llvm-project/clang/test/SemaHLSL/Language/AggregateSplatCasts.hlsl
Sarah Spall 4d2d0afcee
[HLSL] Implement HLSL Aggregate splatting (#118992)
Implement HLSL Aggregate Splat casting that handles splatting for arrays
and structs, and vectors if splatting from a vec1.
Closes #100609 and Closes #100619 
Depends on #118842
2025-02-14 09:25:24 -08:00

28 lines
887 B
HLSL

// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-library -finclude-default-header -fnative-half-type %s -ast-dump | FileCheck %s
// splat from vec1 to vec
// CHECK-LABEL: call1
// CHECK: CStyleCastExpr {{.*}} 'int3':'vector<int, 3>' <HLSLAggregateSplatCast>
// CHECK-NEXT: ImplicitCastExpr {{.*}} 'int' lvalue <FloatingToIntegral> part_of_explicit_cast
// CHECK-NEXT: ImplicitCastExpr {{.*}} 'float' lvalue <HLSLVectorTruncation> part_of_explicit_cast
// CHECK-NEXT: DeclRefExpr {{.*}} 'float1':'vector<float, 1>' lvalue Var {{.*}} 'A' 'float1':'vector<float, 1>'
export void call1() {
float1 A = {1.0};
int3 B = (int3)A;
}
struct S {
int A;
float B;
int C;
float D;
};
// splat from scalar to aggregate
// CHECK-LABEL: call2
// CHECK: CStyleCastExpr {{.*}} 'S' <HLSLAggregateSplatCast>
// CHECK-NEXt: IntegerLiteral {{.*}} 'int' 5
export void call2() {
S s = (S)5;
}