================
@@ -3903,7 +3904,14 @@ bool Sema::CheckLoopHintExpr(Expr *E, SourceLocation
Loc) {
if (R.isInvalid())
return true;
- bool ValueIsPositive = ValueAPS.isStrictlyPositive();
+ // GCC allows the value of unroll count to be 0.
+ // https://gcc.gnu.org/onlinedocs/gcc/Loop-Specific-Pragmas.html says
+ // "The values of 0 and 1 block any unrolling of the loop."
+ // The values doesn't have to be strictly positive in '#pragma GCC unroll'
and
+ // '#pragma unroll' cases.
+ bool ValueIsPositive = PragmaNameInfo->isStr("unroll")
----------------
erichkeane wrote:
Thanks! I don't think we should do those changes in THIS patch, but I'd be ok
with a followup patch to do that movement.
https://github.com/llvm/llvm-project/pull/88666
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