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| author | Jakub Jelinek <jakub@redhat.com> | 2016-08-30 08:45:56 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2016-08-30 08:45:56 +0200 |
| commit | 26122e2d8a1aa5e8ea91f7df94513cde1e2de509 (patch) | |
| tree | 7e28037ad6ece73174d26d1748b4aa22362f6048 /gcc | |
| parent | ab8348325fede96edbd63fdc233173682c8496d5 (diff) | |
| download | gcc-26122e2d8a1aa5e8ea91f7df94513cde1e2de509.zip gcc-26122e2d8a1aa5e8ea91f7df94513cde1e2de509.tar.gz gcc-26122e2d8a1aa5e8ea91f7df94513cde1e2de509.tar.bz2 | |
re PR middle-end/77377 (c-c++-common/pr59037.c ICEs with -fpic -msse on i686)
PR middle-end/77377
* simplify-rtx.c (avoid_constant_pool_reference): For out of bounds
constant pool reference return x instead of c.
* gcc.target/i386/pr77377.c: New test.
From-SVN: r239854
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/simplify-rtx.c | 7 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr77377.c | 6 |
4 files changed, 18 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b7117b4..347c7c6 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-08-30 Jakub Jelinek <jakub@redhat.com> + + PR middle-end/77377 + * simplify-rtx.c (avoid_constant_pool_reference): For out of bounds + constant pool reference return x instead of c. + 2016-08-29 Segher Boessenkool <segher@kernel.crashing.org> * config/rs6000/rs6000.h (CALL_REALLY_USED_REGISTERS): Do not diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 2085b99..8daef97 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -251,15 +251,14 @@ avoid_constant_pool_reference (rtx x) /* If we're accessing the constant in a different mode than it was originally stored, attempt to fix that up via subreg simplifications. If that fails we have no choice but to return the original memory. */ - if ((offset != 0 || cmode != GET_MODE (x)) - && offset >= 0 && offset < GET_MODE_SIZE (cmode)) + if (offset == 0 && cmode == GET_MODE (x)) + return c; + else if (offset >= 0 && offset < GET_MODE_SIZE (cmode)) { rtx tem = simplify_subreg (GET_MODE (x), c, cmode, offset); if (tem && CONSTANT_P (tem)) return tem; } - else - return c; } return x; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index c62855c..7a43581 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,8 @@ 2016-08-30 Jakub Jelinek <jakub@redhat.com> + PR middle-end/77377 + * gcc.target/i386/pr77377.c: New test. + PR debug/77389 * g++.dg/debug/dwarf2/template-params-12f.C: Pass -gno-strict-dwarf in dg-options. diff --git a/gcc/testsuite/gcc.target/i386/pr77377.c b/gcc/testsuite/gcc.target/i386/pr77377.c new file mode 100644 index 0000000..4f7eaa4 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr77377.c @@ -0,0 +1,6 @@ +/* PR middle-end/77377 */ +/* { dg-do compile } */ +/* { dg-options "-O3 -msse" } */ +/* { dg-additional-options "-fpic" { target fpic } } */ + +#include "../../c-c++-common/pr59037.c" |