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Remove implicit fallthrough (#3518)

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This is intended so that downstream projects consuming glslang with FetchContent or similar means can use `-Wimplicit-fallthrough` without getting warning spam.

I've used my best judgement to determine whether the implicit fallthrough was desired, or was simply unreachable code.
`std::unreachable` is unavailable until C++23, but I saw places where `default: assert(0);` was used, so copied that.
There were a few places where some code might actually have been reachable and intended to return a value that represented an error, so someone should double check that kind of thing.
This commit is contained in:
Chris Djali 2024-02-19 22:45:45 +00:00 • committed by GitHub
parent 339552c5c3
commit 8ca24e7cf1
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GPG key ID: B5690EEEBB952194
5 changed files with 30 additions and 1 deletions
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25
glslang/MachineIndependent/reflection.cpp
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@ -707,6 +707,7 @@ public:
switch ((int)sampler.shadow) {
case false: return sampler.arrayed ? GL_SAMPLER_1D_ARRAY : GL_SAMPLER_1D;
case true: return sampler.arrayed ? GL_SAMPLER_1D_ARRAY_SHADOW : GL_SAMPLER_1D_SHADOW;
default: assert(0);
}
case Esd2D:
switch ((int)sampler.ms) {
@ -714,8 +715,10 @@ public:
switch ((int)sampler.shadow) {
case false: return sampler.arrayed ? GL_SAMPLER_2D_ARRAY : GL_SAMPLER_2D;
case true: return sampler.arrayed ? GL_SAMPLER_2D_ARRAY_SHADOW : GL_SAMPLER_2D_SHADOW;
default: assert(0);
}
case true: return sampler.arrayed ? GL_SAMPLER_2D_MULTISAMPLE_ARRAY : GL_SAMPLER_2D_MULTISAMPLE;
default: assert(0);
}
case Esd3D:
return GL_SAMPLER_3D;
@ -723,11 +726,13 @@ public:
switch ((int)sampler.shadow) {
case false: return sampler.arrayed ? GL_SAMPLER_CUBE_MAP_ARRAY : GL_SAMPLER_CUBE;
case true: return sampler.arrayed ? GL_SAMPLER_CUBE_MAP_ARRAY_SHADOW : GL_SAMPLER_CUBE_SHADOW;
default: assert(0);
}
case EsdRect:
return sampler.shadow ? GL_SAMPLER_2D_RECT_SHADOW : GL_SAMPLER_2D_RECT;
case EsdBuffer:
return GL_SAMPLER_BUFFER;
default: assert(0);
}
case EbtFloat16:
switch ((int)sampler.dim) {
@ -735,6 +740,7 @@ public:
switch ((int)sampler.shadow) {
case false: return sampler.arrayed ? GL_FLOAT16_SAMPLER_1D_ARRAY_AMD : GL_FLOAT16_SAMPLER_1D_AMD;
case true: return sampler.arrayed ? GL_FLOAT16_SAMPLER_1D_ARRAY_SHADOW_AMD : GL_FLOAT16_SAMPLER_1D_SHADOW_AMD;
default: assert(0);
}
case Esd2D:
switch ((int)sampler.ms) {
@ -742,8 +748,10 @@ public:
switch ((int)sampler.shadow) {
case false: return sampler.arrayed ? GL_FLOAT16_SAMPLER_2D_ARRAY_AMD : GL_FLOAT16_SAMPLER_2D_AMD;
case true: return sampler.arrayed ? GL_FLOAT16_SAMPLER_2D_ARRAY_SHADOW_AMD : GL_FLOAT16_SAMPLER_2D_SHADOW_AMD;
default: assert(0);
}
case true: return sampler.arrayed ? GL_FLOAT16_SAMPLER_2D_MULTISAMPLE_ARRAY_AMD : GL_FLOAT16_SAMPLER_2D_MULTISAMPLE_AMD;
default: assert(0);
}
case Esd3D:
return GL_FLOAT16_SAMPLER_3D_AMD;
@ -751,11 +759,13 @@ public:
switch ((int)sampler.shadow) {
case false: return sampler.arrayed ? GL_FLOAT16_SAMPLER_CUBE_MAP_ARRAY_AMD : GL_FLOAT16_SAMPLER_CUBE_AMD;
case true: return sampler.arrayed ? GL_FLOAT16_SAMPLER_CUBE_MAP_ARRAY_SHADOW_AMD : GL_FLOAT16_SAMPLER_CUBE_SHADOW_AMD;
default: assert(0);
}
case EsdRect:
return sampler.shadow ? GL_FLOAT16_SAMPLER_2D_RECT_SHADOW_AMD : GL_FLOAT16_SAMPLER_2D_RECT_AMD;
