https://gcc.gnu.org/g:2830cc4cbc025e2aa13f3706ffbbbde61146f624
commit r16-9184-g2830cc4cbc025e2aa13f3706ffbbbde61146f624 Author: H.J. Lu <[email protected]> Date: Fri Jun 26 12:14:45 2026 +0800 x86: Add run-time memmove tests inlined with various bounds Add run-time memmove tests inlined with various bounds with overlapping source and destination. * gcc.target/i386/builtin-memmove-bounded-1a.c: New test. * gcc.target/i386/builtin-memmove-bounded-1b.c: Likewise. Signed-off-by: H.J. Lu <[email protected]> (cherry picked from commit 8e205d504de370a36ba7b41ea3ef9d2e2c08bb8f) Diff: --- .../gcc.target/i386/builtin-memmove-bounded-1a.c | 132 +++++++++++++++++++++ .../gcc.target/i386/builtin-memmove-bounded-1b.c | 6 + 2 files changed, 138 insertions(+) diff --git a/gcc/testsuite/gcc.target/i386/builtin-memmove-bounded-1a.c b/gcc/testsuite/gcc.target/i386/builtin-memmove-bounded-1a.c new file mode 100644 index 000000000000..225a32f9d9c0 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/builtin-memmove-bounded-1a.c @@ -0,0 +1,132 @@ +/* { dg-do run } */ +/* { dg-options "-O2 -minline-all-stringops" } */ + +/* Test -O2 -minline-all-stringops on memmove with various bounds. */ + +#include <stdlib.h> + +#define MAX_LENGTH 512 +#define TOTAL (4 * MAX_LENGTH) + +#define MEMMOVE_BOUND(BOUND) \ +__attribute__ ((noipa, noinline)) \ +static char * \ +memmove_##BOUND (char *dest, char *src, size_t len) \ +{ \ + if (len <= BOUND) \ + return __builtin_memmove (dest, src, len); \ + else \ + return dest; \ +} + +#define CHECK_MEMMOVE_BOUND(BOUND, SIZE) \ + { \ + char *dest, *src; \ + unsigned int offset; \ + for (i = 0; i < SIZE; i++) \ + buf[i] = 'a'; \ + for (; i < 2 * SIZE; i++) \ + buf[i] = 'A'; \ + for (; i < 3 * SIZE; i++) \ + buf[i] = 'b'; \ + for (i = 0; i < 3 * SIZE; i++) \ + copy[i] = buf[i]; \ + offset = SIZE - (SIZE) / 2; \ + dest = &buf[0]; \ + src = &buf[offset]; \ + p = memmove_##BOUND (dest, src, SIZE); \ + if (p != dest) \ + abort (); \ + for (i = 0; i < SIZE; i++) \ + if (dest[i] != copy[offset + i]) \ + abort (); \ + for (i = 0; i < 3 * SIZE; i++) \ + buf[i] = copy[i]; \ + dest = &buf[offset]; \ + src = &buf[0]; \ + p = memmove_##BOUND (dest, src, SIZE); \ + if (p != dest) \ + abort (); \ + for (i = 0; i < SIZE; i++) \ + if (dest[i] != copy[i]) \ + abort (); \ + } + +#define CHECK_MEMMOVE(SIZE) \ + CHECK_MEMMOVE_BOUND (SIZE, SIZE) \ + if (SIZE > 1) \ + CHECK_MEMMOVE_BOUND (SIZE, SIZE - 1) \ + if (SIZE > 2) \ + CHECK_MEMMOVE_BOUND (SIZE, SIZE - 2) \ + if (SIZE > 3) \ + CHECK_MEMMOVE_BOUND (SIZE, SIZE - 3) \ + if (SIZE > 4) \ + CHECK_MEMMOVE_BOUND (SIZE, SIZE - 4) \ + if (SIZE > 5) \ + CHECK_MEMMOVE_BOUND (SIZE, SIZE - 5) \ + if (SIZE > 6) \ + CHECK_MEMMOVE_BOUND (SIZE, SIZE - 6) \ + if (SIZE > 7) \ + CHECK_MEMMOVE_BOUND (SIZE, SIZE - 7) + +char buf[TOTAL]; +char copy[TOTAL]; + +MEMMOVE_BOUND (0); +MEMMOVE_BOUND (1); +MEMMOVE_BOUND (2); +MEMMOVE_BOUND (3); +MEMMOVE_BOUND (4); +MEMMOVE_BOUND (5); +MEMMOVE_BOUND (7); +MEMMOVE_BOUND (8); +MEMMOVE_BOUND (9); +MEMMOVE_BOUND (15); +MEMMOVE_BOUND (16); +MEMMOVE_BOUND (17); +MEMMOVE_BOUND (31); +MEMMOVE_BOUND (32); +MEMMOVE_BOUND (33); +MEMMOVE_BOUND (63); +MEMMOVE_BOUND (64); +MEMMOVE_BOUND (65); +MEMMOVE_BOUND (127); +MEMMOVE_BOUND (128); +MEMMOVE_BOUND (129); +MEMMOVE_BOUND (255); +MEMMOVE_BOUND (256); +MEMMOVE_BOUND (257); + +int +main (void) +{ + unsigned int i; + char *p; + + CHECK_MEMMOVE (0); + CHECK_MEMMOVE (1); + CHECK_MEMMOVE (2); + CHECK_MEMMOVE (3); + CHECK_MEMMOVE (4); + CHECK_MEMMOVE (5); + CHECK_MEMMOVE (7); + CHECK_MEMMOVE (8); + CHECK_MEMMOVE (9); + CHECK_MEMMOVE (15); + CHECK_MEMMOVE (16); + CHECK_MEMMOVE (17); + CHECK_MEMMOVE (31); + CHECK_MEMMOVE (32); + CHECK_MEMMOVE (33); + CHECK_MEMMOVE (63); + CHECK_MEMMOVE (64); + CHECK_MEMMOVE (65); + CHECK_MEMMOVE (127); + CHECK_MEMMOVE (128); + CHECK_MEMMOVE (129); + CHECK_MEMMOVE (255); + CHECK_MEMMOVE (256); + CHECK_MEMMOVE (257); + + return 0; +} diff --git a/gcc/testsuite/gcc.target/i386/builtin-memmove-bounded-1b.c b/gcc/testsuite/gcc.target/i386/builtin-memmove-bounded-1b.c new file mode 100644 index 000000000000..8d85a1c9e61e --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/builtin-memmove-bounded-1b.c @@ -0,0 +1,6 @@ +/* { dg-do run } */ +/* { dg-options "-O0 -minline-all-stringops" } */ + +/* Test -O0 -minline-all-stringops on memmove with various bounds. */ + +#include "builtin-memmove-bounded-1a.c"
