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.c-torture/execute/builtins/mempcpy.c | 68 ++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 gcc/testsuite/gcc.c-torture/execute/builtins/mempcpy.c (limited to 'gcc/testsuite/gcc.c-torture/execute/builtins/mempcpy.c') diff --git a/gcc/testsuite/gcc.c-torture/execute/builtins/mempcpy.c b/gcc/testsuite/gcc.c-torture/execute/builtins/mempcpy.c new file mode 100644 index 000000000..d82e2232d --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/builtins/mempcpy.c @@ -0,0 +1,68 @@ +/* Copyright (C) 2003 Free Software Foundation. + + Ensure builtin mempcpy performs correctly. + + Written by Kaveh Ghazi, 4/11/2003. */ + +extern void abort (void); +typedef __SIZE_TYPE__ size_t; +extern size_t strlen(const char *); +extern void *memcpy (void *, const void *, size_t); +extern void *mempcpy (void *, const void *, size_t); +extern int memcmp (const void *, const void *, size_t); +extern int inside_main; + +const char s1[] = "123"; +char p[32] = ""; +char *s2 = "defg"; +char *s3 = "FGH"; +size_t l1 = 1; + +void +main_test (void) +{ + int i; + +#if !defined __i386__ && !defined __x86_64__ + /* The functions below might not be optimized into direct stores on all + arches. It depends on how many instructions would be generated and + what limits the architecture chooses in STORE_BY_PIECES_P. */ + inside_main = 0; +#endif + + if (mempcpy (p, "ABCDE", 6) != p + 6 || memcmp (p, "ABCDE", 6)) + abort (); + if (mempcpy (p + 16, "VWX" + 1, 2) != p + 16 + 2 + || memcmp (p + 16, "WX\0\0", 5)) + abort (); + if (mempcpy (p + 1, "", 1) != p + 1 + 1 || memcmp (p, "A\0CDE", 6)) + abort (); + if (mempcpy (p + 3, "FGHI", 4) != p + 3 + 4 || memcmp (p, "A\0CFGHI", 8)) + abort (); + + i = 8; + memcpy (p + 20, "qrstu", 6); + memcpy (p + 25, "QRSTU", 6); + if (mempcpy (p + 25 + 1, s1, 3) != (p + 25 + 1 + 3) + || memcmp (p + 25, "Q123U", 6)) + abort (); + + if (mempcpy (mempcpy (p, "abcdEFG", 4), "efg", 4) != p + 8 + || memcmp (p, "abcdefg", 8)) + abort(); + + /* Test at least one instance of the __builtin_ style. We do this + to ensure that it works and that the prototype is correct. */ + if (__builtin_mempcpy (p, "ABCDE", 6) != p + 6 || memcmp (p, "ABCDE", 6)) + abort (); + + /* If the result of mempcpy is ignored, gcc should use memcpy. + This should be optimized always, so set inside_main again. */ + inside_main = 1; + mempcpy (p + 5, s3, 1); + if (memcmp (p, "ABCDEFg", 8)) + abort (); + mempcpy (p + 6, s1 + 1, l1); + if (memcmp (p, "ABCDEF2", 8)) + abort (); +} -- cgit v1.2.3