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Add "ld -r" tests for PR ld/15323 

Weak defined function is turned into non-weak defined function by
"ld -r -flto" with GCC 5 due to a GCC 5 regression:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67548

Add "ld -r" tests for PR ld/15323 to make sure that any linker change
won't introduce linker regression for PR ld/15323.

	* ld-plugin/lto.exp (lto_link_tests): Add a "ld -r" test for
	PR ld/15323.
	(lto_run_tests): Add a "ld -r" test for PR ld/15323.
This commit is contained in:
H.J. Lu 2015-09-11 10:02:57 -07:00
parent 669e74e829
commit 6d636d8c77
3 changed files with 26 additions and 5 deletions
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6
ld/testsuite/ChangeLog
View File

@ -1,3 +1,9 @@
2015-09-11 H.J. Lu <hongjiu.lu@intel.com>
* ld-plugin/lto.exp (lto_link_tests): Add a "ld -r" test for
PR ld/15323.
(lto_run_tests): Add a "ld -r" test for PR ld/15323.
2015-09-09 Jiong Wang <jiong.wang@arm.com>
* ld-aarch64/tls-relax-ld-le-tiny.s: New testcase.

10
ld/testsuite/ld-plugin/lto.exp
View File

@ -160,9 +160,12 @@ set lto_link_tests [list \
[list "PR ld/13287" \
"-flto -fuse-linker-plugin -Wl,--as-needed" "-flto" \
{pr13287.cc} {} "pr13287.exe" "c++"] \
[list "PR ld/15323" \
[list "PR ld/15323 (1)" \
"" "-O2" \
{pr15323a.c} {} "" "c"] \
[list "PR ld/15323 (2)" \
"-O2 -flto -r -nostdlib" "-O2 -flto" \
{pr15323a.c} {} "pr15323a-r.o" "c"] \
[list "Compile(1) PR ld/pr16846" \
"" "-flto" \
{pr16846a.c pr16846b.c} {} ""] \
@ -315,9 +318,12 @@ set lto_run_tests [list \
[list "PR ld/13201" \
"-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr13201.o -lm" "" \
{dummy.c} "pr13201.exe" "pr13201.out" "" "c"] \
[list "PR ld/15323" \
[list "PR ld/15323 (3)" \
"-O2 -flto -fuse-linker-plugin tmpdir/pr15323a.o" "" \
{pr15323b.c} "pr15323.exe" "pr15323.out" "-flto -O2" "c"] \
[list "PR ld/15323 (4)" \
"-O2 -flto tmpdir/pr15323a-r.o" "" \
{dummy.c} "pr15323a.exe" "pr15323.out" "-flto -O2" "c"] \
]
if { [at_least_gcc_version 4 7] } {

15
ld/testsuite/ld-plugin/pr15323a.c
View File

@ -1,14 +1,23 @@
#include <stdio.h>
int x;
int y;
__attribute__((weak))
void foobar (void) { x++; }
void foobar (void) { y++; x++; }
int main (void)
{
foobar ();
if (x == -1)
printf ("OK\n");
if (y == 0)
{
if (x == -1)
printf ("OK\n");
}
else
{
if (x == 1)
printf ("OK\n");
}
return 0;
}