * 4 + swizzle) * 4; ppc_li(gen->f, offset_reg, offset); - /* load vector word */ + /* Load 4-byte word into vector register. + * The vector slot depends on the effective address we load from. + * We know that our constants start at a 16-byte boundary so we + * know that 'swizzle' tells us which vector slot will have the + * loaded word. The other vector slots will be undefined. + */ ppc_lvewx(gen->f, vec_reg, gen->const_reg, offset_reg); - /* splat word[0] across vector */ - ppc_vspltw(gen->f, vec_reg, vec_reg, 0); + /* splat word[swizzle] across the vector reg */ + ppc_vspltw(gen->f, vec_reg, vec_reg, swizzle); ppc_release_register(gen->f, offset_reg); } break; @@ -2635,11 +2640,11 @@ tgsi_emit_ppc(const struct tgsi_token *tokens, tgsi_parse_init( &parse, tokens ); gen.f = func; - gen.inputs_reg = 3; /* first function param */ - gen.outputs_reg = 4; /* second function param */ - gen.temps_reg = 5; /* ... */ - gen.immed_reg = 6; - gen.const_reg = 7; + gen.inputs_reg = ppc_reserve_register(func, 3); /* first function param */ + gen.outputs_reg = ppc_reserve_register(func, 4); /* second function param */ + gen.temps_reg = ppc_reserve_register(func, 5); /* ... */ + gen.immed_reg = ppc_reserve_register(func, 6); + gen.const_reg = ppc_reserve_register(func, 7); emit_prologue(func); |