By flattening the if statements we cut 288 instructions from the
fragment shader (806 -> 518, or 35%), and we remove all register
spilling on i965.
Reduces runtime of "varying-packing-simple int separate" by
-81.4453% +/- 0.255875% (n=483).
Also consistently print 3 digits in the varying's names, to make
reading/sorting simpler.
---
tests/spec/glsl-1.10/execution/varying-packing/simple.c | 17 +++++------------
1 file changed, 5 insertions(+), 12 deletions(-)
diff --git a/tests/spec/glsl-1.10/execution/varying-packing/simple.c
b/tests/spec/glsl-1.10/execution/varying-packing/simple.c
index 618f325..e9935c7 100644
--- a/tests/spec/glsl-1.10/execution/varying-packing/simple.c
+++ b/tests/spec/glsl-1.10/execution/varying-packing/simple.c
@@ -258,12 +258,12 @@ get_shader(bool is_vs, unsigned glsl_version, int
num_varyings,
if (varyings[i].type->base != BASE_TYPE_FLOAT)
opt_flat_keyword = "flat ";
if (varyings[i].array_elems != 0) {
- text += sprintf(text, "%s%s %s var%u[%u];\n",
+ text += sprintf(text, "%s%s %s var%03u[%u];\n",
opt_flat_keyword, varying_keyword,
varyings[i].type->name, i,
varyings[i].array_elems);
} else {
- text += sprintf(text, "%s%s %s var%u;\n",
+ text += sprintf(text, "%s%s %s var%03u;\n",
opt_flat_keyword, varying_keyword,
varyings[i].type->name, i);
}
@@ -292,8 +292,8 @@ get_shader(bool is_vs, unsigned glsl_version, int
num_varyings,
for (l = 0; l < varyings[i].type->num_rows;
++l) {
text += sprintf(text, " ");
if (!is_vs)
- text += sprintf(text, "if (");
- text += sprintf(text, "var%u", i);
+ text += sprintf(text, "failed =
failed || ");
+ text += sprintf(text, "var%03u", i);
if (varyings[i].array_elems)
text += sprintf(text, "[%u]",
j);
if (varyings[i].type->num_cols > 1)
@@ -304,16 +304,9 @@ get_shader(bool is_vs, unsigned glsl_version, int
num_varyings,
text += sprintf(text, " = ");
else
text += sprintf(text, " != ");
- text += sprintf(text, "%s(i + %u)",
+ text += sprintf(text, "%s(i + %u);\n",
base_type_name,
offset++);
- if (is_vs) {
- text += sprintf(text, ";\n");
- } else {
- text += sprintf(text,
- ")\n"
- " failed =
true;\n");
- }
}
}
}
--
2.0.5
_______________________________________________
Piglit mailing list
Piglit@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/piglit
