Mesa (master): intel/compiler: Don't have sepearate, per-Gen nir_options

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Module: Mesa
Branch: master
Commit: fd1fa9afc770a8da0b99f755da762a469ca6a0f3
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=fd1fa9afc770a8da0b99f755da762a469ca6a0f3

Author: Ian Romanick <ian.d.romanick at intel.com>
Date:   Fri Apr 19 13:11:34 2019 -0700

intel/compiler: Don't have sepearate, per-Gen nir_options

Instead, just have separate scalar vs. vector nir_options and do
per-Gen "fix ups".

Suggested-by: Jason Ekstrand <jason at jlekstrand.net>
Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>
Reviewed-by: Matt Turner <mattst88 at gmail.com>

---

 src/intel/compiler/brw_compiler.c | 42 ++++++++++-----------------------------
 1 file changed, 11 insertions(+), 31 deletions(-)

diff --git a/src/intel/compiler/brw_compiler.c b/src/intel/compiler/brw_compiler.c
index 5d88a66f1fa..f1acf838887 100644
--- a/src/intel/compiler/brw_compiler.c
+++ b/src/intel/compiler/brw_compiler.c
@@ -69,12 +69,6 @@ static const struct nir_shader_compiler_options scalar_nir_options = {
    COMMON_SCALAR_OPTIONS,
 };
 
-static const struct nir_shader_compiler_options scalar_nir_options_gen11 = {
-   COMMON_OPTIONS,
-   COMMON_SCALAR_OPTIONS,
-   .lower_flrp32 = true,
-};
-
 static const struct nir_shader_compiler_options vector_nir_options = {
    COMMON_OPTIONS,
 
@@ -84,27 +78,6 @@ static const struct nir_shader_compiler_options vector_nir_options = {
     */
    .fdot_replicates = true,
 
-   /* Prior to Gen6, there are no three source operations for SIMD4x2. */
-   .lower_flrp32 = true,
-
-   .lower_pack_snorm_2x16 = true,
-   .lower_pack_unorm_2x16 = true,
-   .lower_unpack_snorm_2x16 = true,
-   .lower_unpack_unorm_2x16 = true,
-   .lower_extract_byte = true,
-   .lower_extract_word = true,
-   .max_unroll_iterations = 32,
-};
-
-static const struct nir_shader_compiler_options vector_nir_options_gen6 = {
-   COMMON_OPTIONS,
-
-   /* In the vec4 backend, our dpN instruction replicates its result to all the
-    * components of a vec4.  We would like NIR to give us replicated fdot
-    * instructions because it can optimize better for us.
-    */
-   .fdot_replicates = true,
-
    .lower_pack_snorm_2x16 = true,
    .lower_pack_unorm_2x16 = true,
    .lower_unpack_snorm_2x16 = true,
@@ -197,11 +170,18 @@ brw_compiler_create(void *mem_ctx, const struct gen_device_info *devinfo)
       struct nir_shader_compiler_options *nir_options =
          rzalloc(compiler, struct nir_shader_compiler_options);
       if (is_scalar) {
-         *nir_options =
-            devinfo->gen < 11 ? scalar_nir_options : scalar_nir_options_gen11;
+         *nir_options = scalar_nir_options;
+
+         if (devinfo->gen >= 11) {
+            nir_options->lower_flrp32 = true;
+         }
       } else {
-         *nir_options =
-            devinfo->gen < 6 ? vector_nir_options : vector_nir_options_gen6;
+         *nir_options = vector_nir_options;
+
+         if (devinfo->gen < 6) {
+            /* Prior to Gen6, there are no three source operations. */
+            nir_options->lower_flrp32 = true;
+         }
       }
       nir_options->lower_int64_options = int64_options;
       nir_options->lower_doubles_options = fp64_options;