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| author | Jakub Jelinek <jakub@redhat.com> | 2007-08-24 14:29:14 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2007-08-24 14:29:14 +0200 |
| commit | 14a43348bc523d889df7918ae8672b233b2ccf37 (patch) | |
| tree | e71678ea0f33cc3508fd3fe0dc995e4b09ea4872 /gcc/testsuite/gcc.dg/array-init-1.c | |
| parent | 492fc3e65ab2623ed56b8cbbcf0d8bd1c3552c12 (diff) | |
| download | gcc-14a43348bc523d889df7918ae8672b233b2ccf37.zip gcc-14a43348bc523d889df7918ae8672b233b2ccf37.tar.gz gcc-14a43348bc523d889df7918ae8672b233b2ccf37.tar.bz2 | |
expr.c (store_expr): Optimize initialization of an array with STRING_CST.
* expr.c (store_expr): Optimize initialization of an array
with STRING_CST.
* expr.h (builtin_strncpy_read_str): New prototype.
* builtins.c (builtin_strncpy_read_str): Remove prototype.
No longer static.
* gcc.dg/array-init-1.c: New test.
From-SVN: r127769
Diffstat (limited to 'gcc/testsuite/gcc.dg/array-init-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/array-init-1.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/array-init-1.c b/gcc/testsuite/gcc.dg/array-init-1.c new file mode 100644 index 0000000..8b866cc --- /dev/null +++ b/gcc/testsuite/gcc.dg/array-init-1.c @@ -0,0 +1,24 @@ +/* Test that both arrays are initialized by store_by_pieces. */ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ + +struct A { char c[10]; }; +extern void baz (struct A *); + +void +foo (void) +{ + struct A a = { "abcdefghi" }; + baz (&a); +} + +void +bar (void) +{ + struct A a; + __builtin_strcpy (&a.c[0], "abcdefghi"); + baz (&a); +} + +/* { dg-final { scan-assembler-not "abcdefghi" { target i?86-*-* x86_64-*-* ia64-*-* } } } */ +/* { dg-final { scan-assembler-times "7523094288207667809\|6867666564636261\|1684234849\|64636261" 2 { target i?86-*-* x86_64-*-* ia64-*-* } } } */ |