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[BugFix] Fix FP4 related vectorized cast (#1741)

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This commit is contained in:
chaospointer
2026-01-27 20:54:40 +08:00
committed by GitHub
parent 2f59613a28
commit f5525ead06
3 changed files with 70 additions and 18 deletions
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testing/python/language/test_tilelang_language_vectorized_cast.py
+5 -4
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@@ -86,10 +86,6 @@ def run_vectorized_cast(src_dtype: T.dtype, dst_dtype: T.dtype, check_str: str,
(T.float32, T.float16, "__float22half2_rn", 4),
(T.float16, T.float32, "__half22float2", 2),
(T.float16, T.float32, "__half22float2", 4),
(T.float32, T.float8_e4m3fn, "__nv_cvt_float2_to_fp8x2", 2),
(T.float32, T.float8_e4m3fn, "__nv_cvt_float2_to_fp8x2", 4),
(T.float32, T.float8_e5m2, "__nv_cvt_float2_to_fp8x2", 2),
(T.float32, T.float8_e5m2, "__nv_cvt_float2_to_fp8x2", 4),
(T.float32, T.bfloat16, "__float22bfloat162_rn", 2),
(T.float32, T.bfloat16, "__float22bfloat162_rn", 4),
(T.bfloat16, T.float32, "__bfloat1622float2", 2),
@@ -105,6 +101,11 @@ def test_vectorized_cast(src_dtype, dst_dtype, check_str, lanes):
@pytest.mark.parametrize(
"src_dtype, dst_dtype, check_str, lanes",
[
# FP8 <-> FP32
(T.float32, T.float8_e4m3fn, "__nv_cvt_float2_to_fp8x2", 2),
(T.float32, T.float8_e4m3fn, "__nv_cvt_float2_to_fp8x2", 4),
(T.float32, T.float8_e5m2, "__nv_cvt_float2_to_fp8x2", 2),
(T.float32, T.float8_e5m2, "__nv_cvt_float2_to_fp8x2", 4),
(T.float8_e4m3fn, T.float32, "__tl_cvt_fp8x2_to_float2", 2),
(T.float8_e4m3fn, T.float32, "__tl_cvt_fp8x2_to_float2", 4),
(T.float8_e5m2, T.float32, "__tl_cvt_fp8x2_to_float2", 2),