[PATCH] D158538: [MS-ABI] Remove comdat attribute for inheriting ctor.

Jennifer Yu via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Mon Aug 28 18:12:58 PDT 2023


jyu2 marked an inline comment as done.
jyu2 added a comment.

Thanks.  @rnk



================
Comment at: clang/test/CodeGenCXX/ms-inheriting-ctor.cpp:41
+
+// CHECK-LABEL: define internal noundef ptr @"??0?$B at _N@@QEAA at AEBVF@@AEBUA@@@Z"(ptr noundef nonnull returned align 1 dereferenceable(1) %this, ptr noundef nonnull align 1 dereferenceable(1) %0, ptr noundef nonnull align 1 dereferenceable(1) %1) unnamed_addr #2 align 2
+// CHECK-LABEL: define linkonce_odr dso_local noundef ptr @"??0?$c at _NUb@@@@QEAA at AEBVF@@AEBUA@@@Z"(ptr noundef nonnull returned align 1 dereferenceable(1) %this, ptr noundef nonnull align 1 dereferenceable(1) %p1, ptr noundef nonnull align 1 dereferenceable(1) %d) unnamed_addr #2 comdat align 2
----------------
rnk wrote:
> jyu2 wrote:
> > rnk wrote:
> > > To make this less fragile, can you come up with a way to use `CHECK-NOT: comdat` since that's the key thing we're testing for here? You will need some subsequent anchor like `entry:` or something else.
> > Thanks.  I changed.
> This isn't quite what I was trying to suggest, I was thinking something more like:
> 
> ```
> // CHECK-LABEL: define internal noundef ptr @"??0?$B at _N@@QEAA at AEBVF@@AEBUA@@@Z"
> // CHECK-NOT: comdat
> // CHECK-SAME: {{\{$}}
> ```
> 
> So, it finds the class with the inheriting constructor, and then checks that the word "comdat" does not appear  anywhere on that line. I haven't tested the CHECK-SAME pattern, it may need some adjustment.
I see.  Thanks!!  I changed.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D158538/new/

https://reviews.llvm.org/D158538



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