case EsdBuffer:
return GL_FLOAT16_SAMPLER_BUFFER_AMD;
default: assert(0);
}
case EbtInt:
switch ((int)sampler.dim) {
@ -766,6 +776,7 @@ public:
case false: return sampler.arrayed ? GL_INT_SAMPLER_2D_ARRAY : GL_INT_SAMPLER_2D;
case true: return sampler.arrayed ? GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY
: GL_INT_SAMPLER_2D_MULTISAMPLE;
default: assert(0);
}
case Esd3D:
return GL_INT_SAMPLER_3D;
@ -775,6 +786,7 @@ public:
return GL_INT_SAMPLER_2D_RECT;
case EsdBuffer:
return GL_INT_SAMPLER_BUFFER;
default: assert(0);
}
case EbtUint:
switch ((int)sampler.dim) {
@ -785,6 +797,7 @@ public:
case false: return sampler.arrayed ? GL_UNSIGNED_INT_SAMPLER_2D_ARRAY : GL_UNSIGNED_INT_SAMPLER_2D;
case true: return sampler.arrayed ? GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY
: GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE;
default: assert(0);
}
case Esd3D:
return GL_UNSIGNED_INT_SAMPLER_3D;
@ -794,6 +807,7 @@ public:
return GL_UNSIGNED_INT_SAMPLER_2D_RECT;
case EsdBuffer:
return GL_UNSIGNED_INT_SAMPLER_BUFFER;
default: assert(0);
}
default:
return 0;
@ -809,6 +823,7 @@ public:
switch ((int)sampler.ms) {
case false: return sampler.arrayed ? GL_IMAGE_2D_ARRAY : GL_IMAGE_2D;
case true: return sampler.arrayed ? GL_IMAGE_2D_MULTISAMPLE_ARRAY : GL_IMAGE_2D_MULTISAMPLE;
default: assert(0);
}
case Esd3D:
return GL_IMAGE_3D;
@ -818,6 +833,7 @@ public:
return GL_IMAGE_2D_RECT;
case EsdBuffer:
return GL_IMAGE_BUFFER;
default: assert(0);
}
case EbtFloat16:
switch ((int)sampler.dim) {
@ -827,6 +843,7 @@ public:
switch ((int)sampler.ms) {
case false: return sampler.arrayed ? GL_FLOAT16_IMAGE_2D_ARRAY_AMD : GL_FLOAT16_IMAGE_2D_AMD;
case true: return sampler.arrayed ? GL_FLOAT16_IMAGE_2D_MULTISAMPLE_ARRAY_AMD : GL_FLOAT16_IMAGE_2D_MULTISAMPLE_AMD;
default: assert(0);
}
case Esd3D:
return GL_FLOAT16_IMAGE_3D_AMD;
@ -836,6 +853,7 @@ public:
return GL_FLOAT16_IMAGE_2D_RECT_AMD;
case EsdBuffer:
return GL_FLOAT16_IMAGE_BUFFER_AMD;
default: assert(0);
}
case EbtInt:
switch ((int)sampler.dim) {
@ -845,6 +863,7 @@ public:
switch ((int)sampler.ms) {
case false: return sampler.arrayed ? GL_INT_IMAGE_2D_ARRAY : GL_INT_IMAGE_2D;
case true: return sampler.arrayed ? GL_INT_IMAGE_2D_MULTISAMPLE_ARRAY : GL_INT_IMAGE_2D_MULTISAMPLE;
default: assert(0);
}
case Esd3D:
return GL_INT_IMAGE_3D;
@ -854,6 +873,7 @@ public:
return GL_INT_IMAGE_2D_RECT;
case EsdBuffer:
return GL_INT_IMAGE_BUFFER;
default: assert(0);
}
case EbtUint:
switch ((int)sampler.dim) {
@ -864,6 +884,7 @@ public:
case false: return sampler.arrayed ? GL_UNSIGNED_INT_IMAGE_2D_ARRAY : GL_UNSIGNED_INT_IMAGE_2D;
case true: return sampler.arrayed ? GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE_ARRAY
: GL_UNSIGNED_INT_IMAGE_2D_MULTISAMPLE;
default: assert(0);
}
case Esd3D:
return GL_UNSIGNED_INT_IMAGE_3D;
@ -873,6 +894,7 @@ public:
return GL_UNSIGNED_INT_IMAGE_2D_RECT;
case EsdBuffer:
return GL_UNSIGNED_INT_IMAGE_BUFFER;
default: assert(0);
}
default:
return 0;
@ -937,6 +959,7 @@ public:
case 4: return GL_FLOAT_MAT4;
default: return 0;
}
default: assert(0);
}
case EbtDouble:
switch (type.getMatrixCols()) {
@ -961,6 +984,7 @@ public:
case 4: return GL_DOUBLE_MAT4;
default: return 0;
}
default: assert(0);
}
case EbtFloat16:
switch (type.getMatrixCols()) {
@ -985,6 +1009,7 @@ public:
case 4: return GL_FLOAT16_MAT4_AMD;
default: return 0;
}
default: assert(0);
}
default:
return 0;