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| author | CoprDistGit <infra@openeuler.org> | 2024-08-06 02:28:05 +0000 |
|---|---|---|
| committer | CoprDistGit <infra@openeuler.org> | 2024-08-06 02:28:05 +0000 |
| commit | 29c0e466892b96669b3d9b0a4ce5a5d43a1414c9 (patch) | |
| tree | 5b99ab3da32adbb65a82838a193767a67583fe77 /Provide-Thumb-2-alternative-code-for-MAD_F_MLN.diff | |
| parent | 77080aa9e82c816630e454f3555fac9b2555e0d1 (diff) | |
automatic import of libmadopeneuler24.03_LTS
Diffstat (limited to 'Provide-Thumb-2-alternative-code-for-MAD_F_MLN.diff')
| -rw-r--r-- | Provide-Thumb-2-alternative-code-for-MAD_F_MLN.diff | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Provide-Thumb-2-alternative-code-for-MAD_F_MLN.diff b/Provide-Thumb-2-alternative-code-for-MAD_F_MLN.diff new file mode 100644 index 0000000..4641510 --- /dev/null +++ b/Provide-Thumb-2-alternative-code-for-MAD_F_MLN.diff @@ -0,0 +1,34 @@ +From: Dave Martin +Subject: "rsc" doesnt exist anymore in thumb2 + +diff --git a/fixed.h b/fixed.h +index 4b58abf..ba4bc26 100644 +--- a/fixed.h ++++ b/fixed.h +@@ -275,12 +275,25 @@ mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y) + : "+r" (lo), "+r" (hi) \ + : "%r" (x), "r" (y)) + ++#ifdef __thumb__ ++/* In Thumb-2, the RSB-immediate instruction is only allowed with a zero ++ operand. If needed this code can also support Thumb-1 ++ (simply append "s" to the end of the second two instructions). */ ++# define MAD_F_MLN(hi, lo) \ ++ asm ("rsbs %0, %0, #0\n\t" \ ++ "sbc %1, %1, %1\n\t" \ ++ "sub %1, %1, %2" \ ++ : "+&r" (lo), "=&r" (hi) \ ++ : "r" (hi) \ ++ : "cc") ++#else /* ! __thumb__ */ + # define MAD_F_MLN(hi, lo) \ + asm ("rsbs %0, %2, #0\n\t" \ + "rsc %1, %3, #0" \ +- : "=r" (lo), "=r" (hi) \ ++ : "=&r" (lo), "=r" (hi) \ + : "0" (lo), "1" (hi) \ + : "cc") ++#endif /* __thumb__ */ + + # define mad_f_scale64(hi, lo) \ + ({ mad_fixed_t __result; \ |