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-rw-r--r--src/mesa/drivers/dri/i915/i915_context.c2
-rw-r--r--src/mesa/main/mtypes.h6
-rw-r--r--src/mesa/program/ir_to_mesa.cpp8
-rw-r--r--src/mesa/state_tracker/st_extensions.c2
-rw-r--r--src/mesa/state_tracker/st_glsl_to_tgsi.cpp6
5 files changed, 10 insertions, 14 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_context.c b/src/mesa/drivers/dri/i915/i915_context.c
index 11bee140ab6..e807281041a 100644
--- a/src/mesa/drivers/dri/i915/i915_context.c
+++ b/src/mesa/drivers/dri/i915/i915_context.c
@@ -189,7 +189,7 @@ i915CreateContext(int api,
struct gl_shader_compiler_options *const fs_options =
& ctx->ShaderCompilerOptions[MESA_SHADER_FRAGMENT];
- fs_options->EmitNoIfs = GL_TRUE;
+ fs_options->MaxIfDepth = 0;
fs_options->EmitNoNoise = GL_TRUE;
fs_options->EmitNoPow = GL_TRUE;
fs_options->EmitNoMainReturn = GL_TRUE;
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index f2eb889feb4..44ebf0a5351 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2266,11 +2266,6 @@ struct gl_shader_compiler_options
/** Driver-selectable options: */
GLboolean EmitCondCodes; /**< Use condition codes? */
GLboolean EmitNVTempInitialization; /**< 0-fill NV temp registers */
- /**
- * Attempts to flatten all ir_if (OPCODE_IF) for GPUs that can't
- * support control flow.
- */
- GLboolean EmitNoIfs;
GLboolean EmitNoLoops;
GLboolean EmitNoFunctions;
GLboolean EmitNoCont; /**< Emit CONT opcode? */
@@ -2288,6 +2283,7 @@ struct gl_shader_compiler_options
GLboolean EmitNoIndirectUniform; /**< No indirect addressing of constants */
/*@}*/
+ GLuint MaxIfDepth; /**< Maximum nested IF blocks */
GLuint MaxUnrollIterations;
struct gl_sl_pragmas DefaultPragmas; /**< Default #pragma settings */
diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp
index dd154db8b03..9813c4ae8a5 100644
--- a/src/mesa/program/ir_to_mesa.cpp
+++ b/src/mesa/program/ir_to_mesa.cpp
@@ -3119,7 +3119,7 @@ get_mesa_program(struct gl_context *ctx,
switch (mesa_inst->Opcode) {
case OPCODE_IF:
- if (options->EmitNoIfs) {
+ if (options->MaxIfDepth == 0) {
linker_warning(shader_program,
"Couldn't flatten if-statement. "
"This will likely result in software "
@@ -3241,10 +3241,10 @@ _mesa_ir_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
progress = lower_quadop_vector(ir, true) || progress;
- if (options->EmitNoIfs) {
+ if (options->MaxIfDepth == 0)
progress = lower_discard(ir) || progress;
- progress = lower_if_to_cond_assign(ir) || progress;
- }
+
+ progress = lower_if_to_cond_assign(ir, options->MaxIfDepth) || progress;
if (options->EmitNoNoise)
progress = lower_noise(ir) || progress;
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 8e900934054..322dbbfd51d 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -173,7 +173,7 @@ void st_init_limits(struct st_context *st)
options->EmitNoNoise = TRUE;
/* TODO: make these more fine-grained if anyone needs it */
- options->EmitNoIfs = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
+ options->MaxIfDepth = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
options->EmitNoLoops = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
options->EmitNoFunctions = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
options->EmitNoMainReturn = !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 98bea69b959..e2857edf390 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -4991,10 +4991,10 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
progress = lower_quadop_vector(ir, false) || progress;
- if (options->EmitNoIfs) {
+ if (options->MaxIfDepth == 0)
progress = lower_discard(ir) || progress;
- progress = lower_if_to_cond_assign(ir) || progress;
- }
+
+ progress = lower_if_to_cond_assign(ir, options->MaxIfDepth) || progress;
if (options->EmitNoNoise)
progress = lower_noise(ir) || progress;