Index: include/llvm/MC/MCObjectFileInfo.h =================================================================== --- include/llvm/MC/MCObjectFileInfo.h +++ include/llvm/MC/MCObjectFileInfo.h @@ -380,6 +380,8 @@ /// void InitEHFrameSection(); + virtual unsigned SelectMipsTTypeEncoding() const; + public: const Triple &getTargetTriple() const { return TT; } }; Index: lib/MC/MCObjectFileInfo.cpp =================================================================== --- lib/MC/MCObjectFileInfo.cpp +++ lib/MC/MCObjectFileInfo.cpp @@ -324,10 +324,13 @@ case Triple::mipsel: case Triple::mips64: case Triple::mips64el: - // MIPS uses indirect pointer to refer personality functions, so that the - // eh_frame section can be read-only. DW.ref.personality will be generated - // for relocation. + // MIPS uses indirect pointer to refer personality functions and types, so + // that the eh_frame section can be read-only. DW.ref.personality will be + // generated for relocation. PersonalityEncoding = dwarf::DW_EH_PE_indirect; + TTypeEncoding = SelectMipsTTypeEncoding(); + // We don't support PC-relative LSDA references in GAS so we use the default + // DW_EH_PE_absptr for those. break; case Triple::ppc64: case Triple::ppc64le: @@ -793,3 +796,11 @@ COFF::IMAGE_SCN_MEM_WRITE, SectionKind::getDataRel()); } + +unsigned MCObjectFileInfo::SelectMipsTTypeEncoding() const { + // FIXME: The N64 ABI ought to use DW_EH_PE_sdata8 but we can't + // identify N64 from just a triple. We currently fix this by + // overriding this function in MipsTargetObjectFile. + return dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | + dwarf::DW_EH_PE_sdata4; +} Index: lib/Target/Mips/MipsTargetObjectFile.h =================================================================== --- lib/Target/Mips/MipsTargetObjectFile.h +++ lib/Target/Mips/MipsTargetObjectFile.h @@ -41,6 +41,8 @@ const MCSection *getSectionForConstant(SectionKind Kind, const Constant *C) const override; + + unsigned SelectMipsTTypeEncoding() const override; }; } // end namespace llvm Index: lib/Target/Mips/MipsTargetObjectFile.cpp =================================================================== --- lib/Target/Mips/MipsTargetObjectFile.cpp +++ lib/Target/Mips/MipsTargetObjectFile.cpp @@ -37,6 +37,7 @@ cl::init(true)); void MipsTargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &TM){ + this->TM = &static_cast(TM); TargetLoweringObjectFileELF::Initialize(Ctx, TM); InitializeELF(TM.Options.UseInitArray); @@ -45,7 +46,6 @@ SmallBSSSection = getContext().getELFSection(".sbss", ELF::SHT_NOBITS, ELF::SHF_WRITE | ELF::SHF_ALLOC); - this->TM = &static_cast(TM); } // A address must be loaded from a small section if its size is less than the @@ -144,3 +144,9 @@ // Otherwise, we work the same as ELF. return TargetLoweringObjectFileELF::getSectionForConstant(Kind, C); } + +unsigned MipsTargetObjectFile::SelectMipsTTypeEncoding() const { + return dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel | + (TM->getABI().ArePtrs64bit() ? dwarf::DW_EH_PE_sdata8 + : dwarf::DW_EH_PE_sdata4); +} Index: test/CodeGen/Mips/ehframe-indirect.ll =================================================================== --- test/CodeGen/Mips/ehframe-indirect.ll +++ test/CodeGen/Mips/ehframe-indirect.ll @@ -1,9 +1,11 @@ -; RUN: llc -mtriple=mipsel-linux-gnu < %s | FileCheck -check-prefix=ALL -check-prefix=O32 %s -; RUN: llc -mtriple=mipsel-linux-android < %s | FileCheck -check-prefix=ALL -check-prefix=O32 %s -; RUN: llc -mtriple=mips64el-linux-gnu -target-abi=n32 < %s | FileCheck -check-prefix=ALL -check-prefix=N32 %s -; RUN: llc -mtriple=mips64el-linux-android -target-abi=n32 < %s | FileCheck -check-prefix=ALL -check-prefix=N32 %s -; RUN: llc -mtriple=mips64el-linux-gnu < %s | FileCheck -check-prefix=ALL -check-prefix=N64 %s -; RUN: llc -mtriple=mips64el-linux-android < %s | FileCheck -check-prefix=ALL -check-prefix=N64 %s +; RUN: llc -mtriple=mipsel-linux-gnu < %s -asm-verbose | FileCheck -check-prefix=ALL -check-prefix=O32 %s +; RUN: llc -mtriple=mipsel-linux-android < %s -asm-verbose | FileCheck -check-prefix=ALL -check-prefix=O32 %s +; RUN: llc -mtriple=mips64el-linux-gnu -target-abi=n32 < %s -asm-verbose | FileCheck -check-prefix=ALL -check-prefix=N32 %s +; RUN: llc -mtriple=mips64el-linux-android -target-abi=n32 < %s -asm-verbose | FileCheck -check-prefix=ALL -check-prefix=N32 %s +; RUN: llc -mtriple=mips64el-linux-gnu < %s -asm-verbose | FileCheck -check-prefix=ALL -check-prefix=N64 %s +; RUN: llc -mtriple=mips64el-linux-android < %s -asm-verbose | FileCheck -check-prefix=ALL -check-prefix=N64 %s + +@_ZTISt9exception = external constant i8* define i32 @main() { ; ALL: .cfi_startproc @@ -16,7 +18,9 @@ lpad: %0 = landingpad { i8*, i32 } personality i8* - bitcast (i32 (...)* @__gxx_personality_v0 to i8*) catch i8* null + bitcast (i32 (...)* @__gxx_personality_v0 to i8*) + catch i8* null + catch i8* bitcast (i8** @_ZTISt9exception to i8*) ret i32 0 cont: @@ -28,6 +32,18 @@ declare void @foo() +; ALL: GCC_except_table{{[0-9]+}}: +; O32: .byte 155 # @TType Encoding = indirect pcrel sdata4 +; N32: .byte 155 # @TType Encoding = indirect pcrel sdata4 +; N64: .byte 156 # @TType Encoding = indirect pcrel sdata8 +; ALL: $[[PC_LABEL:tmp[0-9]+]]: +; O32: .4byte ($_ZTISt9exception.DW.stub)-($[[PC_LABEL]]) +; N32: .4byte ($_ZTISt9exception.DW.stub)-($[[PC_LABEL]]) +; N64: .8byte ($_ZTISt9exception.DW.stub)-($[[PC_LABEL]]) +; ALL: $_ZTISt9exception.DW.stub: +; O32: .4byte _ZTISt9exception +; N32: .4byte _ZTISt9exception +; N64: .8byte _ZTISt9exception ; ALL: .hidden DW.ref.__gxx_personality_v0 ; ALL: .weak DW.ref.__gxx_personality_v0 ; ALL: .section .data.DW.ref.__gxx_personality_v0,"aGw",@progbits,DW.ref.__gxx_personality_v0,comdat