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[Hexagon] Add an early if-conversion pass

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llvm-svn: 249423
This commit is contained in:
Krzysztof Parzyszek 2015-10-06 15:49:14 +00:00
parent 6ec0cf9dc8
commit f0b61fb8a6
9 changed files with 1711 additions and 18 deletions
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1
lib/Target/Hexagon/CMakeLists.txt
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@ -18,6 +18,7 @@ add_llvm_target(HexagonCodeGen
HexagonCFGOptimizer.cpp
HexagonCommonGEP.cpp
HexagonCopyToCombine.cpp
HexagonEarlyIfConv.cpp
HexagonExpandCondsets.cpp
HexagonExpandPredSpillCode.cpp
HexagonFixupHwLoops.cpp

1064
lib/Target/Hexagon/HexagonEarlyIfConv.cpp Normal file
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File diff suppressed because it is too large Load Diff

95
lib/Target/Hexagon/HexagonInstrInfo.cpp
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@ -684,7 +684,7 @@ void HexagonInstrInfo::loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
}
bool
HexagonInstrInfo::expandPostRAPseudo(MachineBasicBlock::iterator MI) const {
const HexagonRegisterInfo &TRI = getRegisterInfo();
const HexagonRegisterInfo &HRI = getRegisterInfo();
MachineRegisterInfo &MRI = MI->getParent()->getParent()->getRegInfo();
MachineBasicBlock &MBB = *MI->getParent();
DebugLoc DL = MI->getDebugLoc();
@ -693,7 +693,7 @@ HexagonInstrInfo::expandPostRAPseudo(MachineBasicBlock::iterator MI) const {
switch (Opc) {
case Hexagon::ALIGNA:
BuildMI(MBB, MI, DL, get(Hexagon::A2_andir), MI->getOperand(0).getReg())
.addReg(TRI.getFrameRegister())
.addReg(HRI.getFrameRegister())
.addImm(-MI->getOperand(1).getImm());
MBB.erase(MI);
return true;
@ -718,15 +718,15 @@ HexagonInstrInfo::expandPostRAPseudo(MachineBasicBlock::iterator MI) const {
unsigned DstReg = MI->getOperand(0).getReg();
unsigned Src1Reg = MI->getOperand(1).getReg();
unsigned Src2Reg = MI->getOperand(2).getReg();
unsigned Src1SubHi = TRI.getSubReg(Src1Reg, Hexagon::subreg_hireg);
unsigned Src1SubLo = TRI.getSubReg(Src1Reg, Hexagon::subreg_loreg);
unsigned Src2SubHi = TRI.getSubReg(Src2Reg, Hexagon::subreg_hireg);
unsigned Src2SubLo = TRI.getSubReg(Src2Reg, Hexagon::subreg_loreg);
unsigned Src1SubHi = HRI.getSubReg(Src1Reg, Hexagon::subreg_hireg);
unsigned Src1SubLo = HRI.getSubReg(Src1Reg, Hexagon::subreg_loreg);
unsigned Src2SubHi = HRI.getSubReg(Src2Reg, Hexagon::subreg_hireg);
unsigned Src2SubLo = HRI.getSubReg(Src2Reg, Hexagon::subreg_loreg);
BuildMI(MBB, MI, MI->getDebugLoc(), get(Hexagon::M2_mpyi),
TRI.getSubReg(DstReg, Hexagon::subreg_hireg)).addReg(Src1SubHi)
HRI.getSubReg(DstReg, Hexagon::subreg_hireg)).addReg(Src1SubHi)
.addReg(Src2SubHi);
BuildMI(MBB, MI, MI->getDebugLoc(), get(Hexagon::M2_mpyi),
TRI.getSubReg(DstReg, Hexagon::subreg_loreg)).addReg(Src1SubLo)
HRI.getSubReg(DstReg, Hexagon::subreg_loreg)).addReg(Src1SubLo)
.addReg(Src2SubLo);
MBB.erase(MI);
MRI.clearKillFlags(Src1SubHi);
@ -741,17 +741,17 @@ HexagonInstrInfo::expandPostRAPseudo(MachineBasicBlock::iterator MI) const {
unsigned Src1Reg = MI->getOperand(1).getReg();
unsigned Src2Reg = MI->getOperand(2).getReg();
unsigned Src3Reg = MI->getOperand(3).getReg();
