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authorEric Anholt <eric@anholt.net>2010-10-20 15:21:53 -0700
committerEric Anholt <eric@anholt.net>2010-10-21 15:20:01 -0700
commit7a3f113e79f983222ecc95c33655a8c9354fcfad (patch)
tree44c5c0fd93dde3018fa6d8f9241ea5e0636484bf
parent5ac6c4ecfe77bf7e02ae61981b2c8b1fe73027cd (diff)
i965: Fix gl_FrontFacing emit on pre-gen6.
It's amazing this code worked. Basically, we would get lucky in register allocation and the tests using frontfacing would happen to allocate gl_FrontFacing storage and the instructions generating gl_FrontFacing but pointing at another register to the same hardware register. Noticed during register spilling debug, when suddenly they didn't get allocatd the same storage.
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs.cpp1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 5c5e383e8b..bc39d1c29a 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -503,7 +503,6 @@ fs_visitor::emit_frontfacing_interpolation(ir_variable *ir)
*reg,
fs_reg(1)));
} else {
- fs_reg *reg = new(this->mem_ctx) fs_reg(this, ir->type);
struct brw_reg r1_6ud = retype(brw_vec1_grf(1, 6), BRW_REGISTER_TYPE_UD);
/* bit 31 is "primitive is back face", so checking < (1 << 31) gives
* us front face