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[AArch64] Reserve x18 register on Fuchsia
This register is reserved as a platform register on Fuchsia. Differential Revision: https://reviews.llvm.org/D45105 llvm-svn: 328950
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@ -151,8 +151,8 @@ AArch64Subtarget::AArch64Subtarget(const Triple &TT, const std::string &CPU,
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const std::string &FS,
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const std::string &FS,
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const TargetMachine &TM, bool LittleEndian)
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const TargetMachine &TM, bool LittleEndian)
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: AArch64GenSubtargetInfo(TT, CPU, FS),
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: AArch64GenSubtargetInfo(TT, CPU, FS),
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ReserveX18(TT.isOSDarwin() || TT.isOSWindows()), IsLittle(LittleEndian),
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ReserveX18(TT.isOSDarwin() || TT.isOSFuchsia() || TT.isOSWindows()),
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TargetTriple(TT), FrameLowering(),
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IsLittle(LittleEndian), TargetTriple(TT), FrameLowering(),
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InstrInfo(initializeSubtargetDependencies(FS, CPU)), TSInfo(),
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InstrInfo(initializeSubtargetDependencies(FS, CPU)), TSInfo(),
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TLInfo(TM, *this) {
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TLInfo(TM, *this) {
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CallLoweringInfo.reset(new AArch64CallLowering(*getTargetLowering()));
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CallLoweringInfo.reset(new AArch64CallLowering(*getTargetLowering()));
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@ -1,10 +1,8 @@
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; RUN: not llc -mtriple=aarch64-fuchsia -o - %s 2>&1 | FileCheck %s --check-prefix=ERROR
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; RUN: llc -mtriple=aarch64-fuchsia -o - %s
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; RUN: llc -mtriple=aarch64-fuchsia -mattr=+reserve-x18 -o - %s
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define void @set_w18(i32 %x) {
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define void @set_w18(i32 %x) {
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entry:
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entry:
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; FIXME: Include an allocatable-specific error message
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; FIXME: Include an allocatable-specific error message
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; ERROR: Invalid register name "w18".
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tail call void @llvm.write_register.i32(metadata !0, i32 %x)
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tail call void @llvm.write_register.i32(metadata !0, i32 %x)
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ret void
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ret void
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}
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}
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@ -1,10 +1,8 @@
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; RUN: not llc -mtriple=aarch64-fuchsia -o - %s 2>&1 | FileCheck %s --check-prefix=ERROR
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; RUN: llc -mtriple=aarch64-fuchsia -o - %s
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; RUN: llc -mtriple=aarch64-fuchsia -mattr=+reserve-x18 -o - %s
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define void @set_x18(i64 %x) {
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define void @set_x18(i64 %x) {
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entry:
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entry:
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; FIXME: Include an allocatable-specific error message
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; FIXME: Include an allocatable-specific error message
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; ERROR: Invalid register name "x18".
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tail call void @llvm.write_register.i64(metadata !0, i64 %x)
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tail call void @llvm.write_register.i64(metadata !0, i64 %x)
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ret void
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ret void
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}
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}
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@ -1,6 +1,7 @@
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; RUN: llc -mtriple=arm64-apple-ios -mattr=+reserve-x18 -o - %s | FileCheck %s --check-prefix=CHECK-RESERVE-X18
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; RUN: llc -mtriple=arm64-apple-ios -mattr=+reserve-x18 -o - %s | FileCheck %s --check-prefix=CHECK-RESERVE-X18
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; RUN: llc -mtriple=arm64-freebsd-gnu -mattr=+reserve-x18 -o - %s | FileCheck %s --check-prefix=CHECK-RESERVE-X18
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; RUN: llc -mtriple=arm64-freebsd-gnu -mattr=+reserve-x18 -o - %s | FileCheck %s --check-prefix=CHECK-RESERVE-X18
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; RUN: llc -mtriple=arm64-linux-gnu -o - %s | FileCheck %s
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; RUN: llc -mtriple=arm64-linux-gnu -o - %s | FileCheck %s
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; RUN: llc -mtriple=aarch64-fuchsia -o - %s | FileCheck %s --check-prefix=CHECK-RESERVE-X18
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; RUN: llc -mtriple=aarch64-windows -o - %s | FileCheck %s --check-prefix=CHECK-RESERVE-X18
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; RUN: llc -mtriple=aarch64-windows -o - %s | FileCheck %s --check-prefix=CHECK-RESERVE-X18
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; x18 is reserved as a platform register on Darwin but not on other
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; x18 is reserved as a platform register on Darwin but not on other
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