| /* Test that using a character splat to set up a shift-left |
| for a doubleword vector works correctly after gimple folding. */ |
| |
| /* { dg-do run { target { p8vector_hw } } } */ |
| /* { dg-options "-O2 -mpower8-vector" } */ |
| |
| #include <altivec.h> |
| |
| typedef __vector unsigned long long vui64_t; |
| |
| static inline vui64_t |
| vec_sldi (vui64_t vra, const unsigned int shb) |
| { |
| vui64_t lshift; |
| vui64_t result; |
| |
| /* Note legitimate use of wrong-type splat due to expectation that only |
| lower 6-bits are read. */ |
| lshift = (vui64_t) vec_splat_s8 (shb); |
| |
| /* Vector Shift Left Doublewords based on the lower 6-bits |
| of corresponding element of lshift. */ |
| result = vec_vsld (vra, lshift); |
| |
| return result; |
| } |
| |
| __attribute__ ((noinline)) vui64_t |
| test_sldi_4 (vui64_t a) |
| { |
| return vec_sldi (a, 4); |
| } |
| |
| int |
| main () |
| { |
| vui64_t x = {-256, 1025}; |
| x = test_sldi_4 (x); |
| if (x[0] != -4096 || x[1] != 16400) |
| __builtin_abort (); |
| return 0; |
| } |