summaryrefslogtreecommitdiffstats
path: root/src/mesa/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/drivers')
-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4.h1
-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4_reg_allocate.cpp11
-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp21
3 files changed, 12 insertions, 21 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.h b/src/mesa/drivers/dri/i965/brw_vec4.h
index d6d6c8a904b..a647215b7ec 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.h
+++ b/src/mesa/drivers/dri/i965/brw_vec4.h
@@ -427,7 +427,6 @@ public:
src_reg orig_src,
int base_offset);
void emit_scratch_write(vec4_instruction *inst,
- src_reg temp,
int base_offset);
void emit_pull_constant_load(vec4_instruction *inst,
dst_reg dst,
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_reg_allocate.cpp b/src/mesa/drivers/dri/i965/brw_vec4_reg_allocate.cpp
index a2381bc30f2..ac3d401ac3f 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_reg_allocate.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_reg_allocate.cpp
@@ -346,16 +346,7 @@ vec4_visitor::spill_reg(int spill_reg_nr)
}
if (inst->dst.file == GRF && inst->dst.reg == spill_reg_nr) {
- dst_reg spill_reg = inst->dst;
- inst->dst.reg = virtual_grf_alloc(1);
-
- /* We don't want a swizzle when reading from the source; read the
- * whole register and use spill_reg's writemask to select which
- * channels to write.
- */
- src_reg temp = src_reg(inst->dst);
- temp.swizzle = BRW_SWIZZLE_XYZW;
- emit_scratch_write(inst, temp, spill_offset);
+ emit_scratch_write(inst, spill_offset);
}
}
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index 60295adbd87..310f3470dd7 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -2464,12 +2464,15 @@ vec4_visitor::emit_scratch_read(vec4_instruction *inst,
* @base_offset is measured in 32-byte units (the size of a register).
*/
void
-vec4_visitor::emit_scratch_write(vec4_instruction *inst,
- src_reg temp, int base_offset)
+vec4_visitor::emit_scratch_write(vec4_instruction *inst, int base_offset)
{
int reg_offset = base_offset + inst->dst.reg_offset;
src_reg index = get_scratch_offset(inst, inst->dst.reladdr, reg_offset);
+ /* Create a temporary register to store *inst's result in. */
+ src_reg temp = src_reg(this, glsl_type::vec4_type);
+ temp.type = inst->dst.type;
+
dst_reg dst = dst_reg(brw_writemask(brw_vec8_grf(0, 0),
inst->dst.writemask));
vec4_instruction *write = SCRATCH_WRITE(dst, temp, index);
@@ -2477,6 +2480,11 @@ vec4_visitor::emit_scratch_write(vec4_instruction *inst,
write->ir = inst->ir;
write->annotation = inst->annotation;
inst->insert_after(write);
+
+ inst->dst.file = temp.file;
+ inst->dst.reg = temp.reg;
+ inst->dst.reg_offset = temp.reg_offset;
+ inst->dst.reladdr = NULL;
}
/**
@@ -2531,14 +2539,7 @@ vec4_visitor::move_grf_array_access_to_scratch()
current_annotation = inst->annotation;
if (inst->dst.file == GRF && scratch_loc[inst->dst.reg] != -1) {
- src_reg temp = src_reg(this, glsl_type::vec4_type);
-
- emit_scratch_write(inst, temp, scratch_loc[inst->dst.reg]);
-
- inst->dst.file = temp.file;
- inst->dst.reg = temp.reg;
- inst->dst.reg_offset = temp.reg_offset;
- inst->dst.reladdr = NULL;
+ emit_scratch_write(inst, scratch_loc[inst->dst.reg]);
}
for (int i = 0 ; i < 3; i++) {