diff options
Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/pr43385.c')
-rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/pr43385.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/pr43385.c b/gcc/testsuite/gcc.c-torture/execute/pr43385.c new file mode 100644 index 000000000..eeb9096a8 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/pr43385.c @@ -0,0 +1,59 @@ +/* PR c/43385 */ + +extern void abort (void); + +int e; + +__attribute__((noinline)) void +foo (int x, int y) +{ + if (__builtin_expect (x, 0) && y != 0) + e++; +} + +__attribute__((noinline)) int +bar (int x, int y) +{ + if (__builtin_expect (x, 0) && y != 0) + return 1; + else + return 0; +} + +int +main (void) +{ + int z = 0; + asm ("" : "+r" (z)); + foo (z + 2, z + 1); + if (e != 1) + abort (); + foo (z + 2, z); + if (e != 1) + abort (); + foo (z + 1, z + 1); + if (e != 2) + abort (); + foo (z + 1, z); + if (e != 2) + abort (); + foo (z, z + 1); + if (e != 2) + abort (); + foo (z, z); + if (e != 2) + abort (); + if (bar (z + 2, z + 1) != 1) + abort (); + if (bar (z + 2, z) != 0) + abort (); + if (bar (z + 1, z + 1) != 1) + abort (); + if (bar (z + 1, z) != 0) + abort (); + if (bar (z, z + 1) != 0) + abort (); + if (bar (z, z) != 0) + abort (); + return 0; +} |