4 files changed, 65 insertions, 8 deletions

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_logic.c b/src/gallium/auxiliary/gallivm/lp_bld_logic.c
index d23de4f0ef..41ac81b744 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_logic.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_logic.c
@@ -419,3 +419,15 @@ lp_build_select_aos(struct lp_build_context *bld,
 #endif
    }
 }
+
+LLVMValueRef
+lp_build_alloca(struct lp_build_context *bld)
+{
+   const struct lp_type type = bld->type;
+
+   if (type.length > 1) { /*vector*/
+      return LLVMBuildAlloca(bld->builder, lp_build_vec_type(type), "");
+   } else { /*scalar*/
+      return LLVMBuildAlloca(bld->builder, lp_build_elem_type(type), "");
+   }
+}
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_logic.h b/src/gallium/auxiliary/gallivm/lp_bld_logic.h
index 40d64eb2c1..a399ebf39e 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_logic.h
+++ b/src/gallium/auxiliary/gallivm/lp_bld_logic.h
@@ -76,5 +76,7 @@ lp_build_select_aos(struct lp_build_context *bld,
                     LLVMValueRef b,
                     const boolean cond[4]);
 
+LLVMValueRef
+lp_build_alloca(struct lp_build_context *bld);
 
 #endif /* !LP_BLD_LOGIC_H */
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
index 85e3b1bdd4..a52c6c5028 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
@@ -185,7 +185,7 @@ emit_fetch(
          break;
 
       case TGSI_FILE_TEMPORARY:
-         res = bld->temps[reg->Register.Index][swizzle];
+         res = LLVMBuildLoad(bld->base.builder, bld->temps[reg->Register.Index][swizzle], "");
          if(!res)
             return bld->base.undef;
          break;
@@ -287,11 +287,13 @@ emit_store(
 
    switch( reg->Register.File ) {
    case TGSI_FILE_OUTPUT:
-      bld->outputs[reg->Register.Index][chan_index] = value;
+      LLVMBuildStore(bld->base.builder, value,
+                     bld->outputs[reg->Register.Index][chan_index]);
       break;
 
    case TGSI_FILE_TEMPORARY:
-      bld->temps[reg->Register.Index][chan_index] = value;
+      LLVMBuildStore(bld->base.builder, value,
+                     bld->temps[reg->Register.Index][chan_index]);
       break;
 
    case TGSI_FILE_ADDRESS:
@@ -438,6 +440,42 @@ indirect_temp_reference(const struct tgsi_full_instruction *inst)
    return FALSE;
 }
 
+static int
+emit_declaration(
+   struct lp_build_tgsi_soa_context *bld,
+   const struct tgsi_full_declaration *decl)
+{
+   unsigned first = decl->Range.First;
+   unsigned last = decl->Range.Last;
+   unsigned idx, i;
+
+   for (idx = first; idx <= last; ++idx) {
+      boolean ok;
+
+      switch (decl->Declaration.File) {
+      case TGSI_FILE_TEMPORARY:
+         for (i = 0; i < NUM_CHANNELS; i++)
+            bld->temps[idx][i] = lp_build_alloca(&bld->base);
+         ok = TRUE;
+         break;
+
+      case TGSI_FILE_OUTPUT:
+         for (i = 0; i < NUM_CHANNELS; i++)
+            bld->outputs[idx][i] = lp_build_alloca(&bld->base);
+         ok = TRUE;
+         break;
+
+      default:
+         /* don't need to declare other vars */
+         ok = TRUE;
+      }
+
+      if (!ok)
+         return FALSE;
+   }
+
+   return TRUE;
+}
 
 static int
 emit_instruction(
@@ -1429,6 +1467,10 @@ lp_build_tgsi_soa(LLVMBuilderRef builder,
       switch( parse.FullToken.Token.Type ) {
       case TGSI_TOKEN_TYPE_DECLARATION:
          /* Inputs already interpolated */
+         {
+            if (!emit_declaration( &bld, &parse.FullToken.FullDeclaration ))
+               _debug_printf("warning: failed to define LLVM variable\n");
+         }
          break;
 
       case TGSI_TOKEN_TYPE_INSTRUCTION:
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c
index 320e2b72e4..2001a95661 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_fs.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c
@@ -468,20 +468,21 @@ generate_fs(struct llvmpipe_context *lp,
    for (attrib = 0; attrib < shader->info.num_outputs; ++attrib) {
       for(chan = 0; chan < NUM_CHANNELS; ++chan) {
          if(outputs[attrib][chan]) {
-            lp_build_name(outputs[attrib][chan], "output%u.%u.%c", i, attrib, "xyzw"[chan]);
+            LLVMValueRef out = LLVMBuildLoad(builder, outputs[attrib][chan], "");
+            lp_build_name(out, "output%u.%u.%c", i, attrib, "xyzw"[chan]);
 
             switch (shader->info.output_semantic_name[attrib]) {
             case TGSI_SEMANTIC_COLOR:
                {
                   unsigned cbuf = shader->info.output_semantic_index[attrib];
 
-                  lp_build_name(outputs[attrib][chan], "color%u.%u.%c", i, attrib, "rgba"[chan]);
+                  lp_build_name(out, "color%u.%u.%c", i, attrib, "rgba"[chan]);
 
                   /* Alpha test */
                   /* XXX: should the alpha reference value be passed separately? */
 		  /* XXX: should only test the final assignment to alpha */
                   if(cbuf == 0 && chan == 3) {
-                     LLVMValueRef alpha = outputs[attrib][chan];
+                     LLVMValueRef alpha = out;
                      LLVMValueRef alpha_ref_value;
                      alpha_ref_value = lp_jit_context_alpha_ref_value(builder, context_ptr);
                      alpha_ref_value = lp_build_broadcast(builder, vec_type, alpha_ref_value);
@@ -489,13 +490,13 @@ generate_fs(struct llvmpipe_context *lp,
                                          &mask, alpha, alpha_ref_value);
                   }
 
-		  color[cbuf][chan] = outputs[attrib][chan];
+		  color[cbuf][chan] = out;
                   break;
                }
 
             case TGSI_SEMANTIC_POSITION:
                if(chan == 2)
-                  z = outputs[attrib][chan];
+                  z = out;
                break;
             }
          }