mesa,glsl,gallium: remove GLSLSkipStrictMaxVaryingLimitCheck and dependencies

Not needed with do_dead_builtin_varyings.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

src/gallium/drivers/freedreno/freedreno_screen.c

@@ -185,7 +185,6 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 	case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 	case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 	case PIPE_CAP_SCALED_RESOLVE:
-	case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
 	case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 	case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 	case PIPE_CAP_VERTEX_COLOR_CLAMPED:

src/gallium/drivers/i915/i915_screen.c

@@ -204,7 +204,6 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
    case PIPE_CAP_CONDITIONAL_RENDER:
    case PIPE_CAP_TEXTURE_BARRIER:
-   case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:

src/gallium/drivers/ilo/ilo_screen.c

@@ -372,7 +372,6 @@ ilo_get_param(struct pipe_screen *screen, enum pipe_cap param)
          return is->dev.has_gen7_sol_reset;
       else
          return false; /* TODO */
-   case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
       return false;
    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:

src/gallium/drivers/llvmpipe/lp_screen.c

@@ -192,7 +192,6 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
       return 16*4;
    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
       return 1;
-   case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
       return 0;
    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:

src/gallium/drivers/nv30/nv30_screen.c

@@ -109,7 +109,6 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_MAX_TEXEL_OFFSET:
    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
-   case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
    case PIPE_CAP_TEXTURE_BARRIER:
    case PIPE_CAP_SEAMLESS_CUBE_MAP:

src/gallium/drivers/nv50/nv50_screen.c

@@ -165,7 +165,6 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
    case PIPE_CAP_START_INSTANCE:
       return 1;
-   case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
       return 0; /* state trackers will know better */
    case PIPE_CAP_USER_CONSTANT_BUFFERS:

src/gallium/drivers/nvc0/nvc0_screen.c

@@ -157,7 +157,6 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
    case PIPE_CAP_START_INSTANCE:
       return 1;
-   case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
       return 0; /* state trackers will know better */
    case PIPE_CAP_USER_CONSTANT_BUFFERS:

src/gallium/drivers/r300/r300_screen.c

@@ -101,7 +101,6 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
         case PIPE_CAP_CONDITIONAL_RENDER:
         case PIPE_CAP_TEXTURE_BARRIER:
-        case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
         case PIPE_CAP_USER_INDEX_BUFFERS:
         case PIPE_CAP_USER_CONSTANT_BUFFERS:

src/gallium/drivers/r600/r600_pipe.c

@@ -625,7 +625,6 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 	case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 	case PIPE_CAP_SCALED_RESOLVE:
-	case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
 	case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 	case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 	case PIPE_CAP_VERTEX_COLOR_CLAMPED:

src/gallium/drivers/radeonsi/radeonsi_pipe.c

@@ -385,7 +385,6 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 	case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 	case PIPE_CAP_SCALED_RESOLVE:
-	case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
 	case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 	case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 	case PIPE_CAP_VERTEX_COLOR_CLAMPED:

src/gallium/drivers/softpipe/sp_screen.c

@@ -161,7 +161,6 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
       return 1;
    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
       return 16;
-   case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:

src/gallium/drivers/svga/svga_screen.c

@@ -252,7 +252,6 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
-   case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS:
    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:

src/gallium/include/pipe/p_defines.h

@@ -482,7 +482,6 @@ enum pipe_cap {
    PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS = 55,
    PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS = 56,
    PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME = 57,
-   PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS = 58, /* temporary */
    PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS = 59, /* temporary */
    PIPE_CAP_VERTEX_COLOR_UNCLAMPED = 60,
    PIPE_CAP_VERTEX_COLOR_CLAMPED = 61,

src/glsl/link_varyings.cpp

@@ -1172,34 +1172,18 @@ check_against_varying_limit(struct gl_context *ctx,
 
    if (ctx->API == API_OPENGLES2 || prog->IsES) {
       if (varying_vectors > ctx->Const.MaxVarying) {
-         if (ctx->Const.GLSLSkipStrictMaxVaryingLimitCheck) {
+         linker_error(prog, "shader uses too many varying vectors "
-            linker_warning(prog, "shader uses too many varying vectors "
+                      "(%u > %u)\n",
-                           "(%u > %u), but the driver will try to optimize "
+                      varying_vectors, ctx->Const.MaxVarying);
-                           "them out; this is non-portable out-of-spec "
+         return false;
-                           "behavior\n",
-                           varying_vectors, ctx->Const.MaxVarying);
-         } else {
-            linker_error(prog, "shader uses too many varying vectors "
-                         "(%u > %u)\n",
-                         varying_vectors, ctx->Const.MaxVarying);
-            return false;
-         }
       }
    } else {
       const unsigned float_components = varying_vectors * 4;
       if (float_components > ctx->Const.MaxVarying * 4) {
-         if (ctx->Const.GLSLSkipStrictMaxVaryingLimitCheck) {
+         linker_error(prog, "shader uses too many varying components "
-            linker_warning(prog, "shader uses too many varying components "
+                      "(%u > %u)\n",
-                           "(%u > %u), but the driver will try to optimize "
+                      float_components, ctx->Const.MaxVarying * 4);
-                           "them out; this is non-portable out-of-spec "
+         return false;
-                           "behavior\n",
-                           float_components, ctx->Const.MaxVarying * 4);
-         } else {
-            linker_error(prog, "shader uses too many varying components "
-                         "(%u > %u)\n",
-                         float_components, ctx->Const.MaxVarying * 4);
-            return false;
-         }
       }
    }
 

src/mesa/main/mtypes.h

@@ -2925,12 +2925,11 @@ struct gl_constants
    GLboolean StripTextureBorder;
 
    /**
-    * For drivers which can do a better job at eliminating unused varyings
+    * For drivers which can do a better job at eliminating unused uniforms
-    * and uniforms than the GLSL compiler.
+    * than the GLSL compiler.
     *
     * XXX Remove these as soon as a better solution is available.
     */
-   GLboolean GLSLSkipStrictMaxVaryingLimitCheck;
    GLboolean GLSLSkipStrictMaxUniformLimitCheck;
 
    /**

src/mesa/state_tracker/st_extensions.c

@@ -276,9 +276,6 @@ void st_init_limits(struct st_context *st)
    c->GLSLSkipStrictMaxUniformLimitCheck =
       screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS);
 
-   c->GLSLSkipStrictMaxVaryingLimitCheck =
-      screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS);
-
    if (can_ubo) {
       st->ctx->Extensions.ARB_uniform_buffer_object = GL_TRUE;
       c->UniformBufferOffsetAlignment =