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.c-torture/execute/memset-2.c | 334 +++++++++++++++++++++++++ 1 file changed, 334 insertions(+) create mode 100644 gcc/testsuite/gcc.c-torture/execute/memset-2.c (limited to 'gcc/testsuite/gcc.c-torture/execute/memset-2.c') diff --git a/gcc/testsuite/gcc.c-torture/execute/memset-2.c b/gcc/testsuite/gcc.c-torture/execute/memset-2.c new file mode 100644 index 000000000..07c3db378 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/memset-2.c @@ -0,0 +1,334 @@ +/* Copyright (C) 2002 Free Software Foundation. + + Test memset with various combinations of pointer alignments and constant + lengths to make sure any optimizations in the compiler are correct. + + Written by Roger Sayle, April 22, 2002. */ + +#ifndef MAX_OFFSET +#define MAX_OFFSET (sizeof (long long)) +#endif + +#ifndef MAX_COPY +#define MAX_COPY 15 +#endif + +#ifndef MAX_EXTRA +#define MAX_EXTRA (sizeof (long long)) +#endif + +#define MAX_LENGTH (MAX_OFFSET + MAX_COPY + MAX_EXTRA) + +static union { + char buf[MAX_LENGTH]; + long long align_int; + long double align_fp; +} u; + +char A = 'A'; + +void reset () +{ + int i; + + for (i = 0; i < MAX_LENGTH; i++) + u.buf[i] = 'a'; +} + +void check (int off, int len, int ch) +{ + char *q; + int i; + + q = u.buf; + for (i = 0; i < off; i++, q++) + if (*q != 'a') + abort (); + + for (i = 0; i < len; i++, q++) + if (*q != ch) + abort (); + + for (i = 0; i < MAX_EXTRA; i++, q++) + if (*q != 'a') + abort (); +} + +int main () +{ + int off; + char *p; + + /* len == 1 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 1); + if (p != u.buf + off) abort (); + check (off, 1, '\0'); + + p = memset (u.buf + off, A, 1); + if (p != u.buf + off) abort (); + check (off, 1, 'A'); + + p = memset (u.buf + off, 'B', 1); + if (p != u.buf + off) abort (); + check (off, 1, 'B'); + } + + /* len == 2 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 2); + if (p != u.buf + off) abort (); + check (off, 2, '\0'); + + p = memset (u.buf + off, A, 2); + if (p != u.buf + off) abort (); + check (off, 2, 'A'); + + p = memset (u.buf + off, 'B', 2); + if (p != u.buf + off) abort (); + check (off, 2, 'B'); + } + + /* len == 3 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 3); + if (p != u.buf + off) abort (); + check (off, 3, '\0'); + + p = memset (u.buf + off, A, 3); + if (p != u.buf + off) abort (); + check (off, 3, 'A'); + + p = memset (u.buf + off, 'B', 3); + if (p != u.buf + off) abort (); + check (off, 3, 'B'); + } + + /* len == 4 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 4); + if (p != u.buf + off) abort (); + check (off, 4, '\0'); + + p = memset (u.buf + off, A, 4); + if (p != u.buf + off) abort (); + check (off, 4, 'A'); + + p = memset (u.buf + off, 'B', 4); + if (p != u.buf + off) abort (); + check (off, 4, 'B'); + } + + /* len == 5 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 5); + if (p != u.buf + off) abort (); + check (off, 5, '\0'); + + p = memset (u.buf + off, A, 5); + if (p != u.buf + off) abort (); + check (off, 5, 'A'); + + p = memset (u.buf + off, 'B', 5); + if (p != u.buf + off) abort (); + check (off, 5, 'B'); + } + + /* len == 6 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 6); + if (p != u.buf + off) abort (); + check (off, 6, '\0'); + + p = memset (u.buf + off, A, 6); + if (p != u.buf + off) abort (); + check (off, 6, 'A'); + + p = memset (u.buf + off, 'B', 6); + if (p != u.buf + off) abort (); + check (off, 6, 'B'); + } + + /* len == 7 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 7); + if (p != u.buf + off) abort (); + check (off, 7, '\0'); + + p = memset (u.buf + off, A, 7); + if (p != u.buf + off) abort (); + check (off, 7, 'A'); + + p = memset (u.buf + off, 'B', 7); + if (p != u.buf + off) abort (); + check (off, 7, 'B'); + } + + /* len == 8 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 8); + if (p != u.buf + off) abort (); + check (off, 8, '\0'); + + p = memset (u.buf + off, A, 8); + if (p != u.buf + off) abort (); + check (off, 8, 'A'); + + p = memset (u.buf + off, 'B', 8); + if (p != u.buf + off) abort (); + check (off, 8, 'B'); + } + + /* len == 9 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 9); + if (p != u.buf + off) abort (); + check (off, 9, '\0'); + + p = memset (u.buf + off, A, 9); + if (p != u.buf + off) abort (); + check (off, 9, 'A'); + + p = memset (u.buf + off, 'B', 9); + if (p != u.buf + off) abort (); + check (off, 9, 'B'); + } + + /* len == 10 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 10); + if (p != u.buf + off) abort (); + check (off, 10, '\0'); + + p = memset (u.buf + off, A, 10); + if (p != u.buf + off) abort (); + check (off, 10, 'A'); + + p = memset (u.buf + off, 'B', 10); + if (p != u.buf + off) abort (); + check (off, 10, 'B'); + } + + /* len == 11 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 11); + if (p != u.buf + off) abort (); + check (off, 11, '\0'); + + p = memset (u.buf + off, A, 11); + if (p != u.buf + off) abort (); + check (off, 11, 'A'); + + p = memset (u.buf + off, 'B', 11); + if (p != u.buf + off) abort (); + check (off, 11, 'B'); + } + + /* len == 12 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 12); + if (p != u.buf + off) abort (); + check (off, 12, '\0'); + + p = memset (u.buf + off, A, 12); + if (p != u.buf + off) abort (); + check (off, 12, 'A'); + + p = memset (u.buf + off, 'B', 12); + if (p != u.buf + off) abort (); + check (off, 12, 'B'); + } + + /* len == 13 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 13); + if (p != u.buf + off) abort (); + check (off, 13, '\0'); + + p = memset (u.buf + off, A, 13); + if (p != u.buf + off) abort (); + check (off, 13, 'A'); + + p = memset (u.buf + off, 'B', 13); + if (p != u.buf + off) abort (); + check (off, 13, 'B'); + } + + /* len == 14 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 14); + if (p != u.buf + off) abort (); + check (off, 14, '\0'); + + p = memset (u.buf + off, A, 14); + if (p != u.buf + off) abort (); + check (off, 14, 'A'); + + p = memset (u.buf + off, 'B', 14); + if (p != u.buf + off) abort (); + check (off, 14, 'B'); + } + + /* len == 15 */ + for (off = 0; off < MAX_OFFSET; off++) + { + reset (); + + p = memset (u.buf + off, '\0', 15); + if (p != u.buf + off) abort (); + check (off, 15, '\0'); + + p = memset (u.buf + off, A, 15); + if (p != u.buf + off) abort (); + check (off, 15, 'A'); + + p = memset (u.buf + off, 'B', 15); + if (p != u.buf + off) abort (); + check (off, 15, 'B'); + } + + exit (0); +} + -- cgit v1.2.3