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[CIR] Implement __builtin_ia32_cmpnltps/cmpnltpd #1908

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Merged
bcardosolopes merged 2 commits into from
Sep 25, 2025
Merged

[CIR] Implement __builtin_ia32_cmpnltps/cmpnltpd #1908

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291c4ad
Add support for cmpnltps and test_cmpnltpd
badumbatish Sep 19, 2025
bbbc7e7
Rename OG prefix, remove whiteline space
badumbatish Sep 23, 2025
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3 changes: 2 additions & 1 deletion clang/lib/CIR/CodeGen/CIRGenBuiltinX86.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1740,7 +1740,8 @@ mlir::Value CIRGenFunction::emitX86BuiltinExpr(unsigned BuiltinID,
llvm_unreachable("cmpneqps NYI");
case X86::BI__builtin_ia32_cmpnltps:
case X86::BI__builtin_ia32_cmpnltpd:
llvm_unreachable("cmpnltps NYI");
return getVectorFCmpIR(cir::CmpOpKind::lt, /*shouldInvert=*/true,
/*isSignaling=*/true);
case X86::BI__builtin_ia32_cmpnleps:
case X86::BI__builtin_ia32_cmpnlepd:
return getVectorFCmpIR(cir::CmpOpKind::le, /*shouldInvert=*/true,
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51 changes: 51 additions & 0 deletions clang/test/CIR/CodeGen/builtin-fcmp-sse.c
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Expand Up @@ -53,3 +53,54 @@ __m128d test_cmpnlepd(__m128d A, __m128d B) {
// OG-NEXT: ret <2 x double> [[CAST]]
return __builtin_ia32_cmpnlepd(A, B);
}


__m128 test_cmpnltps(__m128 A, __m128 B) {

// CIR-LABEL: @test_cmpnltps
// CIR: [[CMP:%.*]] = cir.vec.cmp(lt, [[A:%.*]], [[B:%.*]]) : !cir.vector<!cir.float x 4>, !cir.vector<!s32i x 4>
// CIR: [[NOTCMP:%.*]] = cir.unary(not, [[CMP]]) : !cir.vector<!s32i x 4>, !cir.vector<!s32i x 4>
// CIR-NEXT: [[CAST:%.*]] = cir.cast(bitcast, [[NOTCMP:%.*]] : !cir.vector<!s32i x 4>), !cir.vector<!cir.float x 4>
// CIR-NEXT: cir.store [[CAST]], [[ALLOCA:%.*]] : !cir.vector<!cir.float x 4>, !cir.ptr<!cir.vector<!cir.float x 4>>
// CIR-NEXT: [[LD:%.*]] = cir.load [[ALLOCA]] :
// CIR-NEXT: cir.return [[LD]] : !cir.vector<!cir.float x 4>

// LLVM-LABEL: test_cmpnltps
// LLVM: [[CMP:%.*]] = fcmp uge <4 x float> {{.*}}, {{.*}}
// LLVM-NEXT: [[SEXT:%.*]] = sext <4 x i1> [[CMP]] to <4 x i32>
// LLVM-NEXT: [[CAST:%.*]] = bitcast <4 x i32> [[SEXT]] to <4 x float>
// LLVM-NEXT: ret <4 x float> [[CAST]]

// OG-LABEL: test_cmpnltps
// OG: [[CMP:%.*]] = fcmp uge <4 x float> {{.*}}, {{.*}}
// OG-NEXT: [[SEXT:%.*]] = sext <4 x i1> [[CMP]] to <4 x i32>
// OG-NEXT: [[CAST:%.*]] = bitcast <4 x i32> [[SEXT]] to <4 x float>
// OG-NEXT: ret <4 x float> [[CAST]]
return __builtin_ia32_cmpnltps(A, B);
}


__m128d test_cmpnltpd(__m128d A, __m128d B) {

// CIR-LABEL: @test_cmpnltpd
// CIR: [[CMP:%.*]] = cir.vec.cmp(lt, [[A:%.*]], [[B:%.*]]) : !cir.vector<!cir.double x 2>, !cir.vector<!s64i x 2>
// CIR-NEXT: [[NOTCMP:%.*]] = cir.unary(not, [[CMP]]) : !cir.vector<!s64i x 2>, !cir.vector<!s64i x 2>
// CIR-NEXT: [[CAST:%.*]] = cir.cast(bitcast, [[NOTCMP]] : !cir.vector<!s64i x 2>), !cir.vector<!cir.double x 2>
// CIR-NEXT: cir.store [[CAST]], [[ALLOCA:%.*]] : !cir.vector<!cir.double x 2>, !cir.ptr<!cir.vector<!cir.double x 2>>
// CIR-NEXT: [[LD:%.*]] = cir.load [[ALLOCA]] :
// CIR-NEXT: cir.return [[LD]] : !cir.vector<!cir.double x 2>

// LLVM-LABEL: test_cmpnltpd
// LLVM: [[CMP:%.*]] = fcmp uge <2 x double> {{.*}}, {{.*}}
// LLVM-NEXT: [[SEXT:%.*]] = sext <2 x i1> [[CMP]] to <2 x i64>
// LLVM-NEXT: [[CAST:%.*]] = bitcast <2 x i64> [[SEXT]] to <2 x double>
// LLVM-NEXT: ret <2 x double> [[CAST]]

// OG-LABEL: test_cmpnltpd
// OG: [[CMP:%.*]] = fcmp uge <2 x double> {{.*}}, {{.*}}
// OG-NEXT: [[SEXT:%.*]] = sext <2 x i1> [[CMP]] to <2 x i64>
// OG-NEXT: [[CAST:%.*]] = bitcast <2 x i64> [[SEXT]] to <2 x double>
// OG-NEXT: ret <2 x double> [[CAST]]
return __builtin_ia32_cmpnltpd(A, B);
}

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