From: Christoph Bumiller <e0425955@student.tuwien.ac.at>
Date: Sun, 12 Sep 2010 21:11:30 +0000 (+0200)
Subject: nv50: MOV TEMP[0], -CONST[0] must be float32 negation
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=3b3c20744f2ea90f6aaae33b337bdc5e135f3198;p=mesa.git

nv50: MOV TEMP[0], -CONST[0] must be float32 negation
---

diff --git a/src/gallium/drivers/nv50/nv50_tgsi_to_nc.c b/src/gallium/drivers/nv50/nv50_tgsi_to_nc.c
index 8ad0b18c792..54d6fb960f8 100644
--- a/src/gallium/drivers/nv50/nv50_tgsi_to_nc.c
+++ b/src/gallium/drivers/nv50/nv50_tgsi_to_nc.c
@@ -1075,7 +1075,7 @@ emit_fetch(struct bld_context *bld, const struct tgsi_full_instruction *insn,
    const struct tgsi_full_src_register *src = &insn->Src[s];
    struct nv_value *res;
    struct nv_value *ptr = NULL;
-   unsigned idx, swz, dim_idx, ind_idx, ind_swz;
+   unsigned idx, swz, dim_idx, ind_idx, ind_swz, sgn;
    ubyte type = infer_src_type(insn->Instruction.Opcode);
 
    idx = src->Register.Index;
@@ -1157,10 +1157,15 @@ emit_fetch(struct bld_context *bld, const struct tgsi_full_instruction *insn,
    if (!res)
       return bld_undef(bld, NV_FILE_GPR);
 
+   sgn = tgsi_util_get_full_src_register_sign_mode(src, chan);
+
    if (insn->Instruction.Opcode != TGSI_OPCODE_MOV)
       res->reg.as_type = type;
+   else
+   if (sgn != TGSI_UTIL_SIGN_KEEP) /* apparently "MOV A, -B" assumes float */
+      res->reg.as_type = NV_TYPE_F32;
 
-   switch (tgsi_util_get_full_src_register_sign_mode(src, chan)) {
+   switch (sgn) {
    case TGSI_UTIL_SIGN_KEEP:
       break;
    case TGSI_UTIL_SIGN_CLEAR: