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| author | Jakub Jelinek <jakub@redhat.com> | 2005-08-21 15:27:56 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2005-08-21 15:27:56 +0200 |
| commit | 1125164cd32576b05e6c078077d78736fa0d63e3 (patch) | |
| tree | 53f59061ef5b672943a8efb5c4d2d4046a85a6b7 /gcc | |
| parent | 3c0c8f9dff5c2fd1e71fcbc5c05a65a33caa0303 (diff) | |
| download | gcc-1125164cd32576b05e6c078077d78736fa0d63e3.zip gcc-1125164cd32576b05e6c078077d78736fa0d63e3.tar.gz gcc-1125164cd32576b05e6c078077d78736fa0d63e3.tar.bz2 | |
simplify-rtx.c (simplify_immed_subreg): Only clear up to elem_bitsize bits, not max_bitsize.
* simplify-rtx.c (simplify_immed_subreg) <case CONST_DOUBLE>: Only clear
up to elem_bitsize bits, not max_bitsize.
* gcc.target/i386/sse-4.c: New test.
From-SVN: r103318
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/simplify-rtx.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/sse-4.c | 10 |
4 files changed, 20 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1329cf2..90e30ae 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2005-08-21 Jakub Jelinek <jakub@redhat.com> + + * simplify-rtx.c (simplify_immed_subreg) <case CONST_DOUBLE>: Only clear + up to elem_bitsize bits, not max_bitsize. + 2005-08-21 Sebastian Pop <pop@cri.ensmp.fr> PR tree-optimization/23433 diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index ca9d9da..8a2faae 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -3605,7 +3605,7 @@ simplify_immed_subreg (enum machine_mode outermode, rtx op, } /* It shouldn't matter what's done here, so fill it with zero. */ - for (; i < max_bitsize; i += value_bit) + for (; i < elem_bitsize; i += value_bit) *vp++ = 0; } else diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index f248940..310c782 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2005-08-21 Jakub Jelinek <jakub@redhat.com> + + * gcc.target/i386/sse-4.c: New test. + 2005-08-20 John David Anglin <dave.anglin@nrc-cnrc.gc.ca> PR testsuite/23239 diff --git a/gcc/testsuite/gcc.target/i386/sse-4.c b/gcc/testsuite/gcc.target/i386/sse-4.c new file mode 100644 index 0000000..394ad9d --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/sse-4.c @@ -0,0 +1,10 @@ +/* This testcase caused a buffer overflow in simplify_immed_subreg. */ +/* { dg-do compile } */ +/* { dg-options "-O2 -msse2" } */ + +#include <emmintrin.h> + +__m128i foo (__m128i x) +{ + return _mm_min_epu8 (x, _mm_set1_epi8 (10)); +} |