[llvm] r184967 - Add a subtarget feature 'v8' to the ARM backend.
Joey Gouly
joey.gouly at arm.com
Wed Jun 26 09:58:26 PDT 2013
Author: joey
Date: Wed Jun 26 11:58:26 2013
New Revision: 184967
URL: http://llvm.org/viewvc/llvm-project?rev=184967&view=rev
Log:
Add a subtarget feature 'v8' to the ARM backend.
This allows for targeting the ARMv8 AArch32 variant.
Modified:
llvm/trunk/lib/Target/ARM/ARM.td
llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp
llvm/trunk/lib/Target/ARM/ARMBuildAttrs.h
llvm/trunk/lib/Target/ARM/ARMInstrInfo.td
llvm/trunk/lib/Target/ARM/ARMSubtarget.cpp
llvm/trunk/lib/Target/ARM/ARMSubtarget.h
llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp
llvm/trunk/test/CodeGen/ARM/2010-09-29-mc-asm-header-test.ll
Modified: llvm/trunk/lib/Target/ARM/ARM.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARM.td?rev=184967&r1=184966&r2=184967&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARM.td (original)
+++ llvm/trunk/lib/Target/ARM/ARM.td Wed Jun 26 11:58:26 2013
@@ -138,6 +138,9 @@ def HasV6T2Ops : SubtargetFeature<"v6t2
def HasV7Ops : SubtargetFeature<"v7", "HasV7Ops", "true",
"Support ARM v7 instructions",
[HasV6T2Ops, FeaturePerfMon]>;
+def HasV8Ops : SubtargetFeature<"v8", "HasV8Ops", "true",
+ "Support ARM v8 instructions",
+ [HasV7Ops]>;
//===----------------------------------------------------------------------===//
// ARM Processors supported.
@@ -291,6 +294,9 @@ def : ProcessorModel<"swift", Swif
FeatureDB, FeatureDSPThumb2,
FeatureHasRAS]>;
+// V8 Processors
+def : ProcNoItin<"cortex-a53", [HasV8Ops]>;
+
//===----------------------------------------------------------------------===//
// Register File Description
//===----------------------------------------------------------------------===//
Modified: llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp?rev=184967&r1=184966&r2=184967&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp Wed Jun 26 11:58:26 2013
@@ -749,7 +749,9 @@ void ARMAsmPrinter::emitAttributes() {
ARMBuildAttrs::Allowed);
AttrEmitter->EmitAttribute(ARMBuildAttrs::THUMB_ISA_use,
ARMBuildAttrs::Allowed);
- } else if (Subtarget->hasV7Ops()) {
+ } else if (Subtarget->hasV8Ops())
+ AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch, ARMBuildAttrs::v8);
+ else if (Subtarget->hasV7Ops()) {
AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch, ARMBuildAttrs::v7);
AttrEmitter->EmitAttribute(ARMBuildAttrs::THUMB_ISA_use,
ARMBuildAttrs::AllowThumb32);
Modified: llvm/trunk/lib/Target/ARM/ARMBuildAttrs.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMBuildAttrs.h?rev=184967&r1=184966&r2=184967&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMBuildAttrs.h (original)
+++ llvm/trunk/lib/Target/ARM/ARMBuildAttrs.h Wed Jun 26 11:58:26 2013
@@ -89,7 +89,8 @@ namespace ARMBuildAttrs {
v7 = 10, // e.g. Cortex A8, Cortex M3
v6_M = 11, // e.g. Cortex M1
v6S_M = 12, // v6_M with the System extensions
- v7E_M = 13 // v7_M with DSP extensions
+ v7E_M = 13, // v7_M with DSP extensions
+ v8 = 14 // v8, AArch32
};
enum CPUArchProfile { // (=7), uleb128
Modified: llvm/trunk/lib/Target/ARM/ARMInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMInstrInfo.td?rev=184967&r1=184966&r2=184967&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMInstrInfo.td (original)
+++ llvm/trunk/lib/Target/ARM/ARMInstrInfo.td Wed Jun 26 11:58:26 2013
@@ -194,6 +194,8 @@ def HasV6T2 : Predicate<"Subtar
def NoV6T2 : Predicate<"!Subtarget->hasV6T2Ops()">;
def HasV7 : Predicate<"Subtarget->hasV7Ops()">,
AssemblerPredicate<"HasV7Ops", "armv7">;
+def HasV8 : Predicate<"Subtarget->hasV8Ops()">,
+ AssemblerPredicate<"HasV8Ops", "armv8">;
def NoVFP : Predicate<"!Subtarget->hasVFP2()">;
def HasVFP2 : Predicate<"Subtarget->hasVFP2()">,
AssemblerPredicate<"FeatureVFP2", "VFP2">;
Modified: llvm/trunk/lib/Target/ARM/ARMSubtarget.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMSubtarget.cpp?rev=184967&r1=184966&r2=184967&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMSubtarget.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMSubtarget.cpp Wed Jun 26 11:58:26 2013
@@ -77,6 +77,7 @@ void ARMSubtarget::initializeEnvironment
HasV6Ops = false;
HasV6T2Ops = false;
HasV7Ops = false;
+ HasV8Ops = false;
HasVFPv2 = false;
HasVFPv3 = false;
HasVFPv4 = false;
Modified: llvm/trunk/lib/Target/ARM/ARMSubtarget.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMSubtarget.h?rev=184967&r1=184966&r2=184967&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMSubtarget.h (original)
+++ llvm/trunk/lib/Target/ARM/ARMSubtarget.h Wed Jun 26 11:58:26 2013
@@ -37,7 +37,8 @@ protected:
/// ARMProcFamily - ARM processor family: Cortex-A8, Cortex-A9, and others.
