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| author | Claudiu Zissulescu <claziss@synopsys.com> | 2022-07-18 14:54:38 +0300 |
|---|---|---|
| committer | Claudiu Zissulescu <claziss@gmail.com> | 2022-07-18 15:00:53 +0300 |
| commit | c8697735abaca3b3dfe8ae4188a086d1fd7048eb (patch) | |
| tree | 333c48b1e8efa1a14e5c4f511cdbb703989a3706 /libgcc | |
| parent | 7313381d2ce44b72b4c9f70bd5670e5d78d1f631 (diff) | |
| download | gcc-c8697735abaca3b3dfe8ae4188a086d1fd7048eb.tar.gz | |
libgcc/arc: Update udivmodsi4 and make the lib safe for rf16
The ARC soft udivmodsi4 algorithm and as well as using umodsi3
for reduced register set configurations are wrong.
libgcc/
* config/arc/lib2funcs.c (udivmodsi4): Update AND mask.
* config/arc/lib1funcs.S (umodsi3): Don't use it for RF16
configurations.
Diffstat (limited to 'libgcc')
| -rw-r--r-- | libgcc/config/arc/lib1funcs.S | 2 | ||||
| -rw-r--r-- | libgcc/config/arc/lib2funcs.c | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/libgcc/config/arc/lib1funcs.S b/libgcc/config/arc/lib1funcs.S index 14fd1d2f303..b06361257d1 100644 --- a/libgcc/config/arc/lib1funcs.S +++ b/libgcc/config/arc/lib1funcs.S @@ -936,6 +936,7 @@ SYM(__divsi3): #endif /* L_divsi3 */ +#ifndef __ARC_RF16__ #ifdef L_umodsi3 .section .text .align 4 @@ -950,6 +951,7 @@ SYM(__umodsi3): ENDFUNC(__umodsi3) #endif /* L_umodsi3 */ +#endif /* !__ARC_RF16__ */ #ifdef L_modsi3 .section .text diff --git a/libgcc/config/arc/lib2funcs.c b/libgcc/config/arc/lib2funcs.c index 70727b55365..8cba45172b2 100644 --- a/libgcc/config/arc/lib2funcs.c +++ b/libgcc/config/arc/lib2funcs.c @@ -59,7 +59,7 @@ udivmodsi4 (nint32_t num, nint32_t den, word_t modwanted) nint32_t bit = 1; nint32_t res = 0; - while (den < num && bit && !(den & (1LL << 63))) + while (den < num && bit && !(den & (1L << 31))) { den <<= 1; bit <<= 1; |