diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/nvptx/nvptx.c | 11 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/nvptx/v2si-cvt.c | 34 |
2 files changed, 22 insertions, 23 deletions
diff --git a/gcc/config/nvptx/nvptx.c b/gcc/config/nvptx/nvptx.c index d2f321f..d8a8fb2 100644 --- a/gcc/config/nvptx/nvptx.c +++ b/gcc/config/nvptx/nvptx.c @@ -6463,6 +6463,14 @@ nvptx_can_change_mode_class (machine_mode, machine_mode, reg_class_t) return false; } +/* Implement TARGET_TRULY_NOOP_TRUNCATION. */ + +static bool +nvptx_truly_noop_truncation (poly_uint64, poly_uint64) +{ + return false; +} + static GTY(()) tree nvptx_previous_fndecl; static void @@ -6612,6 +6620,9 @@ nvptx_set_current_function (tree fndecl) #undef TARGET_CAN_CHANGE_MODE_CLASS #define TARGET_CAN_CHANGE_MODE_CLASS nvptx_can_change_mode_class +#undef TARGET_TRULY_NOOP_TRUNCATION +#define TARGET_TRULY_NOOP_TRUNCATION nvptx_truly_noop_truncation + #undef TARGET_HAVE_SPECULATION_SAFE_VALUE #define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed diff --git a/gcc/testsuite/gcc.target/nvptx/v2si-cvt.c b/gcc/testsuite/gcc.target/nvptx/v2si-cvt.c index 73f86bc..35b9fc3 100644 --- a/gcc/testsuite/gcc.target/nvptx/v2si-cvt.c +++ b/gcc/testsuite/gcc.target/nvptx/v2si-cvt.c @@ -3,37 +3,25 @@ typedef int __v2si __attribute__((__vector_size__(8))); -int __attribute__((unused)) +__v2si __attribute__((unused)) vector_cvt (__v2si arg) { - __v2si val4 = arg; - char *p = (char*)&val4; + unsigned short *p = (unsigned short*)&arg; - if (p[0] != 1) - return 1; - if (p[1] != 2) - return 1; - if (p[2] != 3) - return 1; + volatile unsigned short s = p[0]; - return 0; + return arg; } -int -vector_cvt_2 (__v2si val, __v2si val2) +__v2si __attribute__((unused)) +vector_cvt_2 (__v2si arg) { - char *p = (char*)&val; - char *p2 = (char*)&val2; + unsigned char *p = (unsigned char*)&arg; - if (p[0] != p2[0]) - return 1; - if (p[4] != p2[4]) - return 1; + volatile unsigned char s = p[0]; - return 0; + return arg; } -/* We want to test for 'mov.t' here, but given PR80845 we test for cvt.t.t - instead. - { dg-final { scan-assembler "(?n)cvt\\.u32\\.u32.*\\.x" } } */ -/* { dg-final { scan-assembler "(?n)cvt\\.u16\\.u32.*\\.x" } } */ +/* Todo: We'd like to generate insns with .x operands to access the v2si + operands, but that's currently not done, see PR96403. */ |