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| author | Segher Boessenkool <segher@kernel.crashing.org> | 2019-12-20 00:15:19 +0000 |
|---|---|---|
| committer | Segher Boessenkool <segher@kernel.crashing.org> | 2020-02-06 18:03:47 +0000 |
| commit | 72b2f3317b4484b25e9a6cc3fd12e7f8c893fb56 (patch) | |
| tree | 0d9e80e5e9ecc09de1c484921529d5ab2f9916c0 /gcc/tree-inline.c | |
| parent | 201c2f785f4d4c9ad9a8df859e6d078ed86ecc79 (diff) | |
| download | gcc-72b2f3317b4484b25e9a6cc3fd12e7f8c893fb56.zip gcc-72b2f3317b4484b25e9a6cc3fd12e7f8c893fb56.tar.gz gcc-72b2f3317b4484b25e9a6cc3fd12e7f8c893fb56.tar.bz2 | |
rs6000: Use rldimi for 64-bit constants with high=low (PR93012)
We currently use an (up to) five instruction sequence to generate such
constants. After this change we just generate a 32-bit constant and do
a rotate-and-mask-insert instruction, making the sequence only up to
three instructions.
* config/rs6000/rs6000.c (rs6000_emit_set_long_const): Handle the case
where the low and the high 32 bits are equal to each other specially,
with an rldimi instruction.
gcc/testsuite/
* gcc.target/powerpc/pr93012.c: New.
Diffstat (limited to 'gcc/tree-inline.c')
0 files changed, 0 insertions, 0 deletions