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| author | marha <marha@users.sourceforge.net> | 2012-04-16 09:17:34 +0200 |
|---|---|---|
| committer | marha <marha@users.sourceforge.net> | 2012-04-16 09:17:34 +0200 |
| commit | d6d3999ccb2cb72d55820770260172eccbbb68d7 (patch) | |
| tree | 568ce82dd1a8e2edbbe8cd4cb5ab5b14157f34f6 /mesalib/src/glsl/opt_if_simplification.cpp | |
| parent | fffd436e9c2ec6f5aa501ee57d0e4ade7293ee60 (diff) | |
| download | vcxsrv-d6d3999ccb2cb72d55820770260172eccbbb68d7.tar.gz vcxsrv-d6d3999ccb2cb72d55820770260172eccbbb68d7.tar.bz2 vcxsrv-d6d3999ccb2cb72d55820770260172eccbbb68d7.zip | |
libX11 xserver pixman mesa git update 16 Apr 2012
Diffstat (limited to 'mesalib/src/glsl/opt_if_simplification.cpp')
| -rw-r--r-- | mesalib/src/glsl/opt_if_simplification.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mesalib/src/glsl/opt_if_simplification.cpp b/mesalib/src/glsl/opt_if_simplification.cpp index 940dd08d5..7e88208f7 100644 --- a/mesalib/src/glsl/opt_if_simplification.cpp +++ b/mesalib/src/glsl/opt_if_simplification.cpp @@ -66,6 +66,14 @@ do_if_simplification(exec_list *instructions) ir_visitor_status ir_if_simplification_visitor::visit_leave(ir_if *ir) { + /* If the if statement has nothing on either side, remove it. */ + if (ir->then_instructions.is_empty() && + ir->else_instructions.is_empty()) { + ir->remove(); + this->made_progress = true; + return visit_continue; + } + /* FINISHME: Ideally there would be a way to note that the condition results * FINISHME: in a constant before processing both of the other subtrees. * FINISHME: This can probably be done with some flags, but it would take |