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authorH.J. Lu <hjl.tools@gmail.com>2015-07-14 09:17:41 -0700
committerH.J. Lu <hjl.tools@gmail.com>2015-07-14 09:18:16 -0700
commitdc2edb520a534fd0c2af169d46b4d892208e8f42 (patch)
treefaf0dd6184b712a03e7781c4f05119573f2397fd /include/longlong.h
parentd0270d8cb92123b55d2bf735e59ee9450a9893f9 (diff)
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Sync longlong.h with GCC
Sync with GCC 2014-10-28 Richard Henderson <rth@redhat.com> * longlong.h [__alpha] (umul_ppmm): Disable for c++.
Diffstat (limited to 'include/longlong.h')
-rw-r--r--include/longlong.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/longlong.h b/include/longlong.h
index 4f2c4f5..a0b2ce1 100644
--- a/include/longlong.h
+++ b/include/longlong.h
@@ -139,6 +139,9 @@ extern const UQItype __clz_tab[256] attribute_hidden;
#endif /* __aarch64__ */
#if defined (__alpha) && W_TYPE_SIZE == 64
+/* There is a bug in g++ before version 5 that
+ errors on __builtin_alpha_umulh. */
+#if !defined(__cplusplus) || __GNUC__ >= 5
#define umul_ppmm(ph, pl, m0, m1) \
do { \
UDItype __m0 = (m0), __m1 = (m1); \
@@ -146,6 +149,7 @@ extern const UQItype __clz_tab[256] attribute_hidden;
(pl) = __m0 * __m1; \
} while (0)
#define UMUL_TIME 46
+#endif /* !c++ */
#ifndef LONGLONG_STANDALONE
#define udiv_qrnnd(q, r, n1, n0, d) \
do { UDItype __r; \