[clang][test] Fix instantiation-depth-default.cpp under ubsan config on Windows (#91021)

wdunicornpro · web-flow · commit b2477765dbf9 · 2024-05-07T16:51:12.000+01:00
Clang test `instantiation-depth-default.cpp` fails on Windows when built with `ubsan` due to extra warnings printed by the compiler: ```console File instantiation-depth-default.cpp Line 11: stack nearly exhausted; compilation time may suffer, and crashes due to stack overflow are likely ``` Originally in #75254 this test was enabled for `asan` as well but later started to cause failures in Linux ASAN buildbots. I have excluded `asan` from this change.
diff --git a/clang/test/SemaTemplate/instantiation-depth-default.cpp b/clang/test/SemaTemplate/instantiation-depth-default.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -verify -ftemplate-backtrace-limit=2 %s
+// RUN: %clang_cc1 -fsyntax-only -verify -ftemplate-backtrace-limit=2 %if {{ubsan}} %{ -Wno-stack-exhausted %} %s
 //
 // FIXME: Disable this test when Clang was built with ASan, because ASan
 // increases our per-frame stack usage enough that this test no longer fits

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-// RUN: %clang_cc1 -fsyntax-only -verify -ftemplate-backtrace-limit=2 %s`
	`1`	`+// RUN: %clang_cc1 -fsyntax-only -verify -ftemplate-backtrace-limit=2 %if {{ubsan}} %{ -Wno-stack-exhausted %} %s`
`2`	`2`	`//`
`3`	`3`	`// FIXME: Disable this test when Clang was built with ASan, because ASan`
`4`	`4`	`// increases our per-frame stack usage enough that this test no longer fits`