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[AArch64InstPrinter] Use the feature bits of the subtarget passed to the print

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method.

This enables the instprinter to print a different system register name based on
the feature bits of the per-function subtarget. 

Differential Revision: http://reviews.llvm.org/D8668 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233412 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka
2015-03-27 20:37:20 +00:00
parent f09378397e
commit f2f2ef70a0
2 changed files with 14 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
lib/Target/AArch64/InstPrinter/AArch64InstPrinter.cpp
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@@ -36,10 +36,7 @@ AArch64InstPrinter::AArch64InstPrinter(const MCAsmInfo &MAI,
const MCInstrInfo &MII, const MCInstrInfo &MII,
const MCRegisterInfo &MRI, const MCRegisterInfo &MRI,
const MCSubtargetInfo &STI) const MCSubtargetInfo &STI)
: MCInstPrinter(MAI, MII, MRI) { : MCInstPrinter(MAI, MII, MRI) {}
// Initialize the set of available features.
setAvailableFeatures(STI.getFeatureBits());
}
AArch64AppleInstPrinter::AArch64AppleInstPrinter(const MCAsmInfo &MAI, AArch64AppleInstPrinter::AArch64AppleInstPrinter(const MCAsmInfo &MAI,
const MCInstrInfo &MII, const MCInstrInfo &MII,
@@ -1305,7 +1302,7 @@ void AArch64InstPrinter::printMRSSystemRegister(const MCInst *MI, unsigned OpNo,
unsigned Val = MI->getOperand(OpNo).getImm(); unsigned Val = MI->getOperand(OpNo).getImm();
auto Mapper = AArch64SysReg::MRSMapper(); auto Mapper = AArch64SysReg::MRSMapper();
std::string Name = Mapper.toString(Val, getAvailableFeatures()); std::string Name = Mapper.toString(Val, STI.getFeatureBits());
O << StringRef(Name).upper(); O << StringRef(Name).upper();
} }
@@ -1316,7 +1313,7 @@ void AArch64InstPrinter::printMSRSystemRegister(const MCInst *MI, unsigned OpNo,
unsigned Val = MI->getOperand(OpNo).getImm(); unsigned Val = MI->getOperand(OpNo).getImm();
auto Mapper = AArch64SysReg::MSRMapper(); auto Mapper = AArch64SysReg::MSRMapper();
std::string Name = Mapper.toString(Val, getAvailableFeatures()); std::string Name = Mapper.toString(Val, STI.getFeatureBits());
O << StringRef(Name).upper(); O << StringRef(Name).upper();
} }

11
test/CodeGen/AArch64/print-mrs-system-register.ll Normal file
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@@ -0,0 +1,11 @@
; RUN: llc -mtriple=arm64-apple-darwin %s -o - | FileCheck %s
; CHECK: mrs x0, CPM_IOACC_CTL_EL3
define void @foo1() #0 {
entry:
tail call void asm sideeffect "mrs x0, cpm_ioacc_ctl_el3", ""()
ret void
}
attributes #0 = { "target-cpu"="cyclone" }