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authorBrian Paul <brianp@vmware.com>2009-06-17 13:51:35 -0600
committerBrian Paul <brianp@vmware.com>2009-06-17 13:51:35 -0600
commit82eb74d76e7cf66d004e81abe6345803b21685c6 (patch)
tree61354203c255335d3e6bda8564accbb9a9738096
parent8f1e1bc024f6a7c8bda41b18612c7e82563a85e5 (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 f19da41b0d..f6274780ad 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;