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| author | Jakub Jelinek <jakub@redhat.com> | 2014-11-27 12:02:02 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2014-11-27 12:02:02 +0100 |
| commit | a7c7534348a4f6af27f5d17b83356619ad26f73c (patch) | |
| tree | 3536513031953b792c1f0e763e8cbea57a554432 | |
| parent | 84593a48f6446a48ee86724972fdcdcae143f9cd (diff) | |
| download | gcc-a7c7534348a4f6af27f5d17b83356619ad26f73c.zip gcc-a7c7534348a4f6af27f5d17b83356619ad26f73c.tar.gz gcc-a7c7534348a4f6af27f5d17b83356619ad26f73c.tar.bz2 | |
re PR lto/64025 (Several testsuite execution failures with -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects)
PR lto/64025
* alias.c (find_base_term): Use std::swap. Prefer tmp2
if it is CONSTANT_P other than CONST_INT.
From-SVN: r218119
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/alias.c | 10 |
2 files changed, 11 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 32e0bcb..b1ddd83 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2014-11-27 Jakub Jelinek <jakub@redhat.com> + + PR lto/64025 + * alias.c (find_base_term): Use std::swap. Prefer tmp2 + if it is CONSTANT_P other than CONST_INT. + 2014-11-27 Thomas Preud'homme <thomas.preudhomme@arm.com> PR target/59593 diff --git a/gcc/alias.c b/gcc/alias.c index 22717ad..e8675c5 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -1748,11 +1748,11 @@ find_base_term (rtx x) if (REG_P (tmp1) && REG_POINTER (tmp1)) ; else if (REG_P (tmp2) && REG_POINTER (tmp2)) - { - rtx tem = tmp1; - tmp1 = tmp2; - tmp2 = tem; - } + std::swap (tmp1, tmp2); + /* If second argument is constant which has base term, prefer it + over variable tmp1. See PR64025. */ + else if (CONSTANT_P (tmp2) && !CONST_INT_P (tmp2)) + std::swap (tmp1, tmp2); /* Go ahead and find the base term for both operands. If either base term is from a pointer or is a named object or a special address |