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[RISCV] Add missing required features for Zvfbfmin intrinsics #145646

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Merged
tclin914 merged 1 commit into from
Jun 26, 2025
Merged

[RISCV] Add missing required features for Zvfbfmin intrinsics #145646

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5 changes: 3 additions & 2 deletions clang/include/clang/Basic/riscv_vector.td
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Original file line number Diff line number Diff line change
Expand Up @@ -2013,7 +2013,7 @@ let Log2LMUL = [-3, -2, -1, 0, 1, 2] in {
}

// Zvfbfmin - Vector convert BF16 to FP32
let Log2LMUL = [-2, -1, 0, 1, 2] in
let RequiredFeatures = ["zvfbfmin"], Log2LMUL = [-2, -1, 0, 1, 2] in
def vfwcvtbf16_f_f_v : RVVConvBuiltin<"Fw", "Fwv", "y", "vfwcvtbf16_f">;

let ManualCodegen = [{
Expand Down Expand Up @@ -2121,7 +2121,8 @@ let ManualCodegen = [{
}

// Zvfbfmin - Vector convert FP32 to BF16
let Log2LMUL = [-2, -1, 0, 1, 2],
let RequiredFeatures = ["zvfbfmin"],
Log2LMUL = [-2, -1, 0, 1, 2],
OverloadedName = "vfncvtbf16_f" in
defm : RVVConvBuiltinSet<"vfncvtbf16_f_f_w", "y", [["v", "vFwu"]]>;
}
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7 changes: 7 additions & 0 deletions clang/test/Sema/rvv-required-features-invalid.c
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Original file line number Diff line number Diff line change
Expand Up @@ -48,3 +48,10 @@ void test_zvfbfwma_vfwmaccbf16(vfloat32m4_t vd, __bf16 vs1, vbfloat16m2_t vs2, s
// expected-error@-1 {{RISC-V type '__rvv_bfloat16m2_t' requires the 'zvfbfmin' extension}}
// expected-error@-2 {{builtin requires at least one of the following extensions: zvfbfwma}}
}

void test_zvfbfmin_vfwcvtbf16(vbfloat16m2_t vs2, size_t vl) {
// expected-error@-1 {{RISC-V type 'vbfloat16m2_t' (aka '__rvv_bfloat16m2_t') requires the 'zvfbfmin' extension}}
__riscv_vfwcvtbf16_f_f_v_f32m4(vs2, vl);; // expected-error {{RISC-V type 'vbfloat16m2_t' (aka '__rvv_bfloat16m2_t') requires the 'zvfbfmin' extension}}
// expected-error@-1 {{RISC-V type '__rvv_bfloat16m2_t' requires the 'zvfbfmin' extension}}
// expected-error@-2 {{builtin requires at least one of the following extensions: zvfbfmin}}
}
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