https://github.com/shader-slang/slang
Tip revision: c5c8cfbb360d9a763f549df48636effde839eacd authored by Sai Praveen Bangaru on 27 September 2023, 00:50:13 UTC
Handle the case where the parent if-else region's after-block is unreachable. (#3241)
Handle the case where the parent if-else region's after-block is unreachable. (#3241)
Tip revision: c5c8cfb
matrix-layout.hlsl
// dxc-matrix-layout.hlsl
// This test tries to ensure that a `row_major` layout default specified on
// the command line makes it through to affect code generation on all targets.
// The test was created because it was found that released versions of dxc
// were ignoring the `#pragma pack_matrix` directive.
// This has a compatibility issue on Windows 10.0.10586 on Dx12 - dxcompiler will crash (can remove form tests with -exclude compatibility-issue)
//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -xslang -matrix-layout-row-major -shaderobj
//TEST(compute,compatibility-issue):COMPARE_COMPUTE_EX:-slang -compute -dx12 -use-dxil -xslang -matrix-layout-row-major -shaderobj
// Not testing on Vulkan because of lack of support
// for integer matrices in GLSL. Slang needs to
// supporting lowering of such matrix before we
// can run this test.
//
//NO_TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -xslang -matrix-layout-row-major
struct S
{
int3x4 a;
int b;
};
//TEST_INPUT:cbuffer(data=[1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24]):name=C0
cbuffer C0
{
S s;
};
//TEST_INPUT:cbuffer(data=[1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24]):name=C1
cbuffer C1
{
// Note: support for the explicit `row_major` and `column_major` modifiers is being
// disabled for now, since our current Vulkan output strategy cannot possibly match the
// semantics of these modifiers in D3D. Once we do a more complete implementation of
// matrix layout (see GitHub issue #695) we can add a directed test for all the
// corners cases of explicit matrix layout.
//
// column_major
int3x4 cc;
int dd;
};
int test(int val)
{
int N = 256;
// Note: using `val %3` here instead of `val %4` in order
// to work around a code generation issue in dxc.
//
int a = s.a[val / 4][val % 3];
int b = s.b;
int c = cc[val / 4][val % 3];
int d = dd;
return ((a*N + b) * N + c) * N + d;
}
//TEST_INPUT:ubuffer(data=[0 0 0 0 0 0 0 0 0 0 0 0], stride=4):out,name=buffer
RWStructuredBuffer<int> buffer;
[numthreads(12, 1, 1)]
void computeMain(int3 dispatchThreadID : SV_DispatchThreadID)
{
int tid = dispatchThreadID.x;
int val = tid;
val = test(val);
buffer[tid] = val;
}