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| author | Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp> | 2025-07-07 23:40:17 +0900 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2025-07-08 10:28:48 -0700 |
| commit | 57da36bed1004d2b78057568176b76cb0a50d149 (patch) | |
| tree | f46adc04bc942cdff32caf2849c22280447c0afd /gcc/rust/backend/rust-compile-struct-field-expr.h | |
| parent | 1f3bf202355f16d6ec0a9b37cb6a71be5f76b77f (diff) | |
| download | gcc-57da36bed1004d2b78057568176b76cb0a50d149.zip gcc-57da36bed1004d2b78057568176b76cb0a50d149.tar.gz gcc-57da36bed1004d2b78057568176b76cb0a50d149.tar.bz2 | |
xtensa: Fix B[GE/LT]UI instructions with immediate values of 32768 or 65536 not being emitted
This is because in canonicalize_comparison() in gcc/expmed.cc, the COMPARE
rtx_cost() for the immediate values in the title does not change between
the old and new versions. This patch fixes that.
(note: Currently, this patch only works if some constant propagation
optimizations are enabled (-O2 or higher) or if bare large constant
assignments are possible (-mconst16 or -mauto-litpools). In the future
I hope to make it work at -O1...)
gcc/ChangeLog:
* config/xtensa/xtensa.cc (xtensa_b4const_or_zero):
Remove.
(xtensa_b4const): Add a case where the value is 0, and rename
to xtensa_b4const_or_zero.
(xtensa_rtx_costs): Fix to also consider the result of
xtensa_b4constu().
gcc/testsuite/ChangeLog:
* gcc.target/xtensa/BGEUI-BLTUI-32k-64k.c: New.
Diffstat (limited to 'gcc/rust/backend/rust-compile-struct-field-expr.h')
0 files changed, 0 insertions, 0 deletions