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[patch] Fix PR middle-end/41009
- From: "John David Anglin" <dave at hiauly1 dot hia dot nrc dot ca>
- To: gcc-patches at gcc dot gnu dot org
- Cc: rguenther at suse dot de
- Date: Thu, 17 Sep 2009 20:49:52 -0400 (EDT)
- Subject: [patch] Fix PR middle-end/41009
Backporting the fix for PR 37850 fixes PR 41009. Tested on
hppa2.0w-hp-hpux11.11 and hppa64-hp-hpux11.11 with no regressions.
Ok to apply to 4.3?
Dave
--
J. David Anglin dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada (613) 990-0752 (FAX: 952-6602)
2009-09-17 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
PR middle-end/41009
Backport from mainline
2009-03-10 Richard Guenther <rguenther@suse.de>
Nathan Froyd <froydnj@codesourcery.com>
PR middle-end/37850
* libgcc2.c (__mulMODE3): Use explicit assignments to form the result.
(__divMODE3): Likewise.
Index: libgcc2.c
===================================================================
--- libgcc2.c (revision 150499)
+++ libgcc2.c (working copy)
@@ -1830,6 +1830,7 @@
CONCAT3(__mul,MODE,3) (MTYPE a, MTYPE b, MTYPE c, MTYPE d)
{
MTYPE ac, bd, ad, bc, x, y;
+ CTYPE res;
ac = a * c;
bd = b * d;
@@ -1886,7 +1887,9 @@
}
}
- return x + I * y;
+ __real__ res = x;
+ __imag__ res = y;
+ return res;
}
#endif /* complex multiply */
@@ -1897,6 +1900,7 @@
CONCAT3(__div,MODE,3) (MTYPE a, MTYPE b, MTYPE c, MTYPE d)
{
MTYPE denom, ratio, x, y;
+ CTYPE res;
/* ??? We can get better behavior from logarithmic scaling instead of
the division. But that would mean starting to link libgcc against
@@ -1942,7 +1946,9 @@
}
}
- return x + I * y;
+ __real__ res = x;
+ __imag__ res = y;
+ return res;
}
#endif /* complex divide */