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authorTorbjörn Granlund <tg@gmplib.org>2013-03-04 17:57:33 +0000
committerPádraig Brady <P@draigBrady.com>2013-03-04 18:09:49 +0000
commit9fe7c5b6eb373d859390dd5a7844a666d8b7818b (patch)
treed884caf83627061f0dfe5de4acaa3142c4f97979 /src/longlong.h
parent0a16f9732dee129315dd916eddb320039301df1b (diff)
downloadcoreutils-9fe7c5b6eb373d859390dd5a7844a666d8b7818b.tar.xz
build: fix factor build failure on aarch64
* src/longlong.h (__aarch64__): Make add_ssaaaa and sub_ddmmss work. * NEWS: Mention the build fix. Reported at https://bugzilla.redhat.com/917735
Diffstat (limited to 'src/longlong.h')
-rw-r--r--src/longlong.h21
1 files changed, 7 insertions, 14 deletions
diff --git a/src/longlong.h b/src/longlong.h
index 468164297..eba241762 100644
--- a/src/longlong.h
+++ b/src/longlong.h
@@ -529,23 +529,16 @@ extern UWtype __MPN(udiv_qrnnd) (UWtype *, UWtype, UWtype, UWtype);
#endif /* __arm__ */
#if defined (__aarch64__) && W_TYPE_SIZE == 64
+/* FIXME: Extend the immediate range for the low word by using both
+ ADDS and SUBS, since they set carry in the same way. */
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
- __asm__ ("adds\t%1, %4, %5\n\tadc\t%0, %2, %3" \
+ __asm__ ("adds\t%1, %x4, %5\n\tadc\t%0, %x2, %x3" \
: "=r" (sh), "=&r" (sl) \
- : "r" (ah), "rZ" (bh), "%r" (al), "rI" (bl) __CLOBBER_CC)
+ : "rZ" (ah), "rZ" (bh), "%r" (al), "rI" (bl) __CLOBBER_CC)
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
- do { \
- if (__builtin_constant_p (bl)) \
- { \
- __asm__ ("subs\t%1, %4, %5\n\tsbc\t%0, %2, %3" \
- : "=r" (sh), "=&r" (sl) \
- : "r" (ah), "r" (bh), "r" (al), "rI" (bl) __CLOBBER_CC); \
- } \
- else /* only bh might be a constant */ \
- __asm__ ("subs\t%1, %4, %5\n\tsbc\t%0, %2, %3" \
- : "=r" (sh), "=&r" (sl) \
- : "r" (ah), "rZ" (bh), "r" (al), "rI" (bl) __CLOBBER_CC);\
- } while (0)
+ __asm__ ("subs\t%1, %x4, %5\n\tsbc\t%0, %x2, %x3" \
+ : "=r,r" (sh), "=&r,&r" (sl) \
+ : "rZ,rZ" (ah), "rZ,rZ" (bh), "r,Z" (al), "rI,r" (bl) __CLOBBER_CC)
#define umul_ppmm(ph, pl, m0, m1) \
do { \
UDItype __m0 = (m0), __m1 = (m1); \