nir: fix const-cast warning on MSVC
We're casting pointers to const memory to const pointers. MSVC complains
about this with the following warning:
warning C4090: 'initializing': different 'const' qualifiers
In this case, we can easily use both constnesses, because all we do is
read here. So let's avoid the warning by adding another const-keyword.
Fixes: 193765e26ba ("nir/lower_goto_if: Sort blocks in select_fork")
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6582>
diff --git a/src/compiler/nir/nir_lower_goto_ifs.c b/src/compiler/nir/nir_lower_goto_ifs.c
index de8c33a..44eaf72 100644
--- a/src/compiler/nir/nir_lower_goto_ifs.c
+++ b/src/compiler/nir/nir_lower_goto_ifs.c
@@ -85,8 +85,8 @@
static int
nir_block_ptr_cmp(const void *_a, const void *_b)
{
- nir_block *const *a = _a;
- nir_block *const *b = _b;
+ const nir_block *const *a = _a;
+ const nir_block *const *b = _b;
return (int)(*a)->index - (int)(*b)->index;
}