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authorMatt Turner <[email protected]>2015-04-13 11:29:14 -0700
committerMatt Turner <[email protected]>2015-04-14 12:16:03 -0700
commit3ca17e75e4fe129511a4dcad47e139485beef880 (patch)
tree2fcbda51d6dacaee2ef6a5f2a996cd977b4a7e92
parent07c571a39fa12c3db1c638302de7aed67844609b (diff)
i965/fs: Correct mistake in determining whether a MUL is negated.
a * b is equivalent to -a * -b, and the previous code was failing at that. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89961 Reviewed-by: Anuj Phogat <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs_cse.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_cse.cpp b/src/mesa/drivers/dri/i965/brw_fs_cse.cpp
index f2c40986683..c1d06161cbf 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_cse.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_cse.cpp
@@ -145,7 +145,7 @@ operands_match(const fs_inst *a, const fs_inst *b, bool *negate)
xs[1].fixed_hw_reg.dw1.f = xs1_imm;
ys[1].fixed_hw_reg.dw1.f = ys1_imm;
- *negate = (xs0_negate + xs1_negate) != (ys0_negate + ys1_negate);
+ *negate = (xs0_negate != xs1_negate) != (ys0_negate != ys1_negate);
return ret;
} else if (!a->is_commutative()) {
bool match = true;