unsigned Src1SubHi = TRI.getSubReg(Src1Reg, Hexagon::subreg_hireg);
unsigned Src1SubLo = TRI.getSubReg(Src1Reg, Hexagon::subreg_loreg);
unsigned Src2SubHi = TRI.getSubReg(Src2Reg, Hexagon::subreg_hireg);
unsigned Src2SubLo = TRI.getSubReg(Src2Reg, Hexagon::subreg_loreg);
unsigned Src3SubHi = TRI.getSubReg(Src3Reg, Hexagon::subreg_hireg);
unsigned Src3SubLo = TRI.getSubReg(Src3Reg, Hexagon::subreg_loreg);
unsigned Src1SubHi = HRI.getSubReg(Src1Reg, Hexagon::subreg_hireg);
unsigned Src1SubLo = HRI.getSubReg(Src1Reg, Hexagon::subreg_loreg);
unsigned Src2SubHi = HRI.getSubReg(Src2Reg, Hexagon::subreg_hireg);
unsigned Src2SubLo = HRI.getSubReg(Src2Reg, Hexagon::subreg_loreg);
unsigned Src3SubHi = HRI.getSubReg(Src3Reg, Hexagon::subreg_hireg);
unsigned Src3SubLo = HRI.getSubReg(Src3Reg, Hexagon::subreg_loreg);
BuildMI(MBB, MI, MI->getDebugLoc(), get(Hexagon::M2_maci),
TRI.getSubReg(DstReg, Hexagon::subreg_hireg)).addReg(Src1SubHi)
HRI.getSubReg(DstReg, Hexagon::subreg_hireg)).addReg(Src1SubHi)
.addReg(Src2SubHi).addReg(Src3SubHi);
BuildMI(MBB, MI, MI->getDebugLoc(), get(Hexagon::M2_maci),
TRI.getSubReg(DstReg, Hexagon::subreg_loreg)).addReg(Src1SubLo)
HRI.getSubReg(DstReg, Hexagon::subreg_loreg)).addReg(Src1SubLo)
.addReg(Src2SubLo).addReg(Src3SubLo);
MBB.erase(MI);
MRI.clearKillFlags(Src1SubHi);
@ -762,6 +762,30 @@ HexagonInstrInfo::expandPostRAPseudo(MachineBasicBlock::iterator MI) const {
MRI.clearKillFlags(Src3SubLo);
return true;
}
case Hexagon::MUX64_rr: {
const MachineOperand &Op0 = MI->getOperand(0);
const MachineOperand &Op1 = MI->getOperand(1);
const MachineOperand &Op2 = MI->getOperand(2);
const MachineOperand &Op3 = MI->getOperand(3);
unsigned Rd = Op0.getReg();
unsigned Pu = Op1.getReg();
unsigned Rs = Op2.getReg();
unsigned Rt = Op3.getReg();
DebugLoc DL = MI->getDebugLoc();
unsigned K1 = getKillRegState(Op1.isKill());
unsigned K2 = getKillRegState(Op2.isKill());
unsigned K3 = getKillRegState(Op3.isKill());
if (Rd != Rs)
BuildMI(MBB, MI, DL, get(Hexagon::A2_tfrpt), Rd)
.addReg(Pu, (Rd == Rt) ? K1 : 0)
.addReg(Rs, K2);
if (Rd != Rt)
BuildMI(MBB, MI, DL, get(Hexagon::A2_tfrpf), Rd)
.addReg(Pu, K1)
.addReg(Rt, K3);
MBB.erase(MI);
return true;
}
case Hexagon::TCRETURNi:
MI->setDesc(get(Hexagon::J2_jump));
return true;
@ -1285,7 +1309,44 @@ bool HexagonInstrInfo::isValidOffset(unsigned Opcode, int Offset,
case Hexagon::TFR_FIA:
case Hexagon::INLINEASM:
return true;
}
case Hexagon::L2_ploadrbt_io:
case Hexagon::L2_ploadrbf_io:
case Hexagon::L2_ploadrubt_io:
case Hexagon::L2_ploadrubf_io:
case Hexagon::S2_pstorerbt_io:
case Hexagon::S2_pstorerbf_io:
case Hexagon::S4_storeirb_io:
case Hexagon::S4_storeirbt_io:
case Hexagon::S4_storeirbf_io:
return isUInt<6>(Offset);
case Hexagon::L2_ploadrht_io:
case Hexagon::L2_ploadrhf_io:
case Hexagon::L2_ploadruht_io:
case Hexagon::L2_ploadruhf_io:
case Hexagon::S2_pstorerht_io:
case Hexagon::S2_pstorerhf_io:
case Hexagon::S4_storeirh_io:
case Hexagon::S4_storeirht_io:
case Hexagon::S4_storeirhf_io:
return isShiftedUInt<6,1>(Offset);
case Hexagon::L2_ploadrit_io:
case Hexagon::L2_ploadrif_io:
case Hexagon::S2_pstorerit_io:
case Hexagon::S2_pstorerif_io:
case Hexagon::S4_storeiri_io:
case Hexagon::S4_storeirit_io:
case Hexagon::S4_storeirif_io:
