Upgraded llvm to 10.0.1

patches/llvm-void/clang-001-fix-unwind-chain-inclusion.patch

@@ -0,0 +1,44 @@
+From 352974169f0d2b5da3d5321f588f5e3b5941330e Mon Sep 17 00:00:00 2001
+From: Andrea Brancaleoni <miwaxe@gmail.com>
+Date: Tue, 8 Sep 2015 22:14:57 +0200
+Subject: [PATCH 2/7] fix unwind chain inclusion
+
+---
+ lib/Headers/unwind.h | 9 +++++----
+ 1 file changed, 5 insertions(+), 4 deletions(-)
+
+diff --git a/lib/Headers/unwind.h b/lib/Headers/unwind.h
+index 303d792..44e10cc 100644
+--- a/lib/Headers/unwind.h
++++ b/lib/Headers/unwind.h
+@@ -9,9 +9,6 @@
+ 
+ /* See "Data Definitions for libgcc_s" in the Linux Standard Base.*/
+ 
+-#ifndef __CLANG_UNWIND_H
+-#define __CLANG_UNWIND_H
+-
+ #if defined(__APPLE__) && __has_include_next(<unwind.h>)
+ /* Darwin (from 11.x on) provide an unwind.h. If that's available,
+  * use it. libunwind wraps some of its definitions in #ifdef _GNU_SOURCE,
+@@ -39,6 +36,9 @@
+ # endif
+ #else
+ 
++#ifndef __CLANG_UNWIND_H
++#define __CLANG_UNWIND_H
++
+ #include <stdint.h>
+ 
+ #ifdef __cplusplus
+@@ -322,6 +322,7 @@ _Unwind_Ptr _Unwind_GetTextRelBase(struct _Unwind_Context *);
+ }
+ #endif
+ 
++#endif /* __CLANG_UNWIND_H */
++
+ #endif
+ 
+-#endif /* __CLANG_UNWIND_H */
+-- 
+2.5.1

