diff options
| -rw-r--r-- | src/glsl/nir/nir.h | 1 | ||||
| -rw-r--r-- | src/glsl/nir/nir_opt_algebraic.py | 1 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_shader.cpp | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/src/glsl/nir/nir.h b/src/glsl/nir/nir.h index 087b4537c0..09caf34c83 100644 --- a/src/glsl/nir/nir.h +++ b/src/glsl/nir/nir.h @@ -1435,6 +1435,7 @@ typedef struct nir_function { exec_list_get_head(&(func)->overload_list), node) typedef struct nir_shader_compiler_options { + bool lower_fdiv; bool lower_ffma; bool lower_flrp; bool lower_fpow; diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py index 6aa8b1f6ca..fb36acbbec 100644 --- a/src/glsl/nir/nir_opt_algebraic.py +++ b/src/glsl/nir/nir_opt_algebraic.py @@ -179,6 +179,7 @@ optimizations = [ (('fmul', ('fexp2', a), ('fexp2', b)), ('fexp2', ('fadd', a, b))), # Division and reciprocal (('fdiv', 1.0, a), ('frcp', a)), + (('fdiv', a, b), ('fmul', a, ('frcp', b)), 'options->lower_fdiv'), (('frcp', ('frcp', a)), a), (('frcp', ('fsqrt', a)), ('frsq', a)), (('fsqrt', a), ('frcp', ('frsq', a)), 'options->lower_fsqrt'), diff --git a/src/mesa/drivers/dri/i965/brw_shader.cpp b/src/mesa/drivers/dri/i965/brw_shader.cpp index 7a236cd988..3dc57e4b9b 100644 --- a/src/mesa/drivers/dri/i965/brw_shader.cpp +++ b/src/mesa/drivers/dri/i965/brw_shader.cpp @@ -94,6 +94,7 @@ brw_compiler_create(void *mem_ctx, const struct brw_device_info *devinfo) nir_shader_compiler_options *nir_options = rzalloc(compiler, nir_shader_compiler_options); nir_options->native_integers = true; + nir_options->lower_fdiv = true; /* In order to help allow for better CSE at the NIR level we tell NIR * to split all ffma instructions during opt_algebraic and we then * re-combine them as a later step. |