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VAX: Also provide QImode and HImode `ctz' and `ffs' operations
authorMaciej W. Rozycki <macro@linux-mips.org>
Sat, 5 Dec 2020 18:26:25 +0000 (18:26 +0000)
committerMaciej W. Rozycki <macro@linux-mips.org>
Sat, 5 Dec 2020 18:26:25 +0000 (18:26 +0000)
commit273ffa3a6fef82738dd86522374fae69ab0e2651
tree34272370d708f9e9e9f66af1f22087f281935e15tree | snapshot
parenta17ab4b6add6a7b7cedbef39af442ca99f7cb3f8commit | diff
VAX: Also provide QImode and HImode `ctz' and `ffs' operations

The FFS machine instruction provides for arbitrary input bit-field widths
so take advantage of this and convert `ffssi2' and `ctzsi2' to templates
for all the three of QI, HI, SI machine modes.

Test cases will be added separately.

gcc/
* config/vax/builtins.md (width): New mode attribute.
(ffssi2): Rework expander into...
(ffs<mode>2): ... this.
(ctzsi2): Rework insn into...
(ctz<mode>2): ... this.
gcc/config/vax/builtins.md diff | blob | history
Domain: System / Toolchain;