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-rw-r--r--src/gallium/drivers/radeonsi/si_shader.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 447293c334c..b15c60d29e8 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -5495,6 +5495,7 @@ static void create_function(struct si_shader_context *ctx)
LLVMTypeRef returns[16+32*4];
unsigned i, last_sgpr, num_params, num_return_sgprs;
unsigned num_returns = 0;
+ unsigned num_prolog_vgprs = 0;
v3i32 = LLVMVectorType(ctx->i32, 3);
@@ -5545,6 +5546,8 @@ static void create_function(struct si_shader_context *ctx)
for (i = 0; i < shader->selector->info.num_inputs; i++)
params[num_params++] = ctx->i32;
+
+ num_prolog_vgprs += shader->selector->info.num_inputs;
}
if (!ctx->no_epilog &&
@@ -5644,6 +5647,7 @@ static void create_function(struct si_shader_context *ctx)
params[SI_PARAM_POS_Z_FLOAT] = ctx->f32;
params[SI_PARAM_POS_W_FLOAT] = ctx->f32;
params[SI_PARAM_FRONT_FACE] = ctx->i32;
+ shader->info.face_vgpr_index = 20;
params[SI_PARAM_ANCILLARY] = ctx->i32;
params[SI_PARAM_SAMPLE_COVERAGE] = ctx->f32;
params[SI_PARAM_POS_FIXED_PT] = ctx->i32;
@@ -5658,6 +5662,8 @@ static void create_function(struct si_shader_context *ctx)
assert(num_params + num_color_elements <= ARRAY_SIZE(params));
for (i = 0; i < num_color_elements; i++)
params[num_params++] = ctx->f32;
+
+ num_prolog_vgprs += num_color_elements;
}
}
@@ -5740,12 +5746,11 @@ static void create_function(struct si_shader_context *ctx)
for (i = 0; i <= last_sgpr; ++i)
shader->info.num_input_sgprs += llvm_get_type_size(params[i]) / 4;
- /* Unused fragment shader inputs are eliminated by the compiler,
- * so we don't know yet how many there will be.
- */
- if (ctx->type != PIPE_SHADER_FRAGMENT)
- for (; i < num_params; ++i)
- shader->info.num_input_vgprs += llvm_get_type_size(params[i]) / 4;
+ for (; i < num_params; ++i)
+ shader->info.num_input_vgprs += llvm_get_type_size(params[i]) / 4;
+
+ assert(shader->info.num_input_vgprs >= num_prolog_vgprs);
+ shader->info.num_input_vgprs -= num_prolog_vgprs;
if (!ctx->screen->has_ds_bpermute &&
bld_base->info &&