This assert won't catch all mistakes with this helper but it will at
least ensure that the top bits are all zero or all one which should help
catch bugs.
---
src/compiler/nir/nir_builder.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/compiler/nir/nir_builder.h b/src/compiler/nir/nir_builder.h
index 3271a480520..3be630ab3dd 100644
--- a/src/compiler/nir/nir_builder.h
+++ b/src/compiler/nir/nir_builder.h
@@ -330,6 +330,10 @@ nir_imm_intN_t(nir_builder *build, uint64_t x, unsigned
bit_size)
{
nir_const_value v;
+ assert(bit_size == 64 ||
+ (int64_t)x >> bit_size == 0 ||
+ (int64_t)x >> bit_size == -1);
+
memset(&v, 0, sizeof(v));
assert(bit_size <= 64);
v.i64[0] = x & (~0ull >> (64 - bit_size));
--
2.19.1
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