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-rw-r--r--src/amd/common/ac_nir_to_llvm.c5
-rw-r--r--src/amd/common/ac_shader_abi.h1
-rw-r--r--src/gallium/drivers/radeonsi/si_shader.c16
3 files changed, 15 insertions, 7 deletions
diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index 8953a3d422..bc3cb2d526 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -128,7 +128,6 @@ struct nir_to_llvm_context {
LLVMValueRef sample_pos_offset;
LLVMValueRef persp_sample, persp_center, persp_centroid;
LLVMValueRef linear_sample, linear_center, linear_centroid;
- LLVMValueRef front_face;
LLVMValueRef ancillary;
LLVMValueRef sample_coverage;
LLVMValueRef frag_pos[4];
@@ -830,7 +829,7 @@ static void create_function(struct nir_to_llvm_context *ctx)
add_vgpr_argument(&args, ctx->f32, &ctx->frag_pos[1]); /* pos y float */
add_vgpr_argument(&args, ctx->f32, &ctx->frag_pos[2]); /* pos z float */
add_vgpr_argument(&args, ctx->f32, &ctx->frag_pos[3]); /* pos w float */
- add_vgpr_argument(&args, ctx->i32, &ctx->front_face); /* front face */
+ add_vgpr_argument(&args, ctx->i32, &ctx->abi.front_face); /* front face */
add_vgpr_argument(&args, ctx->i32, &ctx->ancillary); /* ancillary */
add_vgpr_argument(&args, ctx->i32, &ctx->sample_coverage); /* sample coverage */
add_vgpr_argument(&args, ctx->i32, NULL); /* fixed pt */
@@ -3997,7 +3996,7 @@ static void visit_intrinsic(struct ac_nir_context *ctx,
result = ctx->nctx->sample_coverage;
break;
case nir_intrinsic_load_front_face:
- result = ctx->nctx->front_face;
+ result = ctx->abi->front_face;
break;
case nir_intrinsic_load_instance_id:
result = ctx->abi->instance_id;
diff --git a/src/amd/common/ac_shader_abi.h b/src/amd/common/ac_shader_abi.h
index efbd7de460..1c8d0e8b3a 100644
--- a/src/amd/common/ac_shader_abi.h
+++ b/src/amd/common/ac_shader_abi.h
@@ -44,6 +44,7 @@ struct ac_shader_abi {
LLVMValueRef draw_id;
LLVMValueRef vertex_id;
LLVMValueRef instance_id;
+ LLVMValueRef front_face;
/* For VS and PS: pre-loaded shader inputs.
*
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index eb3c415007..96fce0eef4 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -150,12 +150,19 @@ static unsigned add_arg(struct si_function_info *fninfo,
return add_arg_assign(fninfo, regfile, type, NULL);
}
+static void add_arg_assign_checked(struct si_function_info *fninfo,
+ enum si_arg_regfile regfile, LLVMTypeRef type,
+ LLVMValueRef *assign, unsigned idx)
+{
+ MAYBE_UNUSED unsigned actual = add_arg_assign(fninfo, regfile, type, assign);
+ assert(actual == idx);
+}
+
static void add_arg_checked(struct si_function_info *fninfo,
enum si_arg_regfile regfile, LLVMTypeRef type,
unsigned idx)
{
- MAYBE_UNUSED unsigned actual = add_arg(fninfo, regfile, type);
- assert(actual == idx);
+ add_arg_assign_checked(fninfo, regfile, type, NULL, idx);
}
/**
@@ -1561,7 +1568,7 @@ static void declare_system_value(struct si_shader_context *ctx,
}
case TGSI_SEMANTIC_FACE:
- value = LLVMGetParam(ctx->main_fn, SI_PARAM_FRONT_FACE);
+ value = ctx->abi.front_face;
break;
case TGSI_SEMANTIC_SAMPLEID:
@@ -4509,7 +4516,8 @@ static void create_function(struct si_shader_context *ctx)
add_arg_checked(&fninfo, ARG_VGPR, ctx->f32, SI_PARAM_POS_Y_FLOAT);
add_arg_checked(&fninfo, ARG_VGPR, ctx->f32, SI_PARAM_POS_Z_FLOAT);
add_arg_checked(&fninfo, ARG_VGPR, ctx->f32, SI_PARAM_POS_W_FLOAT);
- add_arg_checked(&fninfo, ARG_VGPR, ctx->i32, SI_PARAM_FRONT_FACE);
+ add_arg_assign_checked(&fninfo, ARG_VGPR, ctx->i32,
+ &ctx->abi.front_face, SI_PARAM_FRONT_FACE);
shader->info.face_vgpr_index = 20;
add_arg_checked(&fninfo, ARG_VGPR, ctx->i32, SI_PARAM_ANCILLARY);
add_arg_checked(&fninfo, ARG_VGPR, ctx->f32, SI_PARAM_SAMPLE_COVERAGE);