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AMDGPU: MC support for v_cvt_scale_[f16|f32]_bf8 of gfx950. #117381

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Merged
merged 1 commit into from
Nov 25, 2024
Merged

AMDGPU: MC support for v_cvt_scale_[f16|f32]_bf8 of gfx950. #117381

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14 changes: 12 additions & 2 deletions llvm/lib/Target/AMDGPU/AMDGPU.td
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Original file line number Diff line number Diff line change
Expand Up @@ -390,11 +390,17 @@ def FeatureFP8ConversionScaleInsts : SubtargetFeature<"fp8-cvt-scale-insts",
"Has fp8 conversion scale instructions"
>;

def FeatureBF8ConversionScaleInsts : SubtargetFeature<"bf8-cvt-scale-insts",
"HasBF8ConversionScaleInsts",
"true",
"Has bf8 conversion scale instructions"
>;

def FeatureGFX950Insts : SubtargetFeature<"gfx950-insts",
"GFX950Insts",
"true",
"Additional instructions for GFX950+",
[FeaturePermlane16Swap, FeaturePermlane32Swap, FeatureFP8ConversionScaleInsts]
[FeaturePermlane16Swap, FeaturePermlane32Swap, FeatureFP8ConversionScaleInsts, FeatureBF8ConversionScaleInsts]
>;

def FeatureGFX10Insts : SubtargetFeature<"gfx10-insts",
Expand Down Expand Up @@ -1538,7 +1544,8 @@ def FeatureISAVersion9_5_Common : FeatureSet<
FeaturePrngInst,
FeatureBF16ConversionInsts,
FeatureBitOp3Insts,
FeatureFP8ConversionScaleInsts
FeatureFP8ConversionScaleInsts,
FeatureBF8ConversionScaleInsts
])>;

def FeatureISAVersion9_4_0 : FeatureSet<
Expand Down Expand Up @@ -2415,6 +2422,9 @@ def HasPrngInst : Predicate<"Subtarget->hasPrngInst()">,
def HasFP8ConversionScaleInsts : Predicate<"Subtarget->hasFP8ConversionScaleInsts()">,
AssemblerPredicate<(all_of FeatureFP8ConversionScaleInsts)>;

def HasBF8ConversionScaleInsts : Predicate<"Subtarget->hasBF8ConversionScaleInsts()">,
AssemblerPredicate<(all_of FeatureBF8ConversionScaleInsts)>;

def HasGDS : Predicate<"Subtarget->hasGDS()">;

def HasGWS : Predicate<"Subtarget->hasGWS()">;
Expand Down
3 changes: 3 additions & 0 deletions llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,7 @@ class AMDGPUSubtarget {
bool Has16BitInsts = false;
bool HasTrue16BitInsts = false;
bool HasFP8ConversionScaleInsts = false;
bool HasBF8ConversionScaleInsts = false;
bool EnableRealTrue16Insts = false;
bool HasBF16ConversionInsts = false;
bool HasMadMixInsts = false;
Expand Down Expand Up @@ -178,6 +179,8 @@ class AMDGPUSubtarget {

bool hasFP8ConversionScaleInsts() const { return HasFP8ConversionScaleInsts; }

bool hasBF8ConversionScaleInsts() const { return HasBF8ConversionScaleInsts; }

bool hasMadMacF32Insts() const {
return HasMadMacF32Insts || !isGCN();
}
Expand Down
9 changes: 9 additions & 0 deletions llvm/lib/Target/AMDGPU/VOP3Instructions.td
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Original file line number Diff line number Diff line change
Expand Up @@ -892,6 +892,11 @@ let SubtargetPredicate = HasFP8ConversionScaleInsts, mayRaiseFPException = 0 in
defm V_CVT_SCALEF32_F32_FP8 : VOP3Inst<"v_cvt_scalef32_f32_fp8", VOP3_CVT_SCALE_F1632_FP8BF8_Profile<f32>>;
}

let SubtargetPredicate = HasBF8ConversionScaleInsts, mayRaiseFPException = 0 in {
defm V_CVT_SCALEF32_F16_BF8 : VOP3Inst<"v_cvt_scalef32_f16_bf8", VOP3_CVT_SCALE_F1632_FP8BF8_Profile<f16>>;
defm V_CVT_SCALEF32_F32_BF8 : VOP3Inst<"v_cvt_scalef32_f32_bf8", VOP3_CVT_SCALE_F1632_FP8BF8_Profile<f32>>;
}

