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authorMarek Olšák <[email protected]>2016-10-28 23:08:50 +0200
committerMarek Olšák <[email protected]>2016-11-15 20:23:40 +0100
commit74e39de9324d2d2333cda6adca50ae2a3fc36de2 (patch)
treeac3a0f374798aae867746689ce42c023907253f0 /src/gallium/drivers
parent537b897f51690aa11089bec0d82e89ca712b1469 (diff)
radeonsi: set IF_THRESHOLD to 3
Piglit regressions (radeonsi or LLVM bugs, they pass on softpipe): - glsl-1.10/execution/variable-indexing/vs-output-array-vec3-index-wr - glsl-1.10/execution/variable-indexing/vs-output-array-vec4-index-wr - glsl-110/execution/variable-indexing/vs-temp-array-mat2-index-col-row-wr - glsl-110/execution/variable-indexing/vs-temp-array-mat2-index-row-wr Totals: SGPRS: 1132185 -> 1168801 (3.23 %) VGPRS: 907856 -> 906204 (-0.18 %) Spilled SGPRs: 2011 -> 2425 (20.59 %) Spilled VGPRs: 368 -> 96 (-73.91 %) Scratch VGPRs: 1344 -> 1060 (-21.13 %) dwords per thread Code Size: 35916164 -> 35705372 (-0.59 %) bytes LDS: 767 -> 767 (0.00 %) blocks Max Waves: 194010 -> 194921 (0.47 %) Wait states: 0 -> 0 (0.00 %) Before: VGPR SPILLING APPS Shaders SpillVGPR ScratchVGPR alien_isolation 2938 38 40 bioshock-infinite 1769 245 732 dirt-showdown 548 85 72 f1-2015 776 0 320 ue4_lightroom_inter.. 74 0 180 After: VGPR SPILLING APPS Shaders SpillVGPR ScratchVGPR alien_isolation 2938 38 40 bioshock-infinite 1769 0 480 dirt-showdown 548 58 40 f1-2015 776 0 320 ue4_lightroom_inter.. 74 0 180 Bioshock and DiRT benefit. If I set IF_THRESHOLD=4, tesseract starts spilling VGPRs Reviewed-by: Nicolai Hähnle <[email protected]>
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/radeonsi/si_pipe.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
index 146128dbc3c..6be676d786a 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -632,6 +632,8 @@ static int si_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enu
return 32;
case PIPE_SHADER_CAP_PREFERRED_IR:
return PIPE_SHADER_IR_TGSI;
+ case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
+ return 3;
/* Supported boolean features. */
case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
@@ -659,7 +661,6 @@ static int si_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enu
case PIPE_SHADER_CAP_SUPPORTED_IRS:
case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
- case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
return 0;
}
return 0;