Mesa (staging/22.0): aux/draw: fix llvm tcs lane vec generation
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Thu Feb 10 21:09:38 UTC 2022
Module: Mesa
Branch: staging/22.0
Commit: d8afb09eecd2e8e6f29a5b7a75888b8fa8508432
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=d8afb09eecd2e8e6f29a5b7a75888b8fa8508432
Author: Mike Blumenkrantz <michael.blumenkrantz at gmail.com>
Date: Wed Feb 9 09:07:41 2022 -0500
aux/draw: fix llvm tcs lane vec generation
the idx param for LLVMBuildInsertElement is zero-indexed based on the
value of 'vector_length' (always 4), and the vector length is (obviously)
sized to 'vector_length', so this should be the member of the vec that is being
inserted, not the invocation index
cc: mesa-stable
fixes (zink, but only on my one machine):
KHR-GL46.tessellation_shader.single.max_patch_vertices
KHR-GL46.tessellation_shader.tessellation_shader_tc_barriers.barrier_guarded_read_write_calls
dEQP-GLES31.functional.tessellation.shader_input_output.barrier
dEQP-GLES31.functional.tessellation.shader_input_output.patch_vertices_5_in_10_out
dEQP-GLES31.functional.tessellation_geometry_interaction.feedback.tessellation_output_isolines_geometry_output_points
dEQP-GLES31.functional.tessellation_geometry_interaction.feedback.tessellation_output_isolines_point_mode_geometry_output_triangles
dEQP-GLES31.functional.tessellation_geometry_interaction.feedback.tessellation_output_quads_geometry_output_points
dEQP-GLES31.functional.tessellation_geometry_interaction.feedback.tessellation_output_quads_point_mode_geometry_output_lines
dEQP-GLES31.functional.tessellation_geometry_interaction.feedback.tessellation_output_triangles_geometry_output_points
dEQP-GLES31.functional.tessellation_geometry_interaction.feedback.tessellation_output_triangles_point_mode_geometry_output_lines
Reviewed-by: Dave Airlie <airlied at redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14949>
(cherry picked from commit 68c1b50e48e32ec8ff4815666b7124d4cb4171ab)
---
.pick_status.json | 2 +-
src/gallium/auxiliary/draw/draw_llvm.c | 5 +++--
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/.pick_status.json b/.pick_status.json
index aaa0585f534..ae8d6fc60db 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -355,7 +355,7 @@
"description": "aux/draw: fix llvm tcs lane vec generation",
"nominated": true,
"nomination_type": 0,
- "resolution": 0,
+ "resolution": 1,
"main_sha": null,
"because_sha": null
},
diff --git a/src/gallium/auxiliary/draw/draw_llvm.c b/src/gallium/auxiliary/draw/draw_llvm.c
index e21d36cefdc..483bf62b44c 100644
--- a/src/gallium/auxiliary/draw/draw_llvm.c
+++ b/src/gallium/auxiliary/draw/draw_llvm.c
@@ -3515,8 +3515,9 @@ draw_tcs_llvm_generate(struct draw_llvm *llvm,
LLVMValueRef counter = LLVMGetParam(variant_coro, 6);
LLVMValueRef invocvec = LLVMGetUndef(LLVMVectorType(int32_type, vector_length));
for (i = 0; i < vector_length; i++) {
- LLVMValueRef idx = LLVMBuildAdd(builder, LLVMBuildMul(builder, counter, step, ""), lp_build_const_int32(gallivm, i), "");
- invocvec = LLVMBuildInsertElement(builder, invocvec, idx, idx, "");
+ LLVMValueRef loop_iter = lp_build_const_int32(gallivm, i);
+ LLVMValueRef idx = LLVMBuildAdd(builder, LLVMBuildMul(builder, counter, step, ""), loop_iter, "");
+ invocvec = LLVMBuildInsertElement(builder, invocvec, idx, loop_iter, "");
}
system_values.invocation_id = invocvec;
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