Mesa (main): ir3: Make shift operand 64-bit.

[GitLab Mirror]

Module: Mesa
Branch: main
Commit: 1d6f6f9102211931cdce50820e85b03f533f6515
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=1d6f6f9102211931cdce50820e85b03f533f6515

Author: Vinson Lee <vlee at freedesktop.org>
Date:   Sun Dec 19 15:41:51 2021 -0800

ir3: Make shift operand 64-bit.

Fix defect reported by Coverity Scan.

Unintentional integer overflow (OVERFLOW_BEFORE_WIDEN)
overflow_before_widen: Potentially overflowing expression 2 << W
with type int (32 bits, signed) is evaluated using 32-bit
arithmetic, and then used in a context that expects an expression
of type uint64_t (64 bits, unsigned).

Signed-off-by: Vinson Lee <vlee at freedesktop.org>
Acked-by: Rob Clark <robclark at freedesktop.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14258>

---

 src/freedreno/isa/ir3-cat0.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/freedreno/isa/ir3-cat0.xml b/src/freedreno/isa/ir3-cat0.xml
index 5c0c0caa205..6c5609b64d8 100644
--- a/src/freedreno/isa/ir3-cat0.xml
+++ b/src/freedreno/isa/ir3-cat0.xml
@@ -187,7 +187,7 @@ SOFTWARE.
 	</display>
 	<derived name="CLUSTER_SIZE" type="uint">
 		<expr>
-			2 << {W}
+			2ULL << {W}
 		</expr>
 	</derived>
 	<pattern low="32" high="36">xxxxx</pattern> <!-- INDEX -->