================
@@ -194,3 +199,99 @@ char test_comparison_with_extent_symbol(struct incomplete
*p) {
return ((char *)p)[-1]; // no-warning
}
+// WeakLoopAssumption suppression
+///////////////////////////////////////////////////////////////////////
+
+int GlobalArray[100];
+int loop_suppress_after_zero_iterations(unsigned len) {
+ for (unsigned i = 0; i < len; i++)
+ if (GlobalArray[i] > 0)
+ return GlobalArray[i];
+ // Previously this would have produced an overflow warning because splitting
+ // the state on the loop condition introduced an execution path where the
+ // analyzer thinks that len == 0.
+ // There are very many situations where the programmer knows that an argument
----------------
NagyDonat wrote:
I'd like to keep the "very" here -- that's the impression that I get when I
browse through lots of `ArrayBoundV2` reports (without this patch).
https://github.com/llvm/llvm-project/pull/109804
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