Mesa (master): radeonsi: implement TGSI_SEMANTIC_HELPER_INVOCATION
Nicolai Hähnle
nh at kemper.freedesktop.org
Fri Apr 22 04:14:13 UTC 2016
Module: Mesa
Branch: master
Commit: 39e9cf6cb18cc4e8ee828006107de42482668b81
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=39e9cf6cb18cc4e8ee828006107de42482668b81
Author: Nicolai Hähnle <nicolai.haehnle at amd.com>
Date: Sat Apr 16 13:00:12 2016 -0500
radeonsi: implement TGSI_SEMANTIC_HELPER_INVOCATION
Depends on LLVM support introduced in r267102.
Reviewed-by: Marek Olšák <marek.olsak at amd.com>
---
docs/GL3.txt | 2 +-
src/gallium/drivers/radeonsi/si_shader.c | 11 +++++++++++
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/docs/GL3.txt b/docs/GL3.txt
index 6214f8d..be13b53 100644
--- a/docs/GL3.txt
+++ b/docs/GL3.txt
@@ -248,7 +248,7 @@ GLES3.1, GLSL ES 3.1
glMemoryBarrierByRegion DONE
glGetTexLevelParameter[fi]v - needs updates DONE
glGetBooleani_v - restrict to GLES enums
- gl_HelperInvocation support DONE (i965, nvc0, r600)
+ gl_HelperInvocation support DONE (i965, nvc0, r600, radeonsi)
GLES3.2, GLSL ES 3.2
GL_EXT_color_buffer_float DONE (all drivers)
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index e277c2f..c6efbc1 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -1333,6 +1333,17 @@ static void declare_system_value(
value = LLVMGetParam(radeon_bld->main_fn, SI_PARAM_THREAD_ID);
break;
+#if HAVE_LLVM >= 0x0309
+ case TGSI_SEMANTIC_HELPER_INVOCATION:
+ value = lp_build_intrinsic(gallivm->builder,
+ "llvm.amdgcn.ps.live",
+ ctx->i1, NULL, 0,
+ LLVMReadNoneAttribute | LLVMNoUnwindAttribute);
+ value = LLVMBuildNot(gallivm->builder, value, "");
+ value = LLVMBuildSExt(gallivm->builder, value, ctx->i32, "");
+ break;
+#endif
+
default:
assert(!"unknown system value");
return;
More information about the mesa-commit
mailing list