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ac/nir: init full exec mask for merged shaders.

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Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2017-10-19 05:29:02 +01:00 • committed by Bas Nieuwenhuizen
parent 14978a1c3b
commit 1dda214d9c
3 changed files with 12 additions and 0 deletions
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8
src/amd/common/ac_llvm_build.c
View file

@ -1734,3 +1734,11 @@ void ac_optimize_vs_outputs(struct ac_llvm_context *ctx,
*num_param_exports = exports.num;
}
}
void ac_init_exec_full_mask(struct ac_llvm_context *ctx)
{
LLVMValueRef full_mask = LLVMConstInt(ctx->i64, ~0ull, 0);
ac_build_intrinsic(ctx,
"llvm.amdgcn.init.exec", ctx->voidt,
&full_mask, 1, AC_FUNC_ATTR_CONVERGENT);
}

1
src/amd/common/ac_llvm_build.h
View file

@ -281,6 +281,7 @@ void ac_optimize_vs_outputs(struct ac_llvm_context *ac,
uint8_t *vs_output_param_offset,
uint32_t num_outputs,
uint8_t *num_param_exports);
void ac_init_exec_full_mask(struct ac_llvm_context *ctx);
#ifdef __cplusplus
}
#endif

3
src/amd/common/ac_nir_to_llvm.c
View file

@ -6488,6 +6488,9 @@ LLVMModuleRef ac_translate_nir_to_llvm(LLVMTargetMachineRef tm,
ctx.abi.load_ssbo = radv_load_ssbo;
ctx.abi.load_sampler_desc = radv_get_sampler_desc;
if (shader_count >= 2)
ac_init_exec_full_mask(&ctx.ac);
if (ctx.ac.chip_class == GFX9 &&
shaders[shader_count - 1]->stage == MESA_SHADER_TESS_CTRL)
ac_nir_fixup_ls_hs_input_vgprs(&ctx);