let SubtargetPredicate = isGFX10Plus in {
let isCommutable = 1, isReMaterializable = 1 in {
defm V_XOR3_B32 : VOP3Inst <"v_xor3_b32", VOP3_Profile<VOP_I32_I32_I32_I32>>;
Expand Down Expand Up @@ -1818,3 +1823,7 @@ let OtherPredicates = [HasFP8ConversionScaleInsts] in {
defm V_CVT_SCALEF32_F16_FP8 : VOP3OpSel_Real_gfx9 <0x24a>;
defm V_CVT_SCALEF32_F32_FP8 : VOP3OpSel_Real_gfx9 <0x23b>;
}
let OtherPredicates = [HasBF8ConversionScaleInsts] in {
defm V_CVT_SCALEF32_F16_BF8 : VOP3OpSel_Real_gfx9 <0x24b>;
defm V_CVT_SCALEF32_F32_BF8 : VOP3OpSel_Real_gfx9 <0x23c>;
}
192 changes: 192 additions & 0 deletions llvm/test/MC/AMDGPU/gfx950_asm_features.s
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Original file line number Diff line number Diff line change
Expand Up @@ -309,3 +309,195 @@ v_cvt_scalef32_f32_fp8 v1, 33, v3 op_sel:[0,1,1]
// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_fp8 v1, 44, v3 op_sel:[1,1,1] ; encoding: [0x01,0x58,0x3b,0xd2,0xac,0x06,0x02,0x00]
v_cvt_scalef32_f32_fp8 v1, 44, v3 op_sel:[1,1,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, v2, v3 ; encoding: [0x01,0x00,0x4b,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, v2, v3

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, v2, v3 op_sel:[1,0,0] ; encoding: [0x01,0x08,0x4b,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, v2, v3 op_sel:[1,0,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, v2, v3 op_sel:[0,1,0] ; encoding: [0x01,0x10,0x4b,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, v2, v3 op_sel:[0,1,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, v2, v3 op_sel:[1,1,0] ; encoding: [0x01,0x18,0x4b,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, v2, v3 op_sel:[1,1,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, v2, v3 op_sel:[0,0,1] ; encoding: [0x01,0x40,0x4b,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, v2, v3 op_sel:[0,0,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, v2, v3 op_sel:[1,0,1] ; encoding: [0x01,0x48,0x4b,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, v2, v3 op_sel:[1,0,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, v2, v3 op_sel:[0,1,1] ; encoding: [0x01,0x50,0x4b,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, v2, v3 op_sel:[0,1,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, v2, v3 op_sel:[1,1,1] ; encoding: [0x01,0x58,0x4b,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, v2, v3 op_sel:[1,1,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, s1, v3 ; encoding: [0x01,0x00,0x4b,0xd2,0x01,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, s1, v3

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, s2, v3 op_sel:[1,0,0] ; encoding: [0x01,0x08,0x4b,0xd2,0x02,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, s2, v3 op_sel:[1,0,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, s3, v3 op_sel:[0,1,0] ; encoding: [0x01,0x10,0x4b,0xd2,0x03,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, s3, v3 op_sel:[0,1,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, s4, v3 op_sel:[1,1,0] ; encoding: [0x01,0x18,0x4b,0xd2,0x04,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, s4, v3 op_sel:[1,1,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, s1, v3 op_sel:[0,0,1] ; encoding: [0x01,0x40,0x4b,0xd2,0x01,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, s1, v3 op_sel:[0,0,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, s2, v3 op_sel:[1,0,1] ; encoding: [0x01,0x48,0x4b,0xd2,0x02,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, s2, v3 op_sel:[1,0,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, s3, v3 op_sel:[0,1,1] ; encoding: [0x01,0x50,0x4b,0xd2,0x03,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, s3, v3 op_sel:[0,1,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, s4, v3 op_sel:[1,1,1] ; encoding: [0x01,0x58,0x4b,0xd2,0x04,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, s4, v3 op_sel:[1,1,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, 11, v3 ; encoding: [0x01,0x00,0x4b,0xd2,0x8b,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, 11, v3

