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nv50: make IF condition safe

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Don't assume that a SET that writes to IF's argument
directly precedes the IF.
This commit is contained in:
Christoph Bumiller 2009-11-01 14:04:54 +01:00
parent 99e308a0e0
commit 496c9eaacf
1 changed files with 3 additions and 1 deletions
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4
src/gallium/drivers/nv50/nv50_program.c
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@ -2026,7 +2026,9 @@ nv50_program_tx_insn(struct nv50_pc *pc,
case TGSI_OPCODE_IF: case TGSI_OPCODE_IF:
/* emitting a join_at may not be necessary */ /* emitting a join_at may not be necessary */
assert(pc->if_lvl < MAX_IF_DEPTH); assert(pc->if_lvl < MAX_IF_DEPTH);
set_pred_wr(pc, 1, 0, pc->if_cond); /* set_pred_wr(pc, 1, 0, pc->if_cond); */
emit_cvt(pc, NULL, src[0][0], 0, CVTOP_ABS | CVTOP_RN,
CVT_F32_F32);
emit_branch(pc, 0, 2, &pc->br_join[pc->if_lvl]); emit_branch(pc, 0, 2, &pc->br_join[pc->if_lvl]);
pc->if_insn[pc->if_lvl++] = pc->p->exec_tail; pc->if_insn[pc->if_lvl++] = pc->p->exec_tail;
terminate_mbb(pc); terminate_mbb(pc);