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mpi: Fix ARM assembler in longlong.h. 

* mpi/longlong.h [__arm__] (add_ssaaaa, sub_ddmmss): Add __CLOBBER_CC.
[__arm__][__ARM_ARCH <= 3] (umul_ppmm): Add __AND_CLOBBER_CC.

--
This is a backport of libgcrypt 8aa4f2161 and 3b1cc9e6c.

Signed-off-by: Marcus Brinkmann <mb@g10code.com>
GnuPG-bug-id: 3182
This commit is contained in:
Marcus Brinkmann 2017-07-04 23:19:51 +02:00
parent 7b045f539e
commit 782f804765
1 changed files with 3 additions and 3 deletions
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6
mpi/longlong.h
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@ -189,7 +189,7 @@ extern UDItype __udiv_qrnnd ();
: "%r" ((USItype)(ah)), \
"rI" ((USItype)(bh)), \
"%r" ((USItype)(al)), \
"rI" ((USItype)(bl)))
"rI" ((USItype)(bl)) __CLOBBER_CC)
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
__asm__ ("subs %1, %4, %5\n" \
"sbc %0, %2, %3" \
@ -198,7 +198,7 @@ extern UDItype __udiv_qrnnd ();
: "r" ((USItype)(ah)), \
"rI" ((USItype)(bh)), \
"r" ((USItype)(al)), \
"rI" ((USItype)(bl)))
"rI" ((USItype)(bl)) __CLOBBER_CC)
#if defined __ARM_ARCH_2__ || defined __ARM_ARCH_3__
#define umul_ppmm(xh, xl, a, b) \
__asm__ ("%@ Inlined umul_ppmm\n" \
@ -218,7 +218,7 @@ extern UDItype __udiv_qrnnd ();
"=r" ((USItype)(xl)) \
: "r" ((USItype)(a)), \
"r" ((USItype)(b)) \
: "r0", "r1", "r2")
: "r0", "r1", "r2" __AND_CLOBBER_CC)
#else
#define umul_ppmm(xh, xl, a, b) \
__asm__ ("%@ Inlined umul_ppmm\n" \