diff --git a/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp --- a/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp +++ b/llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp @@ -289,6 +289,14 @@ TTypeEncoding = dwarf::DW_EH_PE_absptr; } break; + case Triple::loongarch32: + case Triple::loongarch64: + LSDAEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; + PersonalityEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | + dwarf::DW_EH_PE_sdata4; + TTypeEncoding = dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | + dwarf::DW_EH_PE_sdata4; + break; default: break; } diff --git a/llvm/test/CodeGen/LoongArch/dwarf-eh.ll b/llvm/test/CodeGen/LoongArch/dwarf-eh.ll new file mode 100644 --- /dev/null +++ b/llvm/test/CodeGen/LoongArch/dwarf-eh.ll @@ -0,0 +1,54 @@ +; RUN: llc --mtriple=loongarch32 --relocation-model=static < %s | FileCheck %s +; RUN: llc --mtriple=loongarch32 --relocation-model=pic < %s | FileCheck %s +; RUN: llc --mtriple=loongarch64 --relocation-model=static < %s | FileCheck %s +; RUN: llc --mtriple=loongarch64 --relocation-model=pic < %s | FileCheck %s + +declare void @throw_exception() + +declare i32 @__gxx_personality_v0(...) + +declare ptr @__cxa_begin_catch(ptr) + +declare void @__cxa_end_catch() + +; CHECK-LABEL: test1: +; CHECK: .cfi_startproc +;; PersonalityEncoding = DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4 +; CHECK-NEXT: .cfi_personality 155, DW.ref.__gxx_personality_v0 +;; LSDAEncoding = DW_EH_PE_pcrel | DW_EH_PE_sdata4 +; CHECK-NEXT: .cfi_lsda 27, .Lexception0 + +define void @test1() personality ptr @__gxx_personality_v0 { +entry: + invoke void @throw_exception() to label %try.cont unwind label %lpad + +lpad: + %0 = landingpad { ptr, i32 } + catch ptr null + %1 = extractvalue { ptr, i32 } %0, 0 + %2 = tail call ptr @__cxa_begin_catch(ptr %1) + tail call void @__cxa_end_catch() + br label %try.cont + +try.cont: + ret void +} + +; CHECK-LABEL: GCC_except_table0: +; CHECK-NEXT: .Lexception0: +; CHECK-NEXT: .byte 255 # @LPStart Encoding = omit +;; TTypeEncoding = DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4 +; CHECK-NEXT: .byte 155 # @TType Encoding = indirect pcrel sdata4 +; CHECK: .Lttbaseref0: +;; CallSiteEncoding = dwarf::DW_EH_PE_uleb128 +; CHECK-NEXT: .byte 1 # Call site Encoding = uleb128 +; CHECK-NEXT: .uleb128 .Lcst_end0-.Lcst_begin0 +; CHECK-NEXT: .Lcst_begin0: +; CHECK-NEXT: .uleb128 .Ltmp0-.Lfunc_begin0 # >> Call Site 1 << +; CHECK-NEXT: .uleb128 .Ltmp1-.Ltmp0 # Call between .Ltmp0 and .Ltmp1 +; CHECK-NEXT: .uleb128 .Ltmp2-.Lfunc_begin0 # jumps to .Ltmp2 +; CHECK-NEXT: .byte 1 # On action: 1 +; CHECK-NEXT: .uleb128 .Ltmp1-.Lfunc_begin0 # >> Call Site 2 << +; CHECK-NEXT: .uleb128 .Lfunc_end0-.Ltmp1 # Call between .Ltmp1 and .Lfunc_end0 +; CHECK-NEXT: .byte 0 # has no landing pad +; CHECK-NEXT: .byte 0 # On action: cleanup