[Bug middle-end/113033] GCC 14 (20231203 snapshot) ICE when building LSX vector rotate code on LoongArch

[xry111 at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113033

Xi Ruoyao <xry111 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|target                      |middle-end
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #5 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
It looks like we should do:

diff --git a/gcc/expmed.cc b/gcc/expmed.cc
index b294eabb08d..b87e09a8a65 100644
--- a/gcc/expmed.cc
+++ b/gcc/expmed.cc
@@ -2628,9 +2628,7 @@ expand_shift_1 (enum tree_code code, machine_mode mode,
rtx shifted,
                  (mode, GET_MODE_BITSIZE (scalar_mode) - INTVAL (op1));
              else
                {
-                 other_amount
-                   = simplify_gen_unary (NEG, GET_MODE (op1),
-                                         op1, GET_MODE (op1));
+                 other_amount = negate_rtx (GET_MODE (op1), op1);
                  HOST_WIDE_INT mask = GET_MODE_PRECISION (scalar_mode) - 1;
                  other_amount
                    = simplify_gen_binary (AND, GET_MODE (op1), other_amount,

??