From b0f3b5910ebd0737600ab7b1fdc135d74f2617f4 Mon Sep 17 00:00:00 2001
From: Zack Rusin <zack@tungstengraphics.com>
Date: Mon, 29 Oct 2007 10:59:24 -0400
Subject: Enable immediates in TGSI and work with them in LLVM code.

Enables immediates by default in the TGSI translation code
and adds code handling it in llvm tgsi translation.
---
 src/mesa/pipe/llvm/llvmtgsi.cpp | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

(limited to 'src/mesa/pipe/llvm/llvmtgsi.cpp')

diff --git a/src/mesa/pipe/llvm/llvmtgsi.cpp b/src/mesa/pipe/llvm/llvmtgsi.cpp
index 4611ac1766..ec38c695b9 100644
--- a/src/mesa/pipe/llvm/llvmtgsi.cpp
+++ b/src/mesa/pipe/llvm/llvmtgsi.cpp
@@ -164,9 +164,23 @@ translate_declaration(llvm::Module *module,
 
 
 static void
-translate_immediate(llvm::Module *module,
+translate_immediate(Storage *storage,
                     struct tgsi_full_immediate *imm)
 {
+   float vec[4];
+   int i;
+   for (i = 0; i < imm->Immediate.Size - 1; ++i) {
+      switch( imm->Immediate.DataType ) {
+      case TGSI_IMM_FLOAT32:
+         vec[i] = imm->u.ImmediateFloat32[i].Float;
+         break;
+      default:
+         assert( 0 );
+      }
+   }
+   printf("-------------- VEC = %f %f %f %f\n",
+          vec[0], vec[1], vec[2], vec[3]);
+   storage->addImmediate(vec);
 }
 
 static void
@@ -200,6 +214,8 @@ translate_instruction(llvm::Module *module,
          val = storage->tempElement(src->SrcRegister.Index);
       } else if (src->SrcRegister.File == TGSI_FILE_OUTPUT) {
          val = storage->outputElement(src->SrcRegister.Index, indIdx);
+      } else if (src->SrcRegister.File == TGSI_FILE_IMMEDIATE) {
+         val = storage->immediateElement(src->SrcRegister.Index);
       } else {
          fprintf(stderr, "ERROR: not supported llvm source %d\n", src->SrcRegister.File);
          return;
@@ -679,7 +695,7 @@ tgsi_to_llvm(struct gallivm_prog *prog, const struct tgsi_token *tokens)
          break;
 
       case TGSI_TOKEN_TYPE_IMMEDIATE:
-         translate_immediate(mod,
+         translate_immediate(&storage,
                              &parse.FullToken.FullImmediate);
          break;
 
-- 
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