From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/gcc.dg/pr23049.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/pr23049.c (limited to 'gcc/testsuite/gcc.dg/pr23049.c') diff --git a/gcc/testsuite/gcc.dg/pr23049.c b/gcc/testsuite/gcc.dg/pr23049.c new file mode 100644 index 000000000..e58cef8fe --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr23049.c @@ -0,0 +1,27 @@ +/* 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-require-effective-target int32plus } */ +/* { 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; + } +} -- cgit v1.2.3