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gallium: fix broken TGSI_FILE_CONSTANT case, use ppc_reserver_register()

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This commit is contained in:
Brian Paul 2008-10-22 13:59:11 -06:00
parent ebdc399d83
commit da63edd720
1 changed files with 13 additions and 8 deletions
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21
src/gallium/auxiliary/tgsi/tgsi_ppc.c
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@ -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);