return isShiftedUInt<6,2>(Offset);
case Hexagon::L2_ploadrdt_io:
case Hexagon::L2_ploadrdf_io:
case Hexagon::S2_pstorerdt_io:
case Hexagon::S2_pstorerdf_io:
return isShiftedUInt<6,3>(Offset);
} // switch
llvm_unreachable("No offset range is defined for this opcode. "
"Please define it in the above switch statement!");

6
lib/Target/Hexagon/HexagonTargetMachine.cpp
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@ -37,6 +37,9 @@ static cl::opt<bool> EnableExpandCondsets("hexagon-expand-condsets",
cl::init(true), cl::Hidden, cl::ZeroOrMore,
cl::desc("Early expansion of MUX"));
static cl::opt<bool> EnableEarlyIf("hexagon-eif", cl::init(true), cl::Hidden,
cl::ZeroOrMore, cl::desc("Enable early if-conversion"));
static cl::opt<bool> EnableGenInsert("hexagon-insert", cl::init(true),
cl::Hidden, cl::desc("Generate \"insert\" instructions"));
@ -78,6 +81,7 @@ namespace llvm {
FunctionPass *createHexagonCFGOptimizer();
FunctionPass *createHexagonCommonGEP();
FunctionPass *createHexagonCopyToCombine();
FunctionPass *createHexagonEarlyIfConversion();
FunctionPass *createHexagonExpandCondsets();
FunctionPass *createHexagonExpandPredSpillCode();
FunctionPass *createHexagonFixupHwLoops();
@ -214,6 +218,8 @@ bool HexagonPassConfig::addInstSelector() {
printAndVerify("After hexagon peephole pass");
if (EnableGenInsert)
addPass(createHexagonGenInsert(), false);
if (EnableEarlyIf)
addPass(createHexagonEarlyIfConversion(), false);
}
return false;

412
test/CodeGen/Hexagon/early-if-conversion-bug1.ll Normal file
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@ -0,0 +1,412 @@
; RUN: llc -O2 -march=hexagon -mcpu=hexagonv5 < %s | FileCheck %s
; we do not want to see a segv.
; CHECK-NOT: segmentation
; CHECK: call
target datalayout = "e-m:e-p:32:32-i1:32-i64:64-a:0-v32:32-n16:32"
target triple = "hexagon"
%"class.std::__1::basic_string" = type { %"class.std::__1::__compressed_pair" }
%"class.std::__1::__compressed_pair" = type { %"class.std::__1::__libcpp_compressed_pair_imp" }
%"class.std::__1::__libcpp_compressed_pair_imp" = type { %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep" }
%"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep" = type { %union.anon }
%union.anon = type { %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__long" }
%"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__long" = type { i32, i32, i8* }
%"class.std::__1::ios_base" = type { i32 (...)**, i32, i32, i32, i32, i32, i8*, i8*, void (i8, %"class.std::__1::ios_base"*, i32)**, i32*, i32, i32, i32*, i32, i32, i8**, i32, i32 }
%"class.std::__1::basic_streambuf" = type { i32 (...)**, %"class.std::__1::locale", i8*, i8*, i8*, i8*, i8*, i8* }
%"class.std::__1::locale" = type { %"class.std::__1::locale::__imp"* }
%"class.std::__1::locale::__imp" = type opaque
%"class.std::__1::allocator" = type { i8 }
%"class.std::__1::ostreambuf_iterator" = type { %"class.std::__1::basic_streambuf"* }
%"class.std::__1::__basic_string_common" = type { i8 }
%"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__short" = type { %union.anon.0, [11 x i8] }
%union.anon.0 = type { i8 }
; Function Attrs: nounwind
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i32, i1) #0
declare i32 @__gxx_personality_v0(...)
