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authorBrian Paul <[email protected]>2009-06-17 13:51:35 -0600
committerBrian Paul <[email protected]>2009-06-26 13:16:32 -0600
commit4bc74a07561eeaa97dbde55c384998ea6aa5968c (patch)
tree7cd258f0ea6e3cd8a1f6f82ff89d0ac8a1eaf196
parent625b0fe2684de462d1e7ea7fc8fcdfc8e3283949 (diff)
glsl: don't unroll loops containing continue/break
Just search the AST in _slang_can_unroll_for_loop().
-rw-r--r--src/mesa/shader/slang/slang_codegen.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c
index f19da41b0d6..f6274780ad6 100644
--- a/src/mesa/shader/slang/slang_codegen.c
+++ b/src/mesa/shader/slang/slang_codegen.c
@@ -2488,6 +2488,12 @@ _slang_can_unroll_for_loop(slang_assemble_ctx * A, const slang_operation *oper)
assert(oper->type == SLANG_OPER_FOR);
assert(oper->num_children == 4);
+ if (_slang_find_node_type((slang_operation *) oper, SLANG_OPER_CONTINUE) ||
+ _slang_find_node_type((slang_operation *) oper, SLANG_OPER_BREAK)) {
+ /* dont't unroll loops containing continue/break statements */
+ return GL_FALSE;
+ }
+
/* children[0] must be either "int i=constant" or "i=constant" */
if (oper->children[0].type == SLANG_OPER_BLOCK_NO_NEW_SCOPE) {
slang_variable *var;