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| author | Edwin Lu <ewlu@rivosinc.com> | 2024-07-24 16:37:18 -0700 |
|---|---|---|
| committer | Edwin Lu <ewlu@rivosinc.com> | 2024-07-30 10:56:58 -0700 |
| commit | 7ef8a9d4b1cea3fea3791859074df79b71abd549 (patch) | |
| tree | 489b25ab6a4a14ff1402015feca74833afb2008d /gcc/config.in | |
| parent | ee12a13d25778a1ad8a9b5dc63aadf9f4320088b (diff) | |
| download | gcc-7ef8a9d4b1cea3fea3791859074df79b71abd549.zip gcc-7ef8a9d4b1cea3fea3791859074df79b71abd549.tar.gz gcc-7ef8a9d4b1cea3fea3791859074df79b71abd549.tar.bz2 | |
RISC-V: Add configure check for B extention support
Binutils 2.42 and before don't recognize the b extension in the march
strings even though it supports zba_zbb_zbs. Add a configure check to
ignore the b in the march string if found.
gcc/ChangeLog:
* common/config/riscv/riscv-common.cc (riscv_subset_list::to_string):
Skip b in march string
* config.in: Regenerate.
* configure: Regenerate.
* configure.ac: Add B assembler check
Signed-off-by: Edwin Lu <ewlu@rivosinc.com>
Diffstat (limited to 'gcc/config.in')
| -rw-r--r-- | gcc/config.in | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/config.in b/gcc/config.in index 3af153e..7fcabbe 100644 --- a/gcc/config.in +++ b/gcc/config.in @@ -629,6 +629,12 @@ #endif +/* Define if the assembler understands -march=rv*_b. */ +#ifndef USED_FOR_TARGET +#undef HAVE_AS_MARCH_B +#endif + + /* Define if the assembler understands -march=rv*_zaamo_zalrsc. */ #ifndef USED_FOR_TARGET #undef HAVE_AS_MARCH_ZAAMO_ZALRSC |