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[RS6000] Out-of-line register save functions can't be used from crtend.o 

PR target/45053
	* config/rs6000/t-crtstuff (CRTSTUFF_T_CFLAGS): Add -O2.

From-SVN: r246749
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Alan Modra 2017-04-07 11:00:43 +09:30 committed by Alan Modra
parent ba7865c179
commit 2bdf7fc6e6
2 changed files with 9 additions and 1 deletions
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5
libgcc/ChangeLog
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@ -1,3 +1,8 @@
2017-04-07 Alan Modra <amodra@gmail.com>
PR target/45053
* config/rs6000/t-crtstuff (CRTSTUFF_T_CFLAGS): Add -O2.
2017-04-03 Jonathan Wakely <jwakely@redhat.com>
* config/c6x/pr-support.c (__gnu_unwind_execute): Fix typo in comment.

5
libgcc/config/rs6000/t-crtstuff
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# If .sdata is enabled __CTOR_{LIST,END}__ go into .sdata instead of
# .ctors.
CRTSTUFF_T_CFLAGS = -msdata=none
# Do not build crtend.o with -Os as that can result in references to
# out-of-line register save/restore functions, which may be unresolved
# as crtend.o is linked after libgcc.a. See PR45053.
CRTSTUFF_T_CFLAGS = -msdata=none -O2