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-rw-r--r--src/compiler/nir/nir_lower_to_source_mods.c53
-rw-r--r--src/compiler/nir/nir_validate.c6
2 files changed, 19 insertions, 40 deletions
diff --git a/src/compiler/nir/nir_lower_to_source_mods.c b/src/compiler/nir/nir_lower_to_source_mods.c
index 3315a18670b..63ef4043fe2 100644
--- a/src/compiler/nir/nir_lower_to_source_mods.c
+++ b/src/compiler/nir/nir_lower_to_source_mods.c
@@ -78,13 +78,13 @@ nir_lower_to_source_mods_block(nir_block *block,
case nir_type_float:
if (!(options & nir_lower_float_source_mods))
continue;
- if (parent->op != nir_op_fmov)
+ if (parent->op != nir_op_fabs && parent->op != nir_op_fneg)
continue;
break;
case nir_type_int:
if (!(options & nir_lower_int_source_mods))
continue;
- if (parent->op != nir_op_imov)
+ if (parent->op != nir_op_iabs && parent->op != nir_op_ineg)
continue;
break;
default:
@@ -98,10 +98,19 @@ nir_lower_to_source_mods_block(nir_block *block,
if (!parent->src[0].src.is_ssa)
continue;
- if (!lower_abs && parent->src[0].abs)
+ if (!lower_abs && (parent->op == nir_op_fabs &&
+ parent->op == nir_op_iabs))
continue;
nir_instr_rewrite_src(instr, &alu->src[i].src, parent->src[0].src);
+
+ /* Apply any modifiers that come from the parent opcode */
+ if (parent->op == nir_op_fneg || parent->op == nir_op_ineg)
+ alu_src_consume_negate(&alu->src[i]);
+ if (parent->op == nir_op_fabs || parent->op == nir_op_iabs)
+ alu_src_consume_abs(&alu->src[i]);
+
+ /* Apply modifiers from the parent source */
if (parent->src[0].negate)
alu_src_consume_negate(&alu->src[i]);
if (parent->src[0].abs)
@@ -120,41 +129,6 @@ nir_lower_to_source_mods_block(nir_block *block,
progress = true;
}
- if (options & nir_lower_float_source_mods) {
- switch (alu->op) {
- case nir_op_fsat:
- alu->op = nir_op_fmov;
- alu->dest.saturate = true;
- break;
- case nir_op_fneg:
- alu->op = nir_op_fmov;
- alu->src[0].negate = !alu->src[0].negate;
- break;
- case nir_op_fabs:
- alu->op = nir_op_fmov;
- alu->src[0].abs = true;
- alu->src[0].negate = false;
- break;
- default:
- break;
- }
- }
-
- if (options & nir_lower_int_source_mods) {
- switch (alu->op) {
- case nir_op_ineg:
- alu->op = nir_op_imov;
- alu->src[0].negate = !alu->src[0].negate;
- break;
- case nir_op_iabs:
- alu->op = nir_op_imov;
- alu->src[0].abs = true;
- alu->src[0].negate = false;
- break;
- default:
- break;
- }
- }
/* We've covered sources. Now we're going to try and saturate the
* destination if we can.
*/
@@ -188,8 +162,7 @@ nir_lower_to_source_mods_block(nir_block *block,
continue;
}
- if (child_alu->op != nir_op_fsat &&
- !(child_alu->op == nir_op_fmov && child_alu->dest.saturate)) {
+ if (child_alu->op != nir_op_fsat) {
all_children_are_sat = false;
continue;
}
diff --git a/src/compiler/nir/nir_validate.c b/src/compiler/nir/nir_validate.c
index b087b0da12d..30c4a9f5c62 100644
--- a/src/compiler/nir/nir_validate.c
+++ b/src/compiler/nir/nir_validate.c
@@ -217,6 +217,9 @@ validate_alu_src(nir_alu_instr *instr, unsigned index, validate_state *state)
{
nir_alu_src *src = &instr->src[index];
+ if (instr->op == nir_op_fmov || instr->op == nir_op_imov)
+ assert(!src->abs && !src->negate);
+
unsigned num_components = nir_src_num_components(src->src);
for (unsigned i = 0; i < NIR_MAX_VEC_COMPONENTS; i++) {
validate_assert(state, src->swizzle[i] < NIR_MAX_VEC_COMPONENTS);
@@ -319,6 +322,9 @@ validate_alu_dest(nir_alu_instr *instr, validate_state *state)
{
nir_alu_dest *dest = &instr->dest;
+ if (instr->op == nir_op_fmov || instr->op == nir_op_imov)
+ assert(!dest->saturate);
+
unsigned dest_size = nir_dest_num_components(dest->dest);
/*
* validate that the instruction doesn't write to components not in the