patches/llvm-void/clang-002-add-musl-triples.patch

@@ -0,0 +1,91 @@
+--- a/lib/Driver/ToolChains/Gnu.cpp
++++ b/lib/Driver/ToolChains/Gnu.cpp
+@@ -1938,7 +1938,8 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
+   static const char *const ARMHFTriples[] = {"arm-linux-gnueabihf",
+                                              "armv7hl-redhat-linux-gnueabi",
+                                              "armv6hl-suse-linux-gnueabi",
+-                                             "armv7hl-suse-linux-gnueabi"};
++                                             "armv7hl-suse-linux-gnueabi",
++                                             "armv7l-linux-gnueabihf"};
+   static const char *const ARMebLibDirs[] = {"/lib"};
+   static const char *const ARMebTriples[] = {"armeb-linux-gnueabi",
+                                              "armeb-linux-androideabi"};
+@@ -2077,6 +2078,78 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
+     return;
+   }
+ 
++  if (TargetTriple.isMusl()) {
++    static const char *const AArch64MuslTriples[] = {"aarch64-linux-musl"};
++    static const char *const ARMHFMuslTriples[] = {
++        "arm-linux-musleabihf", "armv7l-linux-musleabihf"
++    };
++    static const char *const ARMMuslTriples[] = {"arm-linux-musleabi"};
++    static const char *const X86_64MuslTriples[] = {"x86_64-linux-musl"};
++    static const char *const X86MuslTriples[] = {"i686-linux-musl"};
++    static const char *const MIPSMuslTriples[] = {
++        "mips-linux-musl", "mipsel-linux-musl",
++        "mipsel-linux-muslhf", "mips-linux-muslhf"
++    };
++    static const char *const PPCMuslTriples[] = {"powerpc-linux-musl"};
++    static const char *const PPC64MuslTriples[] = {"powerpc64-linux-musl"};
++    static const char *const PPC64LEMuslTriples[] = {"powerpc64le-linux-musl"};
++
++    switch (TargetTriple.getArch()) {
++    case llvm::Triple::aarch64:
++      LibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
++      TripleAliases.append(begin(AArch64MuslTriples), end(AArch64MuslTriples));
++      BiarchLibDirs.append(begin(AArch64LibDirs), end(AArch64LibDirs));
++      BiarchTripleAliases.append(begin(AArch64MuslTriples), end(AArch64MuslTriples));
++      break;
++    case llvm::Triple::arm:
++      LibDirs.append(begin(ARMLibDirs), end(ARMLibDirs));
++      if (TargetTriple.getEnvironment() == llvm::Triple::MuslEABIHF) {
++        TripleAliases.append(begin(ARMHFMuslTriples), end(ARMHFMuslTriples));
++      } else {
++        TripleAliases.append(begin(ARMMuslTriples), end(ARMMuslTriples));
++      }
++      break;
++    case llvm::Triple::x86_64:
++      LibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
++      TripleAliases.append(begin(X86_64MuslTriples), end(X86_64MuslTriples));
++      BiarchLibDirs.append(begin(X86LibDirs), end(X86LibDirs));
++      BiarchTripleAliases.append(begin(X86MuslTriples), end(X86MuslTriples));
++      break;
++    case llvm::Triple::x86:
++      LibDirs.append(begin(X86LibDirs), end(X86LibDirs));
++      TripleAliases.append(begin(X86MuslTriples), end(X86MuslTriples));
++      BiarchLibDirs.append(begin(X86_64LibDirs), end(X86_64LibDirs));
++      BiarchTripleAliases.append(begin(X86_64MuslTriples), end(X86_64MuslTriples));
++      break;
++    case llvm::Triple::mips:
++      LibDirs.append(begin(MIPSLibDirs), end(MIPSLibDirs));
++      TripleAliases.append(begin(MIPSMuslTriples), end(MIPSMuslTriples));
++      break;
++    case llvm::Triple::ppc:
++      LibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
++      TripleAliases.append(begin(PPCMuslTriples), end(PPCMuslTriples));
++      BiarchLibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
++      BiarchTripleAliases.append(begin(PPC64MuslTriples), end(PPC64MuslTriples));
++      break;
++    case llvm::Triple::ppc64:
++      LibDirs.append(begin(PPC64LibDirs), end(PPC64LibDirs));
++      TripleAliases.append(begin(PPC64MuslTriples), end(PPC64MuslTriples));
++      BiarchLibDirs.append(begin(PPCLibDirs), end(PPCLibDirs));
++      BiarchTripleAliases.append(begin(PPCMuslTriples), end(PPCMuslTriples));
++      break;
++    case llvm::Triple::ppc64le:
++      LibDirs.append(begin(PPC64LELibDirs), end(PPC64LELibDirs));
++      TripleAliases.append(begin(PPC64LEMuslTriples), end(PPC64LEMuslTriples));
++      break;
++    default:
++      break;
++    }
++    TripleAliases.push_back(TargetTriple.str());
++    if (TargetTriple.str() != BiarchTriple.str())
++      BiarchTripleAliases.push_back(BiarchTriple.str());
++    return;
++  }
++
+   // Android targets should not use GNU/Linux tools or libraries.
+   if (TargetTriple.isAndroid()) {
+     static const char *const AArch64AndroidTriples[] = {

patches/llvm-void/clang-003-ppc64-dynamic-linker-path.patch

@@ -0,0 +1,18 @@
+--- a/lib/Driver/ToolChains/Linux.cpp
++++ b/lib/Driver/ToolChains/Linux.cpp
+@@ -593,12 +593,12 @@ std::string Linux::getDynamicLinker(const ArgList &Args) const {
+     Loader = "ld.so.1";
+     break;
+   case llvm::Triple::ppc64:
+-    LibDir = "lib64";
++    LibDir = "lib";
+     Loader =
+-        (tools::ppc::hasPPCAbiArg(Args, "elfv2")) ? "ld64.so.2" : "ld64.so.1";
++        (tools::ppc::hasPPCAbiArg(Args, "elfv1")) ? "ld64.so.1" : "ld64.so.2";
+     break;
+   case llvm::Triple::ppc64le:
+-    LibDir = "lib64";
++    LibDir = "lib";
+     Loader =
+         (tools::ppc::hasPPCAbiArg(Args, "elfv1")) ? "ld64.so.1" : "ld64.so.2";
+     break;

