Author: Orlando Cazalet-Hyams Date: 2025-05-22T17:07:43+01:00 New Revision: 398a1ac821e01835257206cd3ccf2a71d3a333d6
URL: https://github.com/llvm/llvm-project/commit/398a1ac821e01835257206cd3ccf2a71d3a333d6 DIFF: https://github.com/llvm/llvm-project/commit/398a1ac821e01835257206cd3ccf2a71d3a333d6.diff LOG: [KeyInstr][Clang] Static variable init atom (#134636) This patch is part of a stack that teaches Clang to generate Key Instructions metadata for C and C++. RFC: https://discourse.llvm.org/t/rfc-improving-is-stmt-placement-for-better-interactive-debugging/82668 The feature is only functional in LLVM if LLVM is built with CMake flag LLVM_EXPERIMENTAL_KEY_INSTRUCTIONs. Eventually that flag will be removed. Added: clang/test/DebugInfo/KeyInstructions/init-static.cpp Modified: clang/lib/CodeGen/CGDecl.cpp Removed: ################################################################################ diff --git a/clang/lib/CodeGen/CGDecl.cpp b/clang/lib/CodeGen/CGDecl.cpp index 18135384021e8..f4549ab3033b2 100644 --- a/clang/lib/CodeGen/CGDecl.cpp +++ b/clang/lib/CodeGen/CGDecl.cpp @@ -429,8 +429,10 @@ void CodeGenFunction::EmitStaticVarDecl(const VarDecl &D, bool isCudaSharedVar = getLangOpts().CUDA && getLangOpts().CUDAIsDevice && D.hasAttr<CUDASharedAttr>(); // If this value has an initializer, emit it. - if (D.getInit() && !isCudaSharedVar) + if (D.getInit() && !isCudaSharedVar) { + ApplyAtomGroup Grp(getDebugInfo()); var = AddInitializerToStaticVarDecl(D, var); + } var->setAlignment(alignment.getAsAlign()); diff --git a/clang/test/DebugInfo/KeyInstructions/init-static.cpp b/clang/test/DebugInfo/KeyInstructions/init-static.cpp new file mode 100644 index 0000000000000..745303a3c9d58 --- /dev/null +++ b/clang/test/DebugInfo/KeyInstructions/init-static.cpp @@ -0,0 +1,12 @@ +// RUN: %clang_cc1 -gkey-instructions %s -debug-info-kind=line-tables-only -emit-llvm -o -\ +// RUN: | FileCheck %s --implicit-check-not atomGroup --implicit-check-not atomRank + +void g(int *a) { + // CHECK: %2 = load ptr, ptr %a.addr{{.*}}, !dbg [[G1R2:!.*]] + // CHECK: store ptr %2, ptr @_ZZ1gPiE1b{{.*}}, !dbg [[G1R1:!.*]] + static int &b = *a; +} + +// CHECK: [[G1R2]] = !DILocation({{.*}}, atomGroup: 1, atomRank: 2) +// CHECK: [[G1R1]] = !DILocation({{.*}}, atomGroup: 1, atomRank: 1) + _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
