Mesa (master): vc4: Print a reg pressure estimate in our reg allocation failure dump.
Eric Anholt
anholt at kemper.freedesktop.org
Wed Nov 9 23:35:38 UTC 2016
Module: Mesa
Branch: master
Commit: 695a2e2ffa5faa7b303ca819dcb2e2922dfce5ab
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=695a2e2ffa5faa7b303ca819dcb2e2922dfce5ab
Author: Eric Anholt <eric at anholt.net>
Date: Mon Nov 7 10:16:45 2016 -0800
vc4: Print a reg pressure estimate in our reg allocation failure dump.
---
src/gallium/drivers/vc4/vc4_qir.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/gallium/drivers/vc4/vc4_qir.c b/src/gallium/drivers/vc4/vc4_qir.c
index 446af66..a34eccf 100644
--- a/src/gallium/drivers/vc4/vc4_qir.c
+++ b/src/gallium/drivers/vc4/vc4_qir.c
@@ -381,6 +381,7 @@ void
qir_dump(struct vc4_compile *c)
{
int ip = 0;
+ int pressure = 0;
qir_for_each_block(block, c) {
fprintf(stderr, "BLOCK %d:\n", block->index);
@@ -388,6 +389,8 @@ qir_dump(struct vc4_compile *c)
if (c->temp_start) {
bool first = true;
+ fprintf(stderr, "%3d ", pressure);
+
for (int i = 0; i < c->num_temps; i++) {
if (c->temp_start[i] != ip)
continue;
@@ -398,6 +401,7 @@ qir_dump(struct vc4_compile *c)
fprintf(stderr, ", ");
}
fprintf(stderr, "S%4d", i);
+ pressure++;
}
if (first)
@@ -419,6 +423,7 @@ qir_dump(struct vc4_compile *c)
fprintf(stderr, ", ");
}
fprintf(stderr, "E%4d", i);
+ pressure--;
}
if (first)
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