| /* PR tree-optimization/104992 */ |
| /* { dg-do compile } */ |
| /* { dg-options "-O2 -Wno-psabi -fdump-tree-optimized" } */ |
| |
| #define vector __attribute__((vector_size(4*sizeof(int)))) |
| |
| /* Form from PR. */ |
| __attribute__((noipa)) unsigned foo(unsigned x, unsigned y) |
| { |
| return x / y * y == x; |
| } |
| |
| __attribute__((noipa)) unsigned bar(unsigned x, unsigned y) { |
| return x == x / y * y; |
| } |
| |
| /* Signed test case. */ |
| __attribute__((noipa)) unsigned baz (int x, int y) { |
| return x / y * y == x; |
| } |
| |
| /* Changed order. */ |
| __attribute__((noipa)) unsigned qux (unsigned x, unsigned y) { |
| return y * (x / y) == x; |
| } |
| |
| /* Test for forward propogation. */ |
| __attribute__((noipa)) unsigned corge(unsigned x, unsigned y) { |
| int z = x / y; |
| int q = z * y; |
| return q == x; |
| } |
| |
| /* Test vector case. */ |
| __attribute__((noipa)) vector int thud(vector int x, vector int y) { |
| return x / y * y == x; |
| } |
| |
| /* Complex type should not simplify because mod is different. */ |
| __attribute__((noipa)) int goo(_Complex int x, _Complex int y) |
| { |
| _Complex int z = x / y; |
| _Complex int q = z * y; |
| return q == x; |
| } |
| |
| /* Wrong order. */ |
| __attribute__((noipa)) unsigned fred (unsigned x, unsigned y) { |
| return y * x / y == x; |
| } |
| |
| /* Wrong pattern. */ |
| __attribute__((noipa)) unsigned waldo (unsigned x, unsigned y, unsigned z) { |
| return x / y * z == x; |
| } |
| |
| /* { dg-final { scan-tree-dump-times " % " 9 "optimized" { target { ! vect_int_mod } } } } */ |
| /* { dg-final { scan-tree-dump-times " % " 6 "optimized" { target vect_int_mod } } } */ |
