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r600g: fix replace_gpr_with_pv_ps

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Instructions with 3 source operands have no write mask, so we may replace their
destinations with PV/PS in the next group even if their dst.write is 0.

Note: This is a candidate for the 7.11 branch.

Signed-off-by: Vadim Girlin <vadimgirlin@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit fdb62ef3f5)
This commit is contained in:
Vadim Girlin 2011-08-25 00:32:55 +04:00 • committed by Marek Olšák
parent e87f79c8a4
commit a73c667069
1 changed files with 1 additions and 1 deletions
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2
src/gallium/drivers/r600/r600_asm.c
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@ -823,7 +823,7 @@ static int replace_gpr_with_pv_ps(struct r600_bc *bc,
return r;
for (i = 0; i < max_slots; ++i) {
if(prev[i] && prev[i]->dst.write && !prev[i]->dst.rel) {
if (prev[i] && (prev[i]->dst.write || prev[i]->is_op3) && !prev[i]->dst.rel) {
gpr[i] = prev[i]->dst.sel;
/* cube writes more than PV.X */
if (!is_alu_cube_inst(bc, prev[i]) && is_alu_reduction_inst(bc, prev[i]))