[Bug target/98853] [11 Regression] wrong use of bfxil at -O1

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98853

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I admit I know next to nothing about AArch64, but the
https://gcc.gnu.org/legacy-ml/gcc-patches/2018-07/msg01895.html
patch certainly doesn't emit what it claims to, and from a brief look at the
assembler guide it appears that emitting what the patch claims to shall fix it.

So I think this should be:
--- gcc/config/aarch64/aarch64.md.jj    2021-01-04 10:25:46.435147744 +0100
+++ gcc/config/aarch64/aarch64.md       2021-01-27 15:13:13.993275204 +0100
@@ -5724,10 +5724,10 @@ (define_insn "*aarch64_bfxilsi_uxtw"
     {
       case 0:
        operands[3] = GEN_INT (ctz_hwi (~INTVAL (operands[3])));
-       return "bfxil\\t%0, %1, 0, %3";
+       return "bfxil\\t%w0, %w1, 0, %3";
       case 1:
        operands[3] = GEN_INT (ctz_hwi (~INTVAL (operands[4])));
-       return "bfxil\\t%0, %2, 0, %3";
+       return "bfxil\\t%w0, %w2, 0, %3";
       default:
        gcc_unreachable ();
     }