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[PowerPC][Triple] Use elfv2 on freebsd>=13 and linux-musl

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Summary:
Every powerpc64le platform uses elfv2.

For powerpc64, the environments "elfv1" and "elfv2" were added for
FreeBSD ELFv1->ELFv2 migration in D61950.  FreeBSD developers have
decided to use OS versions to select ABI, and no one is relying on the
environments.

Also use elfv2 on powerpc64-linux-musl.

Users can always use -mabi=elfv1 and -mabi=elfv2 to override the default
ABI.

Reviewed By: adalava

Differential Revision: https://reviews.llvm.org/D72352
This commit is contained in:
Fangrui Song 2020-01-07 09:54:10 -08:00
parent 7d3262ad06
commit 3cceefd641
4 changed files with 0 additions and 10 deletions
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2
include/llvm/ADT/Triple.h
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@ -203,8 +203,6 @@ public:
CODE16, CODE16,
EABI, EABI,
EABIHF, EABIHF,
ELFv1,
ELFv2,
Android, Android,
Musl, Musl,
MuslEABI, MuslEABI,

4
lib/Support/Triple.cpp
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@ -228,8 +228,6 @@ StringRef Triple::getEnvironmentTypeName(EnvironmentType Kind) {
case CODE16: return "code16"; case CODE16: return "code16";
case EABI: return "eabi"; case EABI: return "eabi";
case EABIHF: return "eabihf"; case EABIHF: return "eabihf";
case ELFv1: return "elfv1";
case ELFv2: return "elfv2";
case Android: return "android"; case Android: return "android";
case Musl: return "musl"; case Musl: return "musl";
case MuslEABI: return "musleabi"; case MuslEABI: return "musleabi";
@ -524,8 +522,6 @@ static Triple::EnvironmentType parseEnvironment(StringRef EnvironmentName) {
return StringSwitch<Triple::EnvironmentType>(EnvironmentName) return StringSwitch<Triple::EnvironmentType>(EnvironmentName)
.StartsWith("eabihf", Triple::EABIHF) .StartsWith("eabihf", Triple::EABIHF)
.StartsWith("eabi", Triple::EABI) .StartsWith("eabi", Triple::EABI)
.StartsWith("elfv1", Triple::ELFv1)
.StartsWith("elfv2", Triple::ELFv2)
.StartsWith("gnuabin32", Triple::GNUABIN32) .StartsWith("gnuabin32", Triple::GNUABIN32)
.StartsWith("gnuabi64", Triple::GNUABI64) .StartsWith("gnuabi64", Triple::GNUABI64)
.StartsWith("gnueabihf", Triple::GNUEABIHF) .StartsWith("gnueabihf", Triple::GNUEABIHF)

2
lib/Target/PowerPC/PPCTargetMachine.cpp
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@ -215,8 +215,6 @@ static PPCTargetMachine::PPCABI computeTargetABI(const Triple &TT,
case Triple::ppc64le: case Triple::ppc64le:
return PPCTargetMachine::PPC_ABI_ELFv2; return PPCTargetMachine::PPC_ABI_ELFv2;
case Triple::ppc64: case Triple::ppc64:
if (TT.getEnvironment() == llvm::Triple::ELFv2)
return PPCTargetMachine::PPC_ABI_ELFv2;
return PPCTargetMachine::PPC_ABI_ELFv1; return PPCTargetMachine::PPC_ABI_ELFv1;
default: default:
return PPCTargetMachine::PPC_ABI_UNKNOWN; return PPCTargetMachine::PPC_ABI_UNKNOWN;

2
test/CodeGen/PowerPC/ppc64-elf-abi.ll
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@ -8,8 +8,6 @@
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-freebsd < %s | FileCheck %s -check-prefix=CHECK-ELFv1 ; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-freebsd < %s | FileCheck %s -check-prefix=CHECK-ELFv1
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-freebsd -target-abi elfv1 < %s | FileCheck %s -check-prefix=CHECK-ELFv1 ; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-freebsd -target-abi elfv1 < %s | FileCheck %s -check-prefix=CHECK-ELFv1
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-freebsd -target-abi elfv2 < %s | FileCheck %s -check-prefix=CHECK-ELFv2 ; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-freebsd -target-abi elfv2 < %s | FileCheck %s -check-prefix=CHECK-ELFv2
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-freebsd-elfv1 < %s | FileCheck %s -check-prefix=CHECK-ELFv1
; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-freebsd-elfv2 < %s | FileCheck %s -check-prefix=CHECK-ELFv2
; CHECK-ELFv2: .abiversion 2 ; CHECK-ELFv2: .abiversion 2
; CHECK-ELFv1-NOT: .abiversion 2 ; CHECK-ELFv1-NOT: .abiversion 2