diff options
Diffstat (limited to 'gcc/testsuite/gcc.target/arm/unaligned-memcpy-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.target/arm/unaligned-memcpy-1.c | 34 |
1 files changed, 23 insertions, 11 deletions
diff --git a/gcc/testsuite/gcc.target/arm/unaligned-memcpy-1.c b/gcc/testsuite/gcc.target/arm/unaligned-memcpy-1.c index c4f5640..0d883e3 100644 --- a/gcc/testsuite/gcc.target/arm/unaligned-memcpy-1.c +++ b/gcc/testsuite/gcc.target/arm/unaligned-memcpy-1.c @@ -1,19 +1,31 @@ -/* { dg-do compile } */ -/* { dg-require-effective-target arm_unaligned } */ -/* { dg-options "-O2" } */ +/* { dg-do run } */ +/* { dg-options "-O2 -save-temps" } */ #include <string.h> -void unknown_alignment (char *dest, char *src) +char src[17] __attribute__ ((aligned(8))) = "abcdefghijklmnopq"; +char result[17] __attribute__ ((aligned(8))) = {0}; + +void __attribute__ ((noinline,noclone)) +unknown_alignment (char *dest, char *src) { memcpy (dest, src, 15); } -/* We should see three unaligned word loads and store pairs, one unaligned - ldrh/strh pair, and an ldrb/strb pair. Sanity check that. */ +int main () +{ + int i; + unknown_alignment (result+1, src+2); + for (i = 0; i < 15; i++) + if (result[i+1] != src[i+2]) + __builtin_abort (); + if (result[16] != 0) + __builtin_abort (); + return 0; +} + +/* Check that we don't use any instructions that assume an aligned source. */ +/* { dg-final { scan-assembler-not {(ldm(ia)?\tr[0-9]|ldrd\t.*\[r[0-9]|vldr)} } } */ -/* { dg-final { scan-assembler-times "@ unaligned" 8 } } */ -/* { dg-final { scan-assembler-times "ldrh" 1 } } */ -/* { dg-final { scan-assembler-times "strh" 1 } } */ -/* { dg-final { scan-assembler-times "ldrb" 1 } } */ -/* { dg-final { scan-assembler-times "strb" 1 } } */ +/* Check that we don't use any instructions that assume an aligned dest. */ +/* { dg-final { scan-assembler-not {(stm(ia)?\tr[0-9]|strd\t.*\[r[0-9]|vstr)} } } */ |