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Fix bootstrap/PR63632 

r216566 (r216568 for 4.9 branch) added %{fno-lto} to LINK_COMMAND_SPEC.
However the linker doesn't understand -fno-lto and errors out.
This causes an LTO/PGO bootstrap failure, because -fno-lto is used
during STAGEprofile.
Fixed by filtering out -fno-lto in collect2.c.

From-SVN: r216613
This commit is contained in:
Markus Trippelsdorf 2014-10-24 06:39:24 +00:00 committed by Markus Trippelsdorf
parent f1c859ee84
commit fa608e77c2
4 changed files with 21 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2014-10-24 Markus Trippelsdorf <markus@trippelsdorf.de>
PR bootstrap/63632
* collect2.c (main): Filter out -fno-lto.
2014-10-24 Martin Liska <mliska@suse.cz>
* ipa-icf.c (sem_item_optimizer::parse_nonsingleton_classes): Guard

6
gcc/collect2.c
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@ -1311,6 +1311,12 @@ main (int argc, char **argv)
ld1--;
ld2--;
}
else if (strncmp (arg, "-fno-lto", 8) == 0)
{
/* Do not pass -fno-lto to the linker. */
ld1--;
ld2--;
}
#ifdef TARGET_AIX_VERSION
else
{

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2014-10-24 Markus Trippelsdorf <markus@trippelsdorf.de>
PR bootstrap/63632
* g++.dg/torture/pr63632.C: New test.
2014-10-23 Jonathan Wakely <jwakely@redhat.com>
PR c++/63619

5
gcc/testsuite/g++.dg/torture/pr63632.C Normal file
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@ -0,0 +1,5 @@
// PR bootstrap/63632
// { dg-do link }
// { dg-options "-fno-lto" }
int main () {}