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| author | Maciej W. Rozycki <macro@linux-mips.org> | 2020-12-05 18:26:26 +0000 |
|---|---|---|
| committer | Maciej W. Rozycki <macro@linux-mips.org> | 2020-12-05 18:26:26 +0000 |
| commit | e93fbce844dd055da73e730ecc639ff797ba4518 (patch) | |
| tree | 6eada44c9d31058d5e5b4aa337ea80b64d1be9b1 /gcc/errors.h | |
| parent | 2c45dc7928697c047c1ef5de710e9b0fd108de57 (diff) | |
| download | gcc-e93fbce844dd055da73e730ecc639ff797ba4518.zip gcc-e93fbce844dd055da73e730ecc639ff797ba4518.tar.gz gcc-e93fbce844dd055da73e730ecc639ff797ba4518.tar.bz2 | |
VAX: Add the `movmemhi' instruction
The MOVC3 machine instruction has `memmove' semantics[1]:
"The operation of the instruction is such that overlap of the source and
destination strings does not affect the result."
so use it to provide the `movmemhi' instruction as well.
References:
[1] DEC STD 032-0 "VAX Architecture Standard", Digital Equipment
Corporation, A-DS-EL-00032-00-0 Rev J, December 15, 1989, Section
3.10 "Character-String Instructions", p. 3-162
gcc/
* config/vax/vax.md (cpymemhi1): Rename insn to...
(movmemhi1): ... this.
(cpymemhi): Update accordingly. Remove constraints.
(movmemhi): New expander.
gcc/testsuite/
* gcc.target/vax/movmem.c: New test.
Diffstat (limited to 'gcc/errors.h')
0 files changed, 0 insertions, 0 deletions