Auto merge of #138747 - matthiaskrgr:rollup-68x44rw, r=matthiaskrgr

Rollup of 8 pull requests

Successful merges:

 - #138435 (Add support for postfix yield expressions)
 - #138685 (Use `Option<Ident>` for lowered param names.)
 - #138700 (Suggest `-Whelp` when pass `--print lints` to rustc)
 - #138727 (Do not rely on `type_var_origin` in `OrphanCheckErr::NonLocalInputType`)
 - #138729 (Clean up `FnCtxt::resolve_coroutine_interiors`)
 - #138731 (coverage: Add LLVM plumbing for expansion regions)
 - #138732 (Use `def_path_str` for def id arg in `UnsupportedOpInfo`)
 - #138735 (Remove `llvm` and `llvms` triagebot ping aliases for `icebreakers-llvm` ping group)

r? `@ghost`
`@rustbot` modify labels: rollup

1 files changed, 16 insertions, 0 deletions

diff --git a/compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp
index 0471baa1f9c..b8884486c33 100644
--- a/compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp
+++ b/compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp
@@ -78,6 +78,13 @@ struct LLVMRustCoverageCodeRegion {
 };
 
 // Must match the layout of
+// `rustc_codegen_llvm::coverageinfo::ffi::ExpansionRegion`.
+struct LLVMRustCoverageExpansionRegion {
+  LLVMRustCoverageSpan Span;
+  uint32_t ExpandedFileID;
+};
+
+// Must match the layout of
 // `rustc_codegen_llvm::coverageinfo::ffi::BranchRegion`.
 struct LLVMRustCoverageBranchRegion {
   LLVMRustCoverageSpan Span;
@@ -151,6 +158,8 @@ extern "C" void LLVMRustCoverageWriteFunctionMappingsToBuffer(
     const unsigned *VirtualFileMappingIDs, size_t NumVirtualFileMappingIDs,
     const LLVMRustCounterExpression *RustExpressions, size_t NumExpressions,
     const LLVMRustCoverageCodeRegion *CodeRegions, size_t NumCodeRegions,
+    const LLVMRustCoverageExpansionRegion *ExpansionRegions,
+    size_t NumExpansionRegions,
     const LLVMRustCoverageBranchRegion *BranchRegions, size_t NumBranchRegions,
     const LLVMRustCoverageMCDCBranchRegion *MCDCBranchRegions,
     size_t NumMCDCBranchRegions,
@@ -179,6 +188,13 @@ extern "C" void LLVMRustCoverageWriteFunctionMappingsToBuffer(
         Region.Span.ColumnStart, Region.Span.LineEnd, Region.Span.ColumnEnd));
   }
 
+  // Expansion regions:
+  for (const auto &Region : ArrayRef(ExpansionRegions, NumExpansionRegions)) {
+    MappingRegions.push_back(coverage::CounterMappingRegion::makeExpansion(
+        Region.Span.FileID, Region.ExpandedFileID, Region.Span.LineStart,
+        Region.Span.ColumnStart, Region.Span.LineEnd, Region.Span.ColumnEnd));
+  }
+
   // Branch regions:
   for (const auto &Region : ArrayRef(BranchRegions, NumBranchRegions)) {
     MappingRegions.push_back(coverage::CounterMappingRegion::makeBranchRegion(