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-rw-r--r--src/mesa/state_tracker/st_glsl_to_tgsi.cpp65
1 files changed, 29 insertions, 36 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index e46a4a8323f..3e9ff805a4b 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -5155,21 +5155,37 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
const struct gl_shader_compiler_options *options =
&ctx->ShaderCompilerOptions[_mesa_shader_type_to_index(prog->_LinkedShaders[i]->Type)];
- do {
- unsigned what_to_lower = MOD_TO_FRACT | DIV_TO_MUL_RCP |
- EXP_TO_EXP2 | LOG_TO_LOG2;
- if (options->EmitNoPow)
- what_to_lower |= POW_TO_EXP2;
- if (!ctx->Const.NativeIntegers)
- what_to_lower |= INT_DIV_TO_MUL_RCP;
-
- progress = false;
+ /* If there are forms of indirect addressing that the driver
+ * cannot handle, perform the lowering pass.
+ */
+ if (options->EmitNoIndirectInput || options->EmitNoIndirectOutput ||
+ options->EmitNoIndirectTemp || options->EmitNoIndirectUniform) {
+ lower_variable_index_to_cond_assign(ir,
+ options->EmitNoIndirectInput,
+ options->EmitNoIndirectOutput,
+ options->EmitNoIndirectTemp,
+ options->EmitNoIndirectUniform);
+ }
- /* Lowering */
- do_mat_op_to_vec(ir);
- lower_instructions(ir, what_to_lower);
+ do_mat_op_to_vec(ir);
+ lower_instructions(ir,
+ MOD_TO_FRACT |
+ DIV_TO_MUL_RCP |
+ EXP_TO_EXP2 |
+ LOG_TO_LOG2 |
+ (options->EmitNoPow ? POW_TO_EXP2 : 0) |
+ (!ctx->Const.NativeIntegers ? INT_DIV_TO_MUL_RCP : 0));
+
+ lower_ubo_reference(prog->_LinkedShaders[i], ir);
+ do_vec_index_to_cond_assign(ir);
+ lower_quadop_vector(ir, false);
+ lower_noise(ir);
+ if (options->MaxIfDepth == 0) {
+ lower_discard(ir);
+ }
- lower_ubo_reference(prog->_LinkedShaders[i], ir);
+ do {
+ progress = false;
progress = do_lower_jumps(ir, true, true, options->EmitNoMainReturn, options->EmitNoCont, options->EmitNoLoops) || progress;
@@ -5177,31 +5193,8 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
options->MaxUnrollIterations)
|| progress;
- progress = lower_quadop_vector(ir, false) || progress;
-
- if (options->MaxIfDepth == 0)
- progress = lower_discard(ir) || progress;
-
progress = lower_if_to_cond_assign(ir, options->MaxIfDepth) || progress;
- if (options->EmitNoNoise)
- progress = lower_noise(ir) || progress;
-
- /* If there are forms of indirect addressing that the driver
- * cannot handle, perform the lowering pass.
- */
- if (options->EmitNoIndirectInput || options->EmitNoIndirectOutput
- || options->EmitNoIndirectTemp || options->EmitNoIndirectUniform)
- progress =
- lower_variable_index_to_cond_assign(ir,
- options->EmitNoIndirectInput,
- options->EmitNoIndirectOutput,
- options->EmitNoIndirectTemp,
- options->EmitNoIndirectUniform)
- || progress;
-
- progress = do_vec_index_to_cond_assign(ir) || progress;
-
} while (progress);
validate_ir_tree(ir);