When analyzing a loop where the loop condition is expressed in the
non-standard order (e.g. "4 > i" instead of "i < 4"), we were
reversing the condition incorrectly, leading to a loop bound that was
off by 1.
Fixes piglit tests {vs,fs}-loop-bounds-unrolled.shader_test.
---
src/glsl/loop_controls.cpp | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/src/glsl/loop_controls.cpp b/src/glsl/loop_controls.cpp
index 9acbadc..79c8204 100644
--- a/src/glsl/loop_controls.cpp
+++ b/src/glsl/loop_controls.cpp
@@ -222,10 +222,10 @@ loop_control_visitor::visit_leave(ir_loop *ir)
limit = cond->operands[0]->as_constant();
switch (cmp) {
- case ir_binop_less: cmp = ir_binop_gequal; break;
- case ir_binop_greater: cmp = ir_binop_lequal; break;
- case ir_binop_lequal: cmp = ir_binop_greater; break;
- case ir_binop_gequal: cmp = ir_binop_less; break;
+ case ir_binop_less: cmp = ir_binop_greater; break;
+ case ir_binop_greater: cmp = ir_binop_less; break;
+ case ir_binop_lequal: cmp = ir_binop_gequal; break;
+ case ir_binop_gequal: cmp = ir_binop_lequal; break;
default: assert(!"Should not get here.");
}
}
--
1.8.1
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