patches/llvm-void/clang-004-ppc64-musl-elfv2.patch

@@ -0,0 +1,30 @@
+--- a/lib/Basic/Targets/PPC.h
++++ b/lib/Basic/Targets/PPC.h
+@@ -386,11 +386,10 @@ public:
+ 
+     if ((Triple.getArch() == llvm::Triple::ppc64le)) {
+       resetDataLayout("e-m:e-i64:64-n32:64");
+-      ABI = "elfv2";
+     } else {
+       resetDataLayout("E-m:e-i64:64-n32:64");
+-      ABI = "elfv1";
+     }
++    ABI = "elfv2";
+ 
+     if (Triple.getOS() == llvm::Triple::AIX)
+       SuitableAlign = 64;
+--- a/lib/Driver/ToolChains/Clang.cpp
++++ b/lib/Driver/ToolChains/Clang.cpp
+@@ -1918,11 +1918,7 @@ void Clang::AddPPCTargetArgs(const ArgList &Args,
+         ABIName = "elfv1-qpx";
+         break;
+       }
+-
+-      if (T.isMusl() || (T.isOSFreeBSD() && T.getOSMajorVersion() >= 13))
+-        ABIName = "elfv2";
+-      else
+-        ABIName = "elfv1";
++      ABIName = "elfv2";
+       break;
+     }
+     case llvm::Triple::ppc64le:

patches/llvm-void/compiler-rt-armv5.patch

@@ -0,0 +1,11 @@
+--- compiler-rt-10.0.0.src/lib/builtins/CMakeLists.txt
++++ compiler-rt-10.0.0.src/lib/builtins/CMakeLists.txt
+@@ -428,8 +428,6 @@
+ )
+ set(arm_Thumb1_SOURCES
+   ${arm_Thumb1_JT_SOURCES}
+-  ${arm_Thumb1_SjLj_EH_SOURCES}
+-  ${arm_Thumb1_VFPv2_SOURCES}
+   ${arm_Thumb1_icache_SOURCES}
+ )
+ 

patches/llvm-void/llvm-001-musl.patch

@@ -0,0 +1,58 @@
+From faca3fbd15d0c3108493c3c54cd93138e049ac43 Mon Sep 17 00:00:00 2001
+From: Andrea Brancaleoni <miwaxe@gmail.com>
+Date: Tue, 8 Sep 2015 22:03:02 +0200
+Subject: [PATCH 3/3] musl
+
+---
+ include/llvm/Analysis/TargetLibraryInfo.h | 9 +++++++++
+ lib/Support/DynamicLibrary.cpp            | 2 +-
+ lib/Support/Unix/Signals.inc              | 6 +++---
+ utils/unittest/googletest/src/gtest.cc    | 1 +
+ 5 files changed, 17 insertions(+), 6 deletions(-)
+
+diff --git a/include/llvm/Analysis/TargetLibraryInfo.h b/include/llvm/Analysis/TargetLibraryInfo.h
+index e0a1ee3..465b65a 100644
+--- a/include/llvm/Analysis/TargetLibraryInfo.h
++++ b/include/llvm/Analysis/TargetLibraryInfo.h
+@@ -18,6 +18,15 @@
+ #include "llvm/IR/PassManager.h"
+ #include "llvm/Pass.h"
+ 
++#undef fopen64
++#undef fseeko64
++#undef fstat64
++#undef fstatvfs64
++#undef ftello64
++#undef lstat64
++#undef stat64
++#undef tmpfile64
++
+ namespace llvm {
+ template <typename T> class ArrayRef;
+ 
+diff --git a/utils/unittest/googletest/src/gtest.cc b/utils/unittest/googletest/src/gtest.cc
+index 5780764..1d548c1 100644
+--- a/utils/unittest/googletest/src/gtest.cc
++++ b/utils/unittest/googletest/src/gtest.cc
+@@ -128,6 +128,7 @@
+ 
+ #if GTEST_CAN_STREAM_RESULTS_
+ # include <arpa/inet.h>  // NOLINT
++# include <sys/socket.h>  // NOLINT
+ # include <netdb.h>  // NOLINT
+ # include <sys/socket.h>  // NOLINT
+ # include <sys/types.h>  // NOLINT
+-- 
+2.5.1
+
+--- a/lib/Support/Unix/DynamicLibrary.inc
++++ b/lib/Support/Unix/DynamicLibrary.inc
+@@ -102,7 +102,7 @@ static void *DoSearch(const char* SymbolName) {
+ 
+ // This macro returns the address of a well-known, explicit symbol
+ #define EXPLICIT_SYMBOL(SYM) \
+-   if (!strcmp(SymbolName, #SYM)) return &SYM
++   if (!strcmp(SymbolName, #SYM)) return (void *)&SYM
+ 
+ // Under glibc we have a weird situation. The stderr/out/in symbols are both
+ // macros and global variables because of standards requirements. So, we

