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| author | Jan Dubiec <jdx@o2.pl> | 2025-03-01 08:21:16 -0700 |
|---|---|---|
| committer | Jeff Law <jlaw@ventanamicro.com> | 2025-03-01 08:21:16 -0700 |
| commit | 898f22d15805229a932fff7f22a0a8054e1b9b31 (patch) | |
| tree | 259c4e7d7e9066a46456460d7c0719a95041eabf /gcc/data-streamer-in.cc | |
| parent | dfdbad87aeb2deff9e13a394659ac7b37173648a (diff) | |
| download | gcc-898f22d15805229a932fff7f22a0a8054e1b9b31.zip gcc-898f22d15805229a932fff7f22a0a8054e1b9b31.tar.gz gcc-898f22d15805229a932fff7f22a0a8054e1b9b31.tar.bz2 | |
[PATCH] H8/300, libgcc: PR target/114222 For HImode call internal ffs() implementation instead of an external one
When INT_TYPE_SIZE < BITS_PER_WORD gcc emits a call to an external ffs()
implementation instead of a call to "__builtin_ffs()" – see function
init_optabs() in <SRCROOT>/gcc/optabs-libfuncs.cc. External ffs()
(which is usually the one from newlib) in turn calls __builtin_ffs()
what causes infinite recursion and stack overflow. This patch overrides
default gcc bahaviour for H8/300H (and newer) and provides a generic
ffs() implementation for HImode.
PR target/114222
gcc/ChangeLog:
* config/h8300/h8300.cc (h8300_init_libfuncs): For HImode override
calls to external ffs() (from newlib) with calls to __ffshi2() from
libgcc. The implementation of ffs() in newlib calls __builtin_ffs()
what causes infinite recursion and finally a stack overflow.
libgcc/ChangeLog:
* config/h8300/t-h8300: Add __ffshi2().
* config/h8300/ffshi2.c: New file.
Diffstat (limited to 'gcc/data-streamer-in.cc')
0 files changed, 0 insertions, 0 deletions