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-rw-r--r--source/slang/slang-ir-validate.cpp6
1 files changed, 5 insertions, 1 deletions
diff --git a/source/slang/slang-ir-validate.cpp b/source/slang/slang-ir-validate.cpp
index 55f3ad227..e7bb7b548 100644
--- a/source/slang/slang-ir-validate.cpp
+++ b/source/slang/slang-ir-validate.cpp
@@ -201,9 +201,13 @@ void validateIRInstOperand(IRValidateContext* context, IRInst* inst, IRUse* oper
// in order.
if (context)
{
+ // There is exception that the use of an inst is defined before the inst,
+ // e.g. generic parameter can be defined before its data type in some cases.
+ // In those cases we allow relaxing the rule.
validate(
context,
- context->seenInsts.contains(operandValue),
+ context->seenInsts.contains(operandValue) ||
+ canRelaxInstOrderRule(operandValue, inst),
inst,
"def must come before use in same block");
}