; Function Attrs: nounwind
declare void @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEED1Ev(%"class.std::__1::basic_string"*) #1
define weak_odr hidden i32 @_ZNSt3__116__pad_and_outputIcNS_11char_traitsIcEEEENS_19ostreambuf_iteratorIT_T0_EES6_PKS4_S8_S8_RNS_8ios_baseES4_(i32 %__s.coerce, i8* %__ob, i8* %__op, i8* %__oe, %"class.std::__1::ios_base"* nonnull %__iob, i8 zeroext %__fl) #2 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
entry:
%this.addr.i66 = alloca %"class.std::__1::basic_streambuf"*, align 4
%__s.addr.i67 = alloca i8*, align 4
%__n.addr.i68 = alloca i32, align 4
%__p.addr.i.i = alloca i8*, align 4
%this.addr.i.i.i13.i.i = alloca %"class.std::__1::__libcpp_compressed_pair_imp"*, align 4
%this.addr.i.i14.i.i = alloca %"class.std::__1::__compressed_pair"*, align 4
%this.addr.i15.i.i = alloca %"class.std::__1::basic_string"*, align 4
%__x.addr.i.i.i.i.i = alloca i8*, align 4
%__r.addr.i.i.i.i = alloca i8*, align 4
%this.addr.i.i.i4.i.i = alloca %"class.std::__1::__libcpp_compressed_pair_imp"*, align 4
%this.addr.i.i5.i.i = alloca %"class.std::__1::__compressed_pair"*, align 4
%this.addr.i6.i.i = alloca %"class.std::__1::basic_string"*, align 4
%this.addr.i.i.i.i.i56 = alloca %"class.std::__1::__libcpp_compressed_pair_imp"*, align 4
%this.addr.i.i.i.i57 = alloca %"class.std::__1::__compressed_pair"*, align 4
%this.addr.i.i.i58 = alloca %"class.std::__1::basic_string"*, align 4
%this.addr.i.i59 = alloca %"class.std::__1::basic_string"*, align 4
%this.addr.i60 = alloca %"class.std::__1::basic_string"*, align 4
%this.addr.i.i.i.i.i = alloca %"class.std::__1::allocator"*, align 4
%this.addr.i.i.i.i = alloca %"class.std::__1::__libcpp_compressed_pair_imp"*, align 4
%this.addr.i.i.i = alloca %"class.std::__1::__compressed_pair"*, align 4
%this.addr.i.i = alloca %"class.std::__1::basic_string"*, align 4
%__n.addr.i.i = alloca i32, align 4
%__c.addr.i.i = alloca i8, align 1
%this.addr.i53 = alloca %"class.std::__1::basic_string"*, align 4
%__n.addr.i54 = alloca i32, align 4
%__c.addr.i = alloca i8, align 1
%this.addr.i46 = alloca %"class.std::__1::basic_streambuf"*, align 4
%__s.addr.i47 = alloca i8*, align 4
%__n.addr.i48 = alloca i32, align 4
%this.addr.i44 = alloca %"class.std::__1::basic_streambuf"*, align 4
%__s.addr.i = alloca i8*, align 4
%__n.addr.i = alloca i32, align 4
%this.addr.i41 = alloca %"class.std::__1::ios_base"*, align 4
%__wide.addr.i = alloca i32, align 4
%__r.i = alloca i32, align 4
%this.addr.i = alloca %"class.std::__1::ios_base"*, align 4
%retval = alloca %"class.std::__1::ostreambuf_iterator", align 4
%__s = alloca %"class.std::__1::ostreambuf_iterator", align 4
%__ob.addr = alloca i8*, align 4
%__op.addr = alloca i8*, align 4
%__oe.addr = alloca i8*, align 4
%__iob.addr = alloca %"class.std::__1::ios_base"*, align 4
%__fl.addr = alloca i8, align 1
%__sz = alloca i32, align 4
%__ns = alloca i32, align 4
%__np = alloca i32, align 4
%__sp = alloca %"class.std::__1::basic_string", align 4
%exn.slot = alloca i8*
%ehselector.slot = alloca i32
%cleanup.dest.slot = alloca i32
%coerce.dive = getelementptr %"class.std::__1::ostreambuf_iterator", %"class.std::__1::ostreambuf_iterator"* %__s, i32 0, i32 0
%coerce.val.ip = inttoptr i32 %__s.coerce to %"class.std::__1::basic_streambuf"*
store %"class.std::__1::basic_streambuf"* %coerce.val.ip, %"class.std::__1::basic_streambuf"** %coerce.dive
store i8* %__ob, i8** %__ob.addr, align 4
store i8* %__op, i8** %__op.addr, align 4
