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TheRock/compiler/amd-llvm/clang/test/CodeGenHLSL/resources/cbuffer-empty-struct-array.hlsl
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2026-09-02 16:34:47 -07:00

62 lines
1.7 KiB
HLSL

// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-compute -emit-llvm -disable-llvm-passes \
// RUN: -finclude-default-header -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-compute -emit-llvm -disable-llvm-passes \
// RUN: -finclude-default-header -o - -DCHECK2 %s | FileCheck %s -check-prefix=CHECK2
// Regression test for issue llvm/llvm-project#183788
// empty struct
struct A {
};
// struct with a resource which does not contribute to cbuffer layout
struct B {
RWBuffer<float> Buf;
};
struct C : A {
B b;
RWBuffer<float> Bufs[10];
A array[10][2];
};
cbuffer CB {
A a[2];
C c;
#ifdef CHECK2
int i;
float2 v;
int4x4 m;
#endif
}
B b[2][2];
#ifdef CHECK2
int j;
float2 w;
int4x4 n;
#endif
[numthreads(4,4,4)]
void main() {
}
// CHECK-NOT: @CB.cb = global target("dx.CBuffer", %__cblayout_CB)
// CHECK-NOT: @a = external hidden addrspace(2) global
// CHECK-NOT: @b = external hidden addrspace(2) global
// CHECK-NOT: @c = external hidden addrspace(2) global
// CHECK-NOT: @"$Globals.cb" = global target("dx.CBuffer",
// CHECK2: @CB.cb = global target("dx.CBuffer", %__cblayout_CB)
// CHECK-NOT: @a = external hidden addrspace(2) global
// CHECK-NOT: @c = external hidden addrspace(2) global
// CHECK2: @i = external hidden addrspace(2) global i32
// CHECK2: @v = external hidden addrspace(2) global <2 x float>, align 4
// CHECK2: @m = external hidden addrspace(2) global [4 x <4 x i32>], align 4
// CHECK2: @"$Globals.cb" = global target("dx.CBuffer",
// CHECK-NOT: @b = external hidden addrspace(2) global
// CHECK2: @j = external hidden addrspace(2) global i32
// CHECK2: @w = external hidden addrspace(2) global <2 x float>, align 4
// CHECK2: @n = external hidden addrspace(2) global [4 x <4 x i32>], align 4