i965/fs: Plumb a mem_ctx all the way through the FS compile.

'c' is going away, but we still need a memory context that lives
for the duration of the compile.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>

8 files changed, 23 insertions, 15 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_blorp_blit_eu.cpp b/src/mesa/drivers/dri/i965/brw_blorp_blit_eu.cpp
index 38969d8..71e0ad3 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp_blit_eu.cpp
+++ b/src/mesa/drivers/dri/i965/brw_blorp_blit_eu.cpp
@@ -27,7 +27,7 @@
 
 brw_blorp_eu_emitter::brw_blorp_eu_emitter(struct brw_context *brw)
    : mem_ctx(ralloc_context(NULL)), c(rzalloc(mem_ctx, struct brw_wm_compile)),
-     generator(brw, c, NULL, NULL, false)
+     generator(brw, mem_ctx, c, NULL, NULL, false)
 {
 }
 
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 6fc92b4..579e492 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -3103,7 +3103,9 @@ fs_visitor::run()
 }
 
 const unsigned *
-brw_wm_fs_emit(struct brw_context *brw, struct brw_wm_compile *c,
+brw_wm_fs_emit(struct brw_context *brw,
+               void *mem_ctx,
+               struct brw_wm_compile *c,
                struct gl_fragment_program *fp,
                struct gl_shader_program *prog,
                unsigned *final_assembly_size)
@@ -3126,7 +3128,7 @@ brw_wm_fs_emit(struct brw_context *brw, struct brw_wm_compile *c,
 
    /* Now the main event: Visit the shader IR and generate our FS IR for it.
     */
-   fs_visitor v(brw, c, prog, fp, 8);
+   fs_visitor v(brw, mem_ctx, c, prog, fp, 8);
    if (!v.run()) {
       if (prog) {
          prog->LinkStatus = false;
@@ -3140,7 +3142,7 @@ brw_wm_fs_emit(struct brw_context *brw, struct brw_wm_compile *c,
    }
 
    exec_list *simd16_instructions = NULL;
-   fs_visitor v2(brw, c, prog, fp, 16);
+   fs_visitor v2(brw, mem_ctx, c, prog, fp, 16);
    if (brw->gen >= 5 && likely(!(INTEL_DEBUG & DEBUG_NO16))) {
       if (!v.simd16_unsupported) {
          /* Try a SIMD16 compile */
@@ -3159,11 +3161,11 @@ brw_wm_fs_emit(struct brw_context *brw, struct brw_wm_compile *c,
 
    const unsigned *assembly = NULL;
    if (brw->gen >= 8) {
-      gen8_fs_generator g(brw, c, prog, fp, v.do_dual_src);
+      gen8_fs_generator g(brw, mem_ctx, c, prog, fp, v.do_dual_src);
       assembly = g.generate_assembly(&v.instructions, simd16_instructions,
                                      final_assembly_size);
    } else {
-      fs_generator g(brw, c, prog, fp, v.do_dual_src);
+      fs_generator g(brw, mem_ctx, c, prog, fp, v.do_dual_src);
       assembly = g.generate_assembly(&v.instructions, simd16_instructions,
                                      final_assembly_size);
    }
diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h
index 6611c38..d42b7b8 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -250,6 +250,7 @@ class fs_visitor : public backend_visitor
 public:
 
    fs_visitor(struct brw_context *brw,
+              void *mem_ctx,
               struct brw_wm_compile *c,
               struct gl_shader_program *shader_prog,
               struct gl_fragment_program *fp,
@@ -596,6 +597,7 @@ class fs_generator
 {
 public:
    fs_generator(struct brw_context *brw,
+                void *mem_ctx,
                 struct brw_wm_compile *c,
                 struct gl_shader_program *prog,
                 struct gl_fragment_program *fp,
@@ -722,6 +724,7 @@ class gen8_fs_generator : public gen8_generator
 {
 public:
    gen8_fs_generator(struct brw_context *brw,
+                     void *mem_ctx,
                      struct brw_wm_compile *c,
                      struct gl_shader_program *prog,
                      struct gl_fragment_program *fp,
diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
index 99207b3..a337aef 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
@@ -37,18 +37,17 @@ extern "C" {
 #include "brw_cfg.h"
 
 fs_generator::fs_generator(struct brw_context *brw,
+                           void *mem_ctx,
                            struct brw_wm_compile *c,
                            struct gl_shader_program *prog,
                            struct gl_fragment_program *fp,
                            bool dual_source_output)
 
-   : brw(brw), c(c), key(&c->key), prog(prog), fp(fp), dual_source_output(dual_source_output)
+   : brw(brw), c(c), key(&c->key), prog(prog), fp(fp), dual_source_output(dual_source_output), mem_ctx(mem_ctx)
 {
    ctx = &brw->ctx;
    prog_data = &c->prog_data;
 