store i8* %__oe, i8** %__oe.addr, align 4
store %"class.std::__1::ios_base"* %__iob, %"class.std::__1::ios_base"** %__iob.addr, align 4
store i8 %__fl, i8* %__fl.addr, align 1
%__sbuf_ = getelementptr inbounds %"class.std::__1::ostreambuf_iterator", %"class.std::__1::ostreambuf_iterator"* %__s, i32 0, i32 0
%0 = load %"class.std::__1::basic_streambuf"*, %"class.std::__1::basic_streambuf"** %__sbuf_, align 4
%cmp = icmp eq %"class.std::__1::basic_streambuf"* %0, null
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
%1 = bitcast %"class.std::__1::ostreambuf_iterator"* %retval to i8*
%2 = bitcast %"class.std::__1::ostreambuf_iterator"* %__s to i8*
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %1, i8* %2, i32 4, i32 4, i1 false)
br label %return
if.end: ; preds = %entry
%3 = load i8*, i8** %__oe.addr, align 4
%4 = load i8*, i8** %__ob.addr, align 4
%sub.ptr.lhs.cast = ptrtoint i8* %3 to i32
%sub.ptr.rhs.cast = ptrtoint i8* %4 to i32
%sub.ptr.sub = sub i32 %sub.ptr.lhs.cast, %sub.ptr.rhs.cast
store i32 %sub.ptr.sub, i32* %__sz, align 4
%5 = load %"class.std::__1::ios_base"*, %"class.std::__1::ios_base"** %__iob.addr, align 4
store %"class.std::__1::ios_base"* %5, %"class.std::__1::ios_base"** %this.addr.i, align 4
%this1.i = load %"class.std::__1::ios_base"*, %"class.std::__1::ios_base"** %this.addr.i
%__width_.i = getelementptr inbounds %"class.std::__1::ios_base", %"class.std::__1::ios_base"* %this1.i, i32 0, i32 3
%6 = load i32, i32* %__width_.i, align 4
store i32 %6, i32* %__ns, align 4
%7 = load i32, i32* %__ns, align 4
%8 = load i32, i32* %__sz, align 4
%cmp1 = icmp sgt i32 %7, %8
br i1 %cmp1, label %if.then2, label %if.else
if.then2: ; preds = %if.end
%9 = load i32, i32* %__sz, align 4
%10 = load i32, i32* %__ns, align 4
%sub = sub nsw i32 %10, %9
store i32 %sub, i32* %__ns, align 4
br label %if.end3
if.else: ; preds = %if.end
store i32 0, i32* %__ns, align 4
br label %if.end3
if.end3: ; preds = %if.else, %if.then2
%11 = load i8*, i8** %__op.addr, align 4
%12 = load i8*, i8** %__ob.addr, align 4
%sub.ptr.lhs.cast4 = ptrtoint i8* %11 to i32
%sub.ptr.rhs.cast5 = ptrtoint i8* %12 to i32
%sub.ptr.sub6 = sub i32 %sub.ptr.lhs.cast4, %sub.ptr.rhs.cast5
store i32 %sub.ptr.sub6, i32* %__np, align 4
%13 = load i32, i32* %__np, align 4
%cmp7 = icmp sgt i32 %13, 0
br i1 %cmp7, label %if.then8, label %if.end15
if.then8: ; preds = %if.end3
%__sbuf_9 = getelementptr inbounds %"class.std::__1::ostreambuf_iterator", %"class.std::__1::ostreambuf_iterator"* %__s, i32 0, i32 0
%14 = load %"class.std::__1::basic_streambuf"*, %"class.std::__1::basic_streambuf"** %__sbuf_9, align 4
%15 = load i8*, i8** %__ob.addr, align 4
%16 = load i32, i32* %__np, align 4
store %"class.std::__1::basic_streambuf"* %14, %"class.std::__1::basic_streambuf"** %this.addr.i46, align 4
store i8* %15, i8** %__s.addr.i47, align 4
store i32 %16, i32* %__n.addr.i48, align 4
%this1.i49 = load %"class.std::__1::basic_streambuf"*, %"class.std::__1::basic_streambuf"** %this.addr.i46
%17 = bitcast %"class.std::__1::basic_streambuf"* %this1.i49 to i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)***
%vtable.i50 = load i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)**, i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)*** %17
%vfn.i51 = getelementptr inbounds i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)*, i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)** %vtable.i50, i64 12
