From f0b9d0b3ca3e94cecc22da7b95149611be93bcc3 Mon Sep 17 00:00:00 2001 From: Eric Christopher Date: Fri, 18 Jul 2014 00:08:53 +0000 Subject: [PATCH] Reset the Subtarget in the AsmPrinter for each machine function and add explanatory comment about dual initialization. Fix use of the Subtarget to grab the information off of the target machine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213336 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/Mips/MipsAsmPrinter.cpp | 4 +++- lib/Target/Mips/MipsAsmPrinter.h | 13 ++++++++----- 2 files changed, 11 insertions(+), 6 deletions(-) diff --git a/lib/Target/Mips/MipsAsmPrinter.cpp b/lib/Target/Mips/MipsAsmPrinter.cpp index 1fb75a290b9..e6f7e1705e8 100644 --- a/lib/Target/Mips/MipsAsmPrinter.cpp +++ b/lib/Target/Mips/MipsAsmPrinter.cpp @@ -58,6 +58,8 @@ MipsTargetStreamer &MipsAsmPrinter::getTargetStreamer() { } bool MipsAsmPrinter::runOnMachineFunction(MachineFunction &MF) { + Subtarget = &TM.getSubtarget(); + // Initialize TargetLoweringObjectFile. if (Subtarget->allowMixed16_32()) const_cast(getObjFileLowering()) @@ -672,7 +674,7 @@ void MipsAsmPrinter::EmitStartOfAsmFile(Module &M) { bool IsABICalls = true; if (IsABICalls) { getTargetStreamer().emitDirectiveAbiCalls(); - Reloc::Model RM = Subtarget->getRelocationModel(); + Reloc::Model RM = TM.getRelocationModel(); // FIXME: This condition should be a lot more complicated that it is here. // Ideally it should test for properties of the ABI and not the ABI // itself. diff --git a/lib/Target/Mips/MipsAsmPrinter.h b/lib/Target/Mips/MipsAsmPrinter.h index 967aa0b1641..abbd39b571a 100644 --- a/lib/Target/Mips/MipsAsmPrinter.h +++ b/lib/Target/Mips/MipsAsmPrinter.h @@ -89,11 +89,14 @@ public: const MipsFunctionInfo *MipsFI; MipsMCInstLower MCInstLowering; - explicit MipsAsmPrinter(TargetMachine &TM, MCStreamer &Streamer) - : AsmPrinter(TM, Streamer), MCP(nullptr), InConstantPool(false), - MCInstLowering(*this) { - Subtarget = &TM.getSubtarget(); - } + // We initialize the subtarget here and in runOnMachineFunction + // since there are certain target specific flags (ABI) that could + // reside on the TargetMachine, but are on the subtarget currently + // and we need them for the beginning of file output before we've + // seen a single function. + explicit MipsAsmPrinter(TargetMachine &TM, MCStreamer &Streamer) + : AsmPrinter(TM, Streamer), MCP(nullptr), InConstantPool(false), + Subtarget(&TM.getSubtarget()), MCInstLowering(*this) {} const char *getPassName() const override { return "Mips Assembly Printer";