patches/llvm-void/llvm-002-musl-ppc64-elfv2.patch

@@ -0,0 +1,26 @@
+This patches LLVM to use ELFv2 on ppc64 uncoditionally unless overridden. We
+need this because unlike most distros we use ELFv2 for both glibc and musl
+on big endian ppc64.
+
+--- a/lib/Target/PowerPC/PPCTargetMachine.cpp
++++ b/lib/Target/PowerPC/PPCTargetMachine.cpp
+@@ -213,9 +213,8 @@ static PPCTargetMachine::PPCABI computeTargetABI(const Triple &TT,
+ 
+   switch (TT.getArch()) {
+   case Triple::ppc64le:
+-    return PPCTargetMachine::PPC_ABI_ELFv2;
+   case Triple::ppc64:
+-    return PPCTargetMachine::PPC_ABI_ELFv1;
++    return PPCTargetMachine::PPC_ABI_ELFv2;
+   default:
+     return PPCTargetMachine::PPC_ABI_UNKNOWN;
+   }
+--- a/test/CodeGen/PowerPC/ppc64-elf-abi.ll
++++ b/test/CodeGen/PowerPC/ppc64-elf-abi.ll
+@@ -1,4 +1,5 @@
+-; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu < %s | FileCheck %s -check-prefix=CHECK-ELFv1
++; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu < %s | FileCheck %s -check-prefix=CHECK-ELFv2
++; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-musl < %s | FileCheck %s -check-prefix=CHECK-ELFv2
+ ; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -target-abi elfv1 < %s | FileCheck %s -check-prefix=CHECK-ELFv1
+ ; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -target-abi elfv2 < %s | FileCheck %s -check-prefix=CHECK-ELFv2
+ ; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s -check-prefix=CHECK-ELFv2

patches/llvm-void/llvm-003-secureplt.patch

@@ -0,0 +1,11 @@
+--- llvm/lib/Target/PowerPC/PPCSubtarget.cpp
++++ llvm/lib/Target/PowerPC/PPCSubtarget.cpp
+@@ -150,7 +150,7 @@ void PPCSubtarget::initSubtargetFeatures(StringRef CPU, StringRef FS) {
+ 
+   if ((TargetTriple.isOSFreeBSD() && TargetTriple.getOSMajorVersion() >= 13) ||
+       TargetTriple.isOSNetBSD() || TargetTriple.isOSOpenBSD() ||
+-      TargetTriple.isMusl())
++      isTargetLinux())
+     SecurePlt = true;
+ 
+   if (HasSPE && IsPPC64)

patches/llvm-void/llvm-004-override-opt.patch

@@ -0,0 +1,18 @@
+This allows us to override the optimization level as not all platforms can
+deal with -O3.
+
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -893,6 +893,12 @@ if( MINGW AND NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" )
+   llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELEASE "-O3" "-O2")
+ endif()
+ 
++set(VOID_CXX_OPT_FLAGS "" CACHE STRING "Optimization level to use")
++
++if(NOT VOID_CXX_OPT_FLAGS STREQUAL "")
++  llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELEASE "-O3" "${VOID_CXX_OPT_FLAGS}")
++endif()
++
+ # Put this before tblgen. Else we have a circular dependence.
+ add_subdirectory(lib/Demangle)
+ add_subdirectory(lib/Support)