ARMProcFamilyEnum ARMProcFamily;
- /// HasV4TOps, HasV5TOps, HasV5TEOps, HasV6Ops, HasV6T2Ops, HasV7Ops -
+ /// HasV4TOps, HasV5TOps, HasV5TEOps,
+ /// HasV6Ops, HasV6T2Ops, HasV7Ops, HasV8Ops -
/// Specify whether target support specific ARM ISA variants.
bool HasV4TOps;
bool HasV5TOps;
@@ -45,6 +46,7 @@ protected:
bool HasV6Ops;
bool HasV6T2Ops;
bool HasV7Ops;
+ bool HasV8Ops;
/// HasVFPv2, HasVFPv3, HasVFPv4, HasNEON - Specify what
/// floating point ISAs are supported.
@@ -231,6 +233,7 @@ public:
bool hasV6Ops() const { return HasV6Ops; }
bool hasV6T2Ops() const { return HasV6T2Ops; }
bool hasV7Ops() const { return HasV7Ops; }
+ bool hasV8Ops() const { return HasV8Ops; }
bool isCortexA5() const { return ARMProcFamily == CortexA5; }
bool isCortexA8() const { return ARMProcFamily == CortexA8; }
Modified: llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp?rev=184967&r1=184966&r2=184967&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp (original)
+++ llvm/trunk/lib/Target/ARM/AsmParser/ARMAsmParser.cpp Wed Jun 26 11:58:26 2013
@@ -161,6 +161,9 @@ class ARMAsmParser : public MCTargetAsmP
bool hasV7Ops() const {
return STI.getFeatureBits() & ARM::HasV7Ops;
}
+ bool hasV8Ops() const {
+ return STI.getFeatureBits() & ARM::HasV8Ops;
+ }
bool hasARM() const {
return !(STI.getFeatureBits() & ARM::FeatureNoARM);
}
Modified: llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp?rev=184967&r1=184966&r2=184967&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp (original)
+++ llvm/trunk/lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp Wed Jun 26 11:58:26 2013
@@ -59,7 +59,10 @@ std::string ARM_MC::ParseARMTriple(Strin
std::string ARMArchFeature;
if (Idx) {
unsigned SubVer = TT[Idx];
- if (SubVer >= '7' && SubVer <= '9') {
+ if (SubVer == '8') {
+ // FIXME: Parse v8 features
+ ARMArchFeature = "+v8";
+ } else if (SubVer == '7') {
if (Len >= Idx+2 && TT[Idx+1] == 'm') {
isThumb = true;
if (NoCPU)
Modified: llvm/trunk/test/CodeGen/ARM/2010-09-29-mc-asm-header-test.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/2010-09-29-mc-asm-header-test.ll?rev=184967&r1=184966&r2=184967&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/2010-09-29-mc-asm-header-test.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/2010-09-29-mc-asm-header-test.ll Wed Jun 26 11:58:26 2013
@@ -1,12 +1,21 @@
-; RUN: llc < %s -mtriple=arm-linux-gnueabi | FileCheck %s
+; RUN: llc < %s -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=V7
+; RUN: llc < %s -mtriple=armv8-linux-gnueabi | FileCheck %s --check-prefix=V8
+; RUN: llc < %s -mtriple=thumbv8-linux-gnueabi | FileCheck %s --check-prefix=Vt8
; This tests that MC/asm header conversion is smooth
;
-; CHECK: .syntax unified
-; CHECK: .eabi_attribute 20, 1
-; CHECK: .eabi_attribute 21, 1
-; CHECK: .eabi_attribute 23, 3
-; CHECK: .eabi_attribute 24, 1
-; CHECK: .eabi_attribute 25, 1
+; V7: .syntax unified
+; V7: .eabi_attribute 6, 10
+; V7: .eabi_attribute 20, 1
+; V7: .eabi_attribute 21, 1
+; V7: .eabi_attribute 23, 3
+; V7: .eabi_attribute 24, 1
+; V7: .eabi_attribute 25, 1
+
+; V8: .syntax unified
+; V8: .eabi_attribute 6, 14
+
+; Vt8: .syntax unified
+; Vt8: .eabi_attribute 6, 14
define i32 @f(i64 %z) {
ret i32 0
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