diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp index d3b6c78e17c..209741aaaee 100644 --- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp +++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp @@ -31,6 +31,7 @@ #include "llvm/MC/MCInst.h" #include "llvm/MC/MCInstrDesc.h" #include "llvm/MC/MCInstrInfo.h" +#include "llvm/MC/MCSection.h" #include "llvm/MC/MCParser/MCAsmLexer.h" #include "llvm/MC/MCParser/MCAsmParser.h" #include "llvm/MC/MCParser/MCParsedAsmOperand.h" @@ -227,6 +228,7 @@ class ARMAsmParser : public MCTargetAsmParser { bool parseDirectiveRegSave(SMLoc L, bool IsVector); bool parseDirectiveInst(SMLoc L, char Suffix = '\0'); bool parseDirectiveLtorg(SMLoc L); + bool parseDirectiveEven(SMLoc L); StringRef splitMnemonic(StringRef Mnemonic, unsigned &PredicationCode, bool &CarrySetting, unsigned &ProcessorIMod, @@ -7912,6 +7914,8 @@ bool ARMAsmParser::ParseDirective(AsmToken DirectiveID) { return parseDirectiveInst(DirectiveID.getLoc(), 'w'); else if (IDVal == ".ltorg" || IDVal == ".pool") return parseDirectiveLtorg(DirectiveID.getLoc()); + else if (IDVal == ".even") + return parseDirectiveEven(DirectiveID.getLoc()); return true; } @@ -8476,6 +8480,27 @@ bool ARMAsmParser::parseDirectiveLtorg(SMLoc L) { return false; } +bool ARMAsmParser::parseDirectiveEven(SMLoc L) { + const MCSection *Section = getStreamer().getCurrentSection().first; + + if (getLexer().isNot(AsmToken::EndOfStatement)) { + TokError("unexpected token in directive"); + return false; + } + + if (!Section) { + getStreamer().InitToTextSection(); + Section = getStreamer().getCurrentSection().first; + } + + if (Section->UseCodeAlign()) + getStreamer().EmitCodeAlignment(2, 0); + else + getStreamer().EmitValueToAlignment(2, 0, 1, 0); + + return false; +} + /// Force static initialization. extern "C" void LLVMInitializeARMAsmParser() { RegisterMCAsmParser X(TheARMTarget); diff --git a/test/MC/ARM/directive-even.s b/test/MC/ARM/directive-even.s new file mode 100644 index 00000000000..b92c9f95f5d --- /dev/null +++ b/test/MC/ARM/directive-even.s @@ -0,0 +1,70 @@ +@ RUN: llvm-mc -triple armv7-eabi -filetype obj -o - %s | llvm-readobj -s -sd \ +@ RUN: | FileCheck %s + + .syntax unified + + .text + + .even + + .global aligned_function + .type aligned_function,%function +aligned_function: + bkpt + + .space 5 + + .even + + .global unaligned_function + .type unaligned_function,%function +unaligned_function: + bkpt + +@ CHECK: Section { +@ CHECK: Name: .text +@ CHECK: SectionData ( +@ CHECK: 0000: 700020E1 00000000 00007000 20E1 +@ CHECK: ) +@ CHECK: } + + .data + + .space 15 + + .even + + .global classifiable + .type classifiable,%object +classifiable: + .byte 0xf1 + .byte 0x51 + .byte 0xa5 + .byte 0xc1 + .byte 0x00 + .byte 0x00 + .byte 0x1e + .byte 0xab + + .even + + .global declassified + .type declassified,%object +declassified: + .byte 0x51 + .byte 0xa5 + .byte 0xc1 + .byte 0xde + .byte 0x00 + .byte 0x00 + .byte 0xed + .byte 0xf1 + +@ CHECK: Section { +@ CHECK: Name: .data +@ CHECK: SectionData ( +@ CHECK: 0000: 00000000 00000000 00000000 00000000 +@ CHECK: 0010: F151A5C1 00001EAB 51A5C1DE 0000EDF1 +@ CHECK: ) +@ CHECK: } +