Fix MSan test use-after-dtor.cpp under new pass manager

[aeubanks]

Summary

The new pass manager symbolizes the location as ~Simple instead of Simple::~Simple.

[aeubanks]

rnk@ mentioned to me something about inlining and symbolization under the new pass manager, any links to that so I can put it in the description?

[rnk]

In D79594#2025791, @aeubanks wrote:

rnk@ mentioned to me something about inlining and symbolization under the new pass manager, any links to that so I can put it in the description?

BTW I did go digging through the test case to find prior discussions of this issue, but didn't find anything concrete. You can try experimenting by compiling small toy programs locally with -fsanitize=address -gline-tables-only, and controlling the inlining with always_inline / noinline to nail down exactly what the behavior is.

I thought there was a past effort to emit linkage names on all DW_TAG_subprograms emitted under gmlt to improve stack traces in these situations. Maybe @probinson remembers this discussion.

compiler-rt/test/msan/use-after-dtor.cpp

int main() {
   fprintf(stderr, "\n");  // Need output to parse for CHECK-UAD-OFF case
   return s->x_;
 
   // CHECK-UAD: WARNING: MemorySanitizer: use-of-uninitialized-value
   // CHECK-UAD: {{#0 0x.* in main.*use-after-dtor.cpp:}}[[@LINE-3]]
 
   // CHECK-ORIGINS: Memory was marked as uninitialized
   // CHECK-ORIGINS: {{#0 0x.* in __sanitizer_dtor_callback}}
-  // CHECK-ORIGINS: {{#1 0x.* in Simple::~Simple}}
+  // CHECK-ORIGINS: {{#1 0x.* in .*~Simple}}
 
   // CHECK-UAD: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*main}}
   // CHECK-UAD-OFF-NOT: SUMMARY: MemorySanitizer: use-of-uninitialized-value
 }