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| author | Steven Bosscher <stevenb@suse.de> | 2005-10-04 05:57:38 +0000 |
|---|---|---|
| committer | Steven Bosscher <steven@gcc.gnu.org> | 2005-10-04 05:57:38 +0000 |
| commit | 46fbb29c2ee1a905f9cad8b5004ff79fcf82bfeb (patch) | |
| tree | 7151af0afa8919a5d3d55f199b5534c2e0dbb2eb /gcc/testsuite/gcc.dg | |
| parent | 36dd6d31e4cfb026258d1885e788d7934521f694 (diff) | |
| download | gcc-46fbb29c2ee1a905f9cad8b5004ff79fcf82bfeb.zip gcc-46fbb29c2ee1a905f9cad8b5004ff79fcf82bfeb.tar.gz gcc-46fbb29c2ee1a905f9cad8b5004ff79fcf82bfeb.tar.bz2 | |
re PR tree-optimization/23049 (ICE with -O3 -ftree-vectorize on 4.1.x)
2005-10-05 Steven Bosscher <stevenb@suse.de>
gcc/
PR tree-optimization/23049
* tree-ssa-dom.c (thread_across_edge): Make sure that the condition
of a COND_EXPR is folded before calling fold on the whole rhs of a
conditional assignment.
* doc/tree-ssa.texi: Update the GIMPLE grammar for a valid rhs to
document that a COND_EXPR may appear there.
testsuite/
* gcc.dg/pr23049.c: New test.
* gcc.dg/ucnid-4.c: Fix test.
From-SVN: r104938
Diffstat (limited to 'gcc/testsuite/gcc.dg')
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr23049.c | 26 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/ucnid-4.c | 2 |
2 files changed, 27 insertions, 1 deletions
diff --git a/gcc/testsuite/gcc.dg/pr23049.c b/gcc/testsuite/gcc.dg/pr23049.c new file mode 100644 index 0000000..0a71cec --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr23049.c @@ -0,0 +1,26 @@ +/* This was an ICE in fold where we tried to fold something like, + + a = 0 == 0 ? 0 : 3988292384 + + after doing if-conversion for the vectorizer. Folding "0 == 0" + should have been done before calling fold on the whole rhs of + the above expression. */ + +/* { dg-do compile } */ +/* { dg-options "-O3 -ftree-vectorize" } */ + +static unsigned short int crc_table[256]; +void AC3_encode_init(void) +{ + unsigned int c, n, k; + for(n=0; n<256; n++) + { + c = n << 8; + for (k = 0; k < 8; k++) + { + if (c & (1 << 15)) + c = ((c << 1) & 0xffff) ^ (((1 << 0) | (1 << 2) | (1 << 15) | (1 << 16)) & 0xffff); + } + crc_table[n] = c; + } +} diff --git a/gcc/testsuite/gcc.dg/ucnid-4.c b/gcc/testsuite/gcc.dg/ucnid-4.c index f9bf68e..1fd4925 100644 --- a/gcc/testsuite/gcc.dg/ucnid-4.c +++ b/gcc/testsuite/gcc.dg/ucnid-4.c @@ -1,4 +1,4 @@ -/* { dg-do run */ +/* { dg-do run } */ /* { dg-xfail-if "" { "powerpc-ibm-aix*" } { "*" } { "" } } */ /* { dg-options "-std=c99 -fextended-identifiers" } */ void abort (void); |