patches/llvm-void/llvm-005-ppc-bigpic.patch

@@ -0,0 +1,38 @@
+From f3dbdd49c06bfafc1d6138094cf42889c14d38b6 Mon Sep 17 00:00:00 2001
+From: Samuel Holland <samuel@sholland.org>
+Date: Sun, 3 Nov 2019 10:57:27 -0600
+Subject: [PATCH] [LLVM][PowerPC] Assume BigPIC if no PIC level is specified
+
+---
+ llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp  | 2 +-
+ llvm/lib/Target/PowerPC/PPCMCInstLower.cpp | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
+index 269b84b4e8d..03246a5242c 100644
+--- llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
++++ llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
+@@ -488,7 +488,7 @@ void PPCAsmPrinter::EmitTlsCall(const MachineInstr *MI,
+ 
+   // Add 32768 offset to the symbol so we follow up the latest GOT/PLT ABI.
+   if (Kind == MCSymbolRefExpr::VK_PLT && Subtarget->isSecurePlt() &&
+-      M->getPICLevel() == PICLevel::BigPIC)
++      M->getPICLevel() != PICLevel::SmallPIC)
+     TlsRef = MCBinaryExpr::createAdd(
+         TlsRef, MCConstantExpr::create(32768, OutContext), OutContext);
+   const MachineOperand &MO = MI->getOperand(2);
+diff --git a/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp b/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
+index 027e6bd1ba0..ae461f4eea9 100644
+--- llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
++++ llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
+@@ -116,7 +116,7 @@ static MCOperand GetSymbolRef(const MachineOperand &MO, const MCSymbol *Symbol,
+   const MCExpr *Expr = MCSymbolRefExpr::create(Symbol, RefKind, Ctx);
+   // If -msecure-plt -fPIC, add 32768 to symbol.
+   if (Subtarget->isSecurePlt() && TM.isPositionIndependent() &&
+-      M->getPICLevel() == PICLevel::BigPIC &&
++      M->getPICLevel() != PICLevel::SmallPIC &&
+       MO.getTargetFlags() == PPCII::MO_PLT)
+     Expr =
+         MCBinaryExpr::createAdd(Expr, MCConstantExpr::create(32768, Ctx), Ctx);
+-- 
+2.23.0

patches/llvm-void/llvm-006-aarch64-mf_exec.patch

@@ -0,0 +1,25 @@
+Fix failures in AllocationTests/MappedMemoryTest.* on aarch64:
+
+    Failing Tests (8):
+        LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.AllocAndRelease/3
+        LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.DuplicateNear/3
+        LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.EnabledWrite/3
+        LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.MultipleAllocAndRelease/3
+        LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.SuccessiveNear/3
+        LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.UnalignedNear/3
+        LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.ZeroNear/3
+        LLVM-Unit :: Support/./SupportTests/AllocationTests/MappedMemoryTest.ZeroSizeNear/3
+
+Upstream-Issue: https://bugs.llvm.org/show_bug.cgi?id=14278#c10
+
+--- a/lib/Support/Unix/Memory.inc
++++ b/lib/Support/Unix/Memory.inc
+@@ -59,7 +59,7 @@
+     return PROT_READ | PROT_WRITE | PROT_EXEC;
+   case llvm::sys::Memory::MF_EXEC:
+ #if (defined(__FreeBSD__) || defined(__POWERPC__) || defined (__ppc__) || \
+-     defined(_POWER) || defined(_ARCH_PPC))
++     defined(_POWER) || defined(_ARCH_PPC) || (defined(__linux__) && defined(__aarch64__)))
+     // On PowerPC, having an executable page that has no read permission
+     // can have unintended consequences.  The function InvalidateInstruction-
+     // Cache uses instructions dcbf and icbi, both of which are treated by

