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| author | Michael Zolotukhin <michael.v.zolotukhin@gmail.com> | 2013-09-10 07:53:22 +0000 |
|---|---|---|
| committer | Kirill Yukhin <kyukhin@gcc.gnu.org> | 2013-09-10 07:53:22 +0000 |
| commit | ff131f2627d91481bf40eb75b71a7d8234dbd7b0 (patch) | |
| tree | cc435bb331f3d3377c71f862697315d3bf356678 | |
| parent | 32a19da43b47265134ddbcca223f0adcead6673a (diff) | |
| download | gcc-ff131f2627d91481bf40eb75b71a7d8234dbd7b0.zip gcc-ff131f2627d91481bf40eb75b71a7d8234dbd7b0.tar.gz gcc-ff131f2627d91481bf40eb75b71a7d8234dbd7b0.tar.bz2 | |
i386.c (ix86_expand_movmem): Fix epilogue generation.
gcc:
* config/i386/i386.c (ix86_expand_movmem): Fix epilogue generation.
gcc/testsuite:
* gcc.dg/torture/memcpy-1.c: New test.
From-SVN: r202423
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/memcpy-1.c | 22 |
4 files changed, 31 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 56de596..9f4a4b0 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2013-09-10 Michael Zolotukhin <michael.v.zolotukhin@gmail.com> + + * config/i386/i386.c (ix86_expand_movmem): Fix epilogue generation. + 2013-09-10 Alan Modra <amodra@gmail.com> PR target/58330 diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index e2fa71a..1f07e6f 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -23329,7 +23329,7 @@ ix86_expand_movmem (rtx dst, rtx src, rtx count_exp, rtx align_exp, if (count_exp != const0_rtx && epilogue_size_needed > 1) expand_movmem_epilogue (dst, src, destreg, srcreg, count_exp, - size_needed); + epilogue_size_needed); if (jump_around_label) emit_label (jump_around_label); return true; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index ecfd091..a109887 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2013-09-10 Michael Zolotukhin <michael.v.zolotukhin@gmail.com> + + * gcc.dg/torture/memcpy-1.c: New test. + 2013-09-10 Alan Modra <amodra@gmail.com> * gcc.target/powerpc/pr58330.c: New. diff --git a/gcc/testsuite/gcc.dg/torture/memcpy-1.c b/gcc/testsuite/gcc.dg/torture/memcpy-1.c new file mode 100644 index 0000000..290c789 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/memcpy-1.c @@ -0,0 +1,22 @@ +/* { dg-do run } */ +/* { dg-additional-options "-mtune=pentiumpro" { target ia32 } } */ +/* { dg-additional-options "-minline-all-stringops" { target { i?86-*-* x86_64-*-* } } } */ + +static void __attribute__((noinline, noclone)) +my_memcpy (char *dest, const char *src, int n) +{ + __builtin_memcpy (dest, src, n); +} + +int +main (void) +{ + char a1[4], a2[4]; + __builtin_memset (a1, 'a', 4); + __builtin_memset (a2, 'b', 4); + my_memcpy (a2, a1, 4); + if (a2[0] != 'a') + __builtin_abort (); + return 0; +} + |