6 files changed, 29 insertions, 19 deletions
diff --git a/src/mesa/shader/nvfragparse.c b/src/mesa/shader/nvfragparse.c
index 0fd55524ab..b739a6aa07 100644
--- a/src/mesa/shader/nvfragparse.c
+++ b/src/mesa/shader/nvfragparse.c
@@ -217,6 +217,12 @@ MatchInstruction(const GLubyte *token)
    const struct instruction_pattern *inst;
    struct instruction_pattern result;
 
+   result.name = NULL;
+   result.opcode = MAX_OPCODE; /* i.e. invalid instruction */
+   result.inputs = 0;
+   result.outputs = 0;
+   result.suffixes = 0;
+
    for (inst = Instructions; inst->name; inst++) {
       if (_mesa_strncmp((const char *) token, inst->name, 3) == 0) {
          /* matched! */
@@ -247,7 +253,7 @@ MatchInstruction(const GLubyte *token)
          return result;
       }
    }
-   result.opcode = MAX_OPCODE; /* i.e. invalid instruction */
+
    return result;
 }
 
diff --git a/src/mesa/shader/prog_parameter.c b/src/mesa/shader/prog_parameter.c
index 2f029b02e5..f22492e029 100644
--- a/src/mesa/shader/prog_parameter.c
+++ b/src/mesa/shader/prog_parameter.c
@@ -500,7 +500,7 @@ GLfloat *
 _mesa_lookup_parameter_value(const struct gl_program_parameter_list *paramList,
                              GLsizei nameLen, const char *name)
 {
-   GLuint i = _mesa_lookup_parameter_index(paramList, nameLen, name);
+   GLint i = _mesa_lookup_parameter_index(paramList, nameLen, name);
    if (i < 0)
       return NULL;
    else
diff --git a/src/mesa/shader/program.c b/src/mesa/shader/program.c
index 532adf4d36..6b8d94e661 100644
--- a/src/mesa/shader/program.c
+++ b/src/mesa/shader/program.c
@@ -806,9 +806,17 @@ _mesa_find_free_register(const struct gl_program *prog, GLuint regFile)
       const struct prog_instruction *inst = prog->Instructions + i;
       const GLuint n = _mesa_num_inst_src_regs(inst->Opcode);
 
-      for (k = 0; k < n; k++) {
-         if (inst->SrcReg[k].File == regFile) {
-            used[inst->SrcReg[k].Index] = GL_TRUE;
+      /* check dst reg first */
+      if (inst->DstReg.File == regFile) {
+         used[inst->DstReg.Index] = GL_TRUE;
+      }
+      else {
+         /* check src regs otherwise */
+         for (k = 0; k < n; k++) {
+            if (inst->SrcReg[k].File == regFile) {
+               used[inst->SrcReg[k].Index] = GL_TRUE;
+               break;
+            }
          }
       }
    }
diff --git a/src/mesa/shader/programopt.c b/src/mesa/shader/programopt.c
index a0daac1b80..9514545709 100644
--- a/src/mesa/shader/programopt.c
+++ b/src/mesa/shader/programopt.c
@@ -528,15 +528,11 @@ _mesa_remove_output_reads(struct gl_program *prog, gl_register_file type)
    /* look for instructions which write to the varying vars identified above */
    for (i = 0; i < prog->NumInstructions; i++) {
       struct prog_instruction *inst = prog->Instructions + i;
-      const GLuint numSrc = _mesa_num_inst_src_regs(inst->Opcode);
-      GLuint j;
-      for (j = 0; j < numSrc; j++) {
-         if (inst->DstReg.File == type &&
-             outputMap[inst->DstReg.Index] >= 0) {
-            /* change inst to write to the temp reg, instead of the varying */
-            inst->DstReg.File = PROGRAM_TEMPORARY;
-            inst->DstReg.Index = outputMap[inst->DstReg.Index];
-         }
+      if (inst->DstReg.File == type &&
+          outputMap[inst->DstReg.Index] >= 0) {
+         /* change inst to write to the temp reg, instead of the varying */
+         inst->DstReg.File = PROGRAM_TEMPORARY;
+         inst->DstReg.Index = outputMap[inst->DstReg.Index];
       }
    }
 
diff --git a/src/mesa/shader/slang/slang_compile_operation.h b/src/mesa/shader/slang/slang_compile_operation.h
index 58f1edeed8..1f15c19896 100644
--- a/src/mesa/shader/slang/slang_compile_operation.h
+++ b/src/mesa/shader/slang/slang_compile_operation.h
@@ -127,7 +127,6 @@ typedef struct slang_operation_
     * indicate such.  num_children indicates number of elements.
     */
    GLboolean array_constructor;
-   double x;
 } slang_operation;
 
 
diff --git a/src/mesa/shader/slang/slang_simplify.c b/src/mesa/shader/slang/slang_simplify.c
index b8a21f642c..13b9ca3c87 100644
--- a/src/mesa/shader/slang/slang_simplify.c
+++ b/src/mesa/shader/slang/slang_simplify.c
@@ -84,10 +84,11 @@ _slang_lookup_constant(const char *name)
    for (i = 0; info[i].Name; i++) {
       if (strcmp(info[i].Name, name) == 0) {
          /* found */
-         GLint value = -1;
-         _mesa_GetIntegerv(info[i].Token, &value);
-         ASSERT(value >= 0);  /* sanity check that glGetFloatv worked */
-         return value;
+         GLint values[16];
+         values[0] = -1;
+         _mesa_GetIntegerv(info[i].Token, values);
+         ASSERT(values[0] >= 0);  /* sanity check that glGetFloatv worked */
+         return values[0];
       }
    }
    return -1;