mesa: Branch 'glsl-compiler-1' - 2 commits

[Brian Paul]

 progs/tests/Makefile                  |    1 +
 src/mesa/shader/slang/slang_codegen.c |   15 +++++++++------
 2 files changed, 10 insertions(+), 6 deletions(-)

New commits:
diff-tree 3f7ef618b6ea9d80aaef416ca9ddf6994bcbec8e (from 15aa7aaa9327f528d1edc47d76fcc92e32bf001e)
Author: Brian <brian at nostromo.localnet.net>
Date:   Sun Mar 11 17:30:13 2007 -0600

    added drawbuffers.c

diff --git a/progs/tests/Makefile b/progs/tests/Makefile
index 3a22285..482ae2c 100644
--- a/progs/tests/Makefile
+++ b/progs/tests/Makefile
@@ -33,6 +33,7 @@ SOURCES = \
 	crossbar.c \
 	cva.c \
 	dinoshade.c \
+	drawbuffers.c \
 	floattex.c \
 	fbotest1.c \
 	fbotest2.c \
diff-tree 15aa7aaa9327f528d1edc47d76fcc92e32bf001e (from ccb80d7ec4e4415c5443031ec26447117e20e4de)
Author: Brian <brian at nostromo.localnet.net>
Date:   Sun Mar 11 17:29:54 2007 -0600

    add NULL ptr check

diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c
index 88a4b2d..7b2ca3a 100644
--- a/src/mesa/shader/slang/slang_codegen.c
+++ b/src/mesa/shader/slang/slang_codegen.c
@@ -1985,12 +1985,15 @@ _slang_gen_assignment(slang_assemble_ctx
    else {
       slang_ir_node *n, *lhs, *rhs;
       lhs = _slang_gen_operation(A, &oper->children[0]);
-      if (lhs->Store->File != PROGRAM_OUTPUT &&
-          lhs->Store->File != PROGRAM_TEMPORARY &&
-          lhs->Store->File != PROGRAM_VARYING &&
-          lhs->Store->File != PROGRAM_UNDEFINED) {
-         slang_info_log_error(A->log, "Assignment to read-only variable");
-         return NULL;
+
+      if (lhs) {
+         if (lhs->Store->File != PROGRAM_OUTPUT &&
+             lhs->Store->File != PROGRAM_TEMPORARY &&
+             lhs->Store->File != PROGRAM_VARYING &&
+             lhs->Store->File != PROGRAM_UNDEFINED) {
+            slang_info_log_error(A->log, "Assignment to read-only variable");
+            return NULL;
+         }
       }
 
       rhs = _slang_gen_operation(A, &oper->children[1]);