[clang] [OpenMP] Don't emit redundant zero-sized mapping nodes for overlapped structs (PR #148947)

[Julian Brown via cfe-commits]

================
@@ -0,0 +1,52 @@
+// RUN: %clang_cc1 -verify -triple x86_64-pc-linux-gnu -fopenmp-targets=amdgcn-amd-amdhsa -fopenmp -emit-llvm %s -o - | FileCheck %s
----------------
jtb20 wrote:

This one though I'm not sure how to do -- the check lines for the new copy-gaps tests are manually written, as it appears were the check lines for the altered test target_map_codegen_35.cpp (which seems to be the only extant test that this patch affects). Would it be better to have auto-generated check lines for the whole generated output for the new tests? That seems like it'd be more brittle, to me.

https://github.com/llvm/llvm-project/pull/148947