Mesa (master): tgsi/scan: add uses_doubles to tgsi scanner
Dave Airlie
airlied at kemper.freedesktop.org
Wed Sep 2 06:07:20 UTC 2015
Module: Mesa
Branch: master
Commit: ee67fd70c22c6389fd90886ef3ddf5bf6601b3a0
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=ee67fd70c22c6389fd90886ef3ddf5bf6601b3a0
Author: Dave Airlie <airlied at redhat.com>
Date: Fri Feb 20 10:40:46 2015 +1000
tgsi/scan: add uses_doubles to tgsi scanner
This allows drivers to work out if a shader contains any
double opcodes easily.
Signed-off-by: Dave Airlie <airlied at redhat.com>
---
src/gallium/auxiliary/tgsi/tgsi_scan.c | 4 ++++
src/gallium/auxiliary/tgsi/tgsi_scan.h | 2 +-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c b/src/gallium/auxiliary/tgsi/tgsi_scan.c
index 7523baf..9810b54 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.c
@@ -100,6 +100,10 @@ tgsi_scan_shader(const struct tgsi_token *tokens,
assert(fullinst->Instruction.Opcode < TGSI_OPCODE_LAST);
info->opcode_count[fullinst->Instruction.Opcode]++;
+ if (fullinst->Instruction.Opcode >= TGSI_OPCODE_F2D &&
+ fullinst->Instruction.Opcode <= TGSI_OPCODE_DSSG)
+ info->uses_doubles = true;
+
for (i = 0; i < fullinst->Instruction.NumSrcRegs; i++) {
const struct tgsi_full_src_register *src =
&fullinst->Src[i];
diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.h b/src/gallium/auxiliary/tgsi/tgsi_scan.h
index b81bdd7..c5900bc 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.h
@@ -95,7 +95,7 @@ struct tgsi_shader_info
boolean writes_viewport_index;
boolean writes_layer;
boolean is_msaa_sampler[PIPE_MAX_SAMPLERS];
-
+ boolean uses_doubles; /**< uses any of the double instructions */
unsigned clipdist_writemask;
unsigned culldist_writemask;
unsigned num_written_culldistance;
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