-   mem_ctx = c;
-
    p = rzalloc(mem_ctx, struct brw_compile);
    brw_init_compile(brw, p, mem_ctx);
 }
diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
index 46527d9..4be5928 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
@@ -2954,6 +2954,7 @@ fs_visitor::resolve_bool_comparison(ir_rvalue *rvalue, fs_reg *reg)
 }
 
 fs_visitor::fs_visitor(struct brw_context *brw,
+                       void *mem_ctx,
                        struct brw_wm_compile *c,
                        struct gl_shader_program *shader_prog,
                        struct gl_fragment_program *fp,
@@ -2966,7 +2967,7 @@ fs_visitor::fs_visitor(struct brw_context *brw,
    this->c = c;
    this->prog_data = &c->prog_data;
    this->fp = fp;
-   this->mem_ctx = c;
+   this->mem_ctx = mem_ctx;
    this->failed = false;
    this->simd16_unsupported = false;
    this->no16_msg = NULL;
diff --git a/src/mesa/drivers/dri/i965/brw_wm.c b/src/mesa/drivers/dri/i965/brw_wm.c
index 059d848..780c78f 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.c
+++ b/src/mesa/drivers/dri/i965/brw_wm.c
@@ -146,6 +146,7 @@ bool do_wm_prog(struct brw_context *brw,
 		struct brw_wm_prog_key *key)
 {
    struct gl_context *ctx = &brw->ctx;
+   void *mem_ctx = ralloc_context(NULL);
    struct brw_wm_compile *c;
    const GLuint *program;
    struct gl_shader *fs = NULL;
@@ -154,7 +155,7 @@ bool do_wm_prog(struct brw_context *brw,
    if (prog)
       fs = prog->_LinkedShaders[MESA_SHADER_FRAGMENT];
 
-   c = rzalloc(NULL, struct brw_wm_compile);
+   c = rzalloc(mem_ctx, struct brw_wm_compile);
 
    /* Allocate the references to the uniforms that will end up in the
     * prog_data associated with the compiled program, and which will be freed
@@ -180,9 +181,9 @@ bool do_wm_prog(struct brw_context *brw,
                                            c->key.persample_shading,
                                            &fp->program);
 
-   program = brw_wm_fs_emit(brw, c, &fp->program, prog, &program_size);
+   program = brw_wm_fs_emit(brw, mem_ctx, c, &fp->program, prog, &program_size);
    if (program == NULL) {
-      ralloc_free(c);
+      ralloc_free(mem_ctx);
       return false;
    }
 
@@ -200,7 +201,7 @@ bool do_wm_prog(struct brw_context *brw,
 		    &c->prog_data, sizeof(c->prog_data),
 		    &brw->wm.base.prog_offset, &brw->wm.prog_data);
 
-   ralloc_free(c);
+   ralloc_free(mem_ctx);
 
    return true;
 }
diff --git a/src/mesa/drivers/dri/i965/brw_wm.h b/src/mesa/drivers/dri/i965/brw_wm.h
index 5721d6f..dd57a97 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.h
+++ b/src/mesa/drivers/dri/i965/brw_wm.h
@@ -91,6 +91,7 @@ struct brw_wm_compile {
  * Returns the final assembly and the program's size.
  */
 const unsigned *brw_wm_fs_emit(struct brw_context *brw,
+                               void *mem_ctx,
                                struct brw_wm_compile *c,
                                struct gl_fragment_program *fp,
                                struct gl_shader_program *prog,
diff --git a/src/mesa/drivers/dri/i965/gen8_fs_generator.cpp b/src/mesa/drivers/dri/i965/gen8_fs_generator.cpp
index 63481b3..9a09888 100644
--- a/src/mesa/drivers/dri/i965/gen8_fs_generator.cpp
+++ b/src/mesa/drivers/dri/i965/gen8_fs_generator.cpp
@@ -36,11 +36,12 @@ extern "C" {
 #include "glsl/ir_print_visitor.h"
 
 gen8_fs_generator::gen8_fs_generator(struct brw_context *brw,
+                                     void *mem_ctx,
                                      struct brw_wm_compile *c,
                                      struct gl_shader_program *shader_prog,
                                      struct gl_fragment_program *fp,
                                      bool dual_source_output)
-   : gen8_generator(brw, shader_prog, fp ? &fp->Base : NULL, c),
+   : gen8_generator(brw, shader_prog, fp ? &fp->Base : NULL, mem_ctx),
      c(c), key(&c->key),
      fp(fp), dual_source_output(dual_source_output)
 {