patches/llvm-void/llvm-007-ppc-d85007.patch

@@ -0,0 +1,86 @@
+From cf54ca458afff1f7827bfbbc939429a00496c4f7 Mon Sep 17 00:00:00 2001
+From: Tom Stellard <tstellar@redhat.com>
+Date: Tue, 18 Aug 2020 10:54:49 -0700
+Subject: [PATCH] [PowerPC] PPCBoolRetToInt: Skip translation if there is
+ ConstantExpr
+
+PPCBoolRetToInt collects PHI, Argument, Call and Constant defs related to an `i1` value which later is translated to an `i32`/`i64` value. The `translate` method expects an `i1` value. However, if the `Constant` is a `ConstantExpr`, the type of the `ConstantExpr` might not be `i1`.
+
+Fixes https://bugs.llvm.org/show_bug.cgi?id=46923 which causes ICE
+```
+llvm-project/llvm/lib/IR/Constants.cpp:1924: static llvm::Constant *llvm::ConstantExpr::getZExt(llvm::Constant *, llvm::Type *, bool): Assertion `C->getType()->getScalarSizeInBits() < Ty->getScalarSizeInBits()&& "SrcTy must be smaller than DestTy for ZExt!"' failed.
+```
+
+Differential Revision: https://reviews.llvm.org/D85007
+---
+ llvm/lib/Target/PowerPC/PPCBoolRetToInt.cpp |  8 ++++--
+ llvm/test/CodeGen/PowerPC/pr46923.ll        | 31 +++++++++++++++++++++
+ 2 files changed, 37 insertions(+), 2 deletions(-)
+ create mode 100644 llvm/test/CodeGen/PowerPC/pr46923.ll
+
+diff --git a/llvm/lib/Target/PowerPC/PPCBoolRetToInt.cpp b/llvm/lib/Target/PowerPC/PPCBoolRetToInt.cpp
+index 2259a29f838..cfe3b3ce2e9 100644
+--- llvm/lib/Target/PowerPC/PPCBoolRetToInt.cpp
++++ llvm/lib/Target/PowerPC/PPCBoolRetToInt.cpp
+@@ -90,6 +90,9 @@ class PPCBoolRetToInt : public FunctionPass {
+ 
+   // Translate a i1 value to an equivalent i32/i64 value:
+   Value *translate(Value *V) {
++    assert(V->getType() == Type::getInt1Ty(V->getContext()) &&
++           "Expect an i1 value");
++
+     Type *IntTy = ST->isPPC64() ? Type::getInt64Ty(V->getContext())
+                                 : Type::getInt32Ty(V->getContext());
+ 
+@@ -227,8 +230,9 @@ class PPCBoolRetToInt : public FunctionPass {
+     // CallInst. Potentially, bitwise operations (AND, OR, XOR, NOT) and sign
+     // extension could also be handled in the future.
+     for (Value *V : Defs)
+-      if (!isa<PHINode>(V) && !isa<Constant>(V) &&
+-          !isa<Argument>(V) && !isa<CallInst>(V))
++      if ((!isa<PHINode>(V) && !isa<Constant>(V) && !isa<Argument>(V) &&
++           !isa<CallInst>(V)) ||
++          isa<ConstantExpr>(V))
+         return false;
+ 
+     for (Value *V : Defs)
+diff --git a/llvm/test/CodeGen/PowerPC/pr46923.ll b/llvm/test/CodeGen/PowerPC/pr46923.ll
+new file mode 100644
+index 00000000000..d6f65508848
+--- /dev/null
++++ llvm/test/CodeGen/PowerPC/pr46923.ll
+@@ -0,0 +1,31 @@
++; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
++; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-unknown \
++; RUN:   -ppc-asm-full-reg-names < %s | FileCheck %s
++
++@bar = external constant i64, align 8
++
++define i1 @foo() {
++; CHECK-LABEL: foo:
++; CHECK:       # %bb.0: # %entry
++; CHECK-NEXT:    crxor 4*cr5+lt, 4*cr5+lt, 4*cr5+lt
++; CHECK-NEXT:    li r3, 0
++; CHECK-NEXT:    li r4, 1
++; CHECK-NEXT:    isel r3, r4, r3, 4*cr5+lt
++; CHECK-NEXT:    blr
++entry:
++  br label %next
++
++next:
++  br i1 undef, label %true, label %false
++
++true:
++  br label %end
++
++false:
++  br label %end
++
++end:
++  %a = phi i1 [ icmp ugt (i64 0, i64 ptrtoint (i64* @bar to i64)), %true ],
++              [ icmp ugt (i64 0, i64 2), %false ]
++  ret i1 %a
++}
+-- 
+2.18.1
+