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, 22, v3 op_sel:[1,0,0] ; encoding: [0x01,0x08,0x4b,0xd2,0x96,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, 22, v3 op_sel:[1,0,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, 33, v3 op_sel:[0,1,0] ; encoding: [0x01,0x10,0x4b,0xd2,0xa1,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, 33, v3 op_sel:[0,1,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, 44, v3 op_sel:[1,1,0] ; encoding: [0x01,0x18,0x4b,0xd2,0xac,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, 44, v3 op_sel:[1,1,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, 11, v3 op_sel:[0,1,1] ; encoding: [0x01,0x50,0x4b,0xd2,0x8b,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, 11, v3 op_sel:[0,1,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, 22, v3 op_sel:[1,0,1] ; encoding: [0x01,0x48,0x4b,0xd2,0x96,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, 22, v3 op_sel:[1,0,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, 33, v3 op_sel:[0,1,1] ; encoding: [0x01,0x50,0x4b,0xd2,0xa1,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, 33, v3 op_sel:[0,1,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f16_bf8 v1, 44, v3 op_sel:[1,1,1] ; encoding: [0x01,0x58,0x4b,0xd2,0xac,0x06,0x02,0x00]
v_cvt_scalef32_f16_bf8 v1, 44, v3 op_sel:[1,1,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, v2, v3 ; encoding: [0x01,0x00,0x3c,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, v2, v3

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, v2, v3 op_sel:[1,0,0] ; encoding: [0x01,0x08,0x3c,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, v2, v3 op_sel:[1,0,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, v2, v3 op_sel:[0,1,0] ; encoding: [0x01,0x10,0x3c,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, v2, v3 op_sel:[0,1,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, v2, v3 op_sel:[1,1,0] ; encoding: [0x01,0x18,0x3c,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, v2, v3 op_sel:[1,1,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, v2, v3 op_sel:[0,0,1] ; encoding: [0x01,0x40,0x3c,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, v2, v3 op_sel:[0,0,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, v2, v3 op_sel:[1,0,1] ; encoding: [0x01,0x48,0x3c,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, v2, v3 op_sel:[1,0,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, v2, v3 op_sel:[0,1,1] ; encoding: [0x01,0x50,0x3c,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, v2, v3 op_sel:[0,1,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, v2, v3 op_sel:[1,1,1] ; encoding: [0x01,0x58,0x3c,0xd2,0x02,0x07,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, v2, v3 op_sel:[1,1,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, s1, v3 ; encoding: [0x01,0x00,0x3c,0xd2,0x01,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, s1, v3

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, s2, v3 op_sel:[1,0,0] ; encoding: [0x01,0x08,0x3c,0xd2,0x02,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, s2, v3 op_sel:[1,0,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, s3, v3 op_sel:[0,1,0] ; encoding: [0x01,0x10,0x3c,0xd2,0x03,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, s3, v3 op_sel:[0,1,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, s4, v3 op_sel:[1,1,0] ; encoding: [0x01,0x18,0x3c,0xd2,0x04,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, s4, v3 op_sel:[1,1,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, s1, v3 op_sel:[0,0,1] ; encoding: [0x01,0x40,0x3c,0xd2,0x01,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, s1, v3 op_sel:[0,0,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, s2, v3 op_sel:[1,0,1] ; encoding: [0x01,0x48,0x3c,0xd2,0x02,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, s2, v3 op_sel:[1,0,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, s3, v3 op_sel:[0,1,1] ; encoding: [0x01,0x50,0x3c,0xd2,0x03,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, s3, v3 op_sel:[0,1,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, s4, v3 op_sel:[1,1,1] ; encoding: [0x01,0x58,0x3c,0xd2,0x04,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, s4, v3 op_sel:[1,1,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, 11, v3 ; encoding: [0x01,0x00,0x3c,0xd2,0x8b,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, 11, v3

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, 22, v3 op_sel:[1,0,0] ; encoding: [0x01,0x08,0x3c,0xd2,0x96,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, 22, v3 op_sel:[1,0,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, 33, v3 op_sel:[0,1,0] ; encoding: [0x01,0x10,0x3c,0xd2,0xa1,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, 33, v3 op_sel:[0,1,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, 44, v3 op_sel:[1,1,0] ; encoding: [0x01,0x18,0x3c,0xd2,0xac,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, 44, v3 op_sel:[1,1,0]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, 11, v3 op_sel:[0,0,1] ; encoding: [0x01,0x40,0x3c,0xd2,0x8b,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, 11, v3 op_sel:[0,0,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, 22, v3 op_sel:[1,0,1] ; encoding: [0x01,0x48,0x3c,0xd2,0x96,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, 22, v3 op_sel:[1,0,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, 33, v3 op_sel:[0,1,1] ; encoding: [0x01,0x50,0x3c,0xd2,0xa1,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, 33, v3 op_sel:[0,1,1]

// NOT-GFX950: :[[@LINE+2]]:{{[0-9]+}}: error:
// GFX950: v_cvt_scalef32_f32_bf8 v1, 44, v3 op_sel:[1,1,1] ; encoding: [0x01,0x58,0x3c,0xd2,0xac,0x06,0x02,0x00]
v_cvt_scalef32_f32_bf8 v1, 44, v3 op_sel:[1,1,1]
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