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freedreno/a3xx: fix for unused inputs

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An unused input might not have a register assigned.  We don't want bogus
regid to result in impossibly high max_reg..

Signed-off-by: Rob Clark <robclark@freedesktop.org>
This commit is contained in:
Rob Clark
2014-02-25 08:02:28 -05:00
parent befbda56a2
commit 76924e3b51
2 changed files with 11 additions and 5 deletions
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src/gallium/drivers/freedreno/a3xx/fd3_program.c
+10 -4
View File
@@ -80,10 +80,16 @@ static void
fixup_vp_regfootprint(struct fd3_shader_variant *so)
{
unsigned i;
for (i = 0; i < so->inputs_count; i++)
so->info.max_reg = MAX2(so->info.max_reg, (so->inputs[i].regid + 3) >> 2);
for (i = 0; i < so->outputs_count; i++)
so->info.max_reg = MAX2(so->info.max_reg, (so->outputs[i].regid + 3) >> 2);
for (i = 0; i < so->inputs_count; i++) {
if (so->inputs[i].compmask) {
uint32_t regid = (so->inputs[i].regid + 3) >> 2;
so->info.max_reg = MAX2(so->info.max_reg, regid);
}
}
for (i = 0; i < so->outputs_count; i++) {
uint32_t regid = (so->outputs[i].regid + 3) >> 2;
so->info.max_reg = MAX2(so->info.max_reg, regid);
}
}
static struct fd3_shader_variant *
src/gallium/drivers/freedreno/a3xx/ir3_ra.c
+1 -1
View File
@@ -565,7 +565,7 @@ static void legalize(struct ir3_ra_ctx *ctx, struct ir3_block *block)
struct ir3_instruction *end =
ir3_instr_create(block, 0, OPC_END);
struct ir3_instruction *last_input = NULL;
regmask_t needs_ss_war;
regmask_t needs_ss_war; /* write after read */
regmask_t needs_ss;
regmask_t needs_sy;