OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Revert "nir/copy_propagate: do not copy-propagate MOV srcs with source modifiers"

Browse Source 
The change proposed in the review leads to piglit regressions because
is_move() is used in other places and relies on the checks for source
modifiers to be there.

Revert this until we agree on a better solution.
This commit is contained in:
Iago Toral Quiroga
2015-11-13 08:51:06 +01:00
parent 5f004fd197
commit a29d922c1a
1 changed files with 7 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
src/glsl/nir/nir_opt_copy_propagate.c
View File

@@ -41,6 +41,11 @@ static bool is_move(nir_alu_instr *instr)
if (instr->dest.saturate)
return false;
/* we handle modifiers in a separate pass */
if (instr->src[0].abs || instr->src[0].negate)
return false;
if (!instr->src[0].src.is_ssa)
return false;
@@ -60,13 +65,9 @@ static bool is_vec(nir_alu_instr *instr)
}
static bool
is_simple_move(nir_alu_instr *instr)
is_swizzleless_move(nir_alu_instr *instr)
{
if (is_move(instr)) {
/* We handle modifiers in a separate pass */
if (instr->src[0].negate || instr->src[0].abs)
return false;
for (unsigned i = 0; i < 4; i++) {
if (!((instr->dest.write_mask >> i) & 1))
break;
@@ -80,10 +81,6 @@ is_simple_move(nir_alu_instr *instr)
if (instr->src[i].swizzle[0] != i)
return false;
/* We handle modifiers in a separate pass */
if (instr->src[i].negate || instr->src[i].abs)
return false;
if (def == NULL) {
def = instr->src[i].src.ssa;
} else if (instr->src[i].src.ssa != def) {
@@ -110,7 +107,7 @@ copy_prop_src(nir_src *src, nir_instr *parent_instr, nir_if *parent_if)
return false;
nir_alu_instr *alu_instr = nir_instr_as_alu(src_instr);
if (!is_simple_move(alu_instr))
if (!is_swizzleless_move(alu_instr))
return false;
/* Don't let copy propagation land us with a phi that has more