%18 = load i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)*, i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)** %vfn.i51
%19 = load i8*, i8** %__s.addr.i47, align 4
%20 = load i32, i32* %__n.addr.i48, align 4
%call.i52 = call i32 %18(%"class.std::__1::basic_streambuf"* %this1.i49, i8* %19, i32 %20)
%21 = load i32, i32* %__np, align 4
%cmp11 = icmp ne i32 %call.i52, %21
br i1 %cmp11, label %if.then12, label %if.end14
if.then12: ; preds = %if.then8
%__sbuf_13 = getelementptr inbounds %"class.std::__1::ostreambuf_iterator", %"class.std::__1::ostreambuf_iterator"* %__s, i32 0, i32 0
store %"class.std::__1::basic_streambuf"* null, %"class.std::__1::basic_streambuf"** %__sbuf_13, align 4
%22 = bitcast %"class.std::__1::ostreambuf_iterator"* %retval to i8*
%23 = bitcast %"class.std::__1::ostreambuf_iterator"* %__s to i8*
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %22, i8* %23, i32 4, i32 4, i1 false)
br label %return
if.end14: ; preds = %if.then8
br label %if.end15
if.end15: ; preds = %if.end14, %if.end3
%24 = load i32, i32* %__ns, align 4
%cmp16 = icmp sgt i32 %24, 0
br i1 %cmp16, label %if.then17, label %if.end25
if.then17: ; preds = %if.end15
%25 = load i32, i32* %__ns, align 4
%26 = load i8, i8* %__fl.addr, align 1
store %"class.std::__1::basic_string"* %__sp, %"class.std::__1::basic_string"** %this.addr.i53, align 4
store i32 %25, i32* %__n.addr.i54, align 4
store i8 %26, i8* %__c.addr.i, align 1
%this1.i55 = load %"class.std::__1::basic_string"*, %"class.std::__1::basic_string"** %this.addr.i53
%27 = load i32, i32* %__n.addr.i54, align 4
%28 = load i8, i8* %__c.addr.i, align 1
store %"class.std::__1::basic_string"* %this1.i55, %"class.std::__1::basic_string"** %this.addr.i.i, align 4
store i32 %27, i32* %__n.addr.i.i, align 4
store i8 %28, i8* %__c.addr.i.i, align 1
%this1.i.i = load %"class.std::__1::basic_string"*, %"class.std::__1::basic_string"** %this.addr.i.i
%29 = bitcast %"class.std::__1::basic_string"* %this1.i.i to %"class.std::__1::__basic_string_common"*
%__r_.i.i = getelementptr inbounds %"class.std::__1::basic_string", %"class.std::__1::basic_string"* %this1.i.i, i32 0, i32 0
store %"class.std::__1::__compressed_pair"* %__r_.i.i, %"class.std::__1::__compressed_pair"** %this.addr.i.i.i, align 4
%this1.i.i.i = load %"class.std::__1::__compressed_pair"*, %"class.std::__1::__compressed_pair"** %this.addr.i.i.i
%30 = bitcast %"class.std::__1::__compressed_pair"* %this1.i.i.i to %"class.std::__1::__libcpp_compressed_pair_imp"*
store %"class.std::__1::__libcpp_compressed_pair_imp"* %30, %"class.std::__1::__libcpp_compressed_pair_imp"** %this.addr.i.i.i.i, align 4
%this1.i.i.i.i = load %"class.std::__1::__libcpp_compressed_pair_imp"*, %"class.std::__1::__libcpp_compressed_pair_imp"** %this.addr.i.i.i.i
%31 = bitcast %"class.std::__1::__libcpp_compressed_pair_imp"* %this1.i.i.i.i to %"class.std::__1::allocator"*
store %"class.std::__1::allocator"* %31, %"class.std::__1::allocator"** %this.addr.i.i.i.i.i, align 4
%this1.i.i.i.i.i = load %"class.std::__1::allocator"*, %"class.std::__1::allocator"** %this.addr.i.i.i.i.i
%__first_.i.i.i.i = getelementptr inbounds %"class.std::__1::__libcpp_compressed_pair_imp", %"class.std::__1::__libcpp_compressed_pair_imp"* %this1.i.i.i.i, i32 0, i32 0
%32 = load i32, i32* %__n.addr.i.i, align 4
%33 = load i8, i8* %__c.addr.i.i, align 1
call void @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEjc(%"class.std::__1::basic_string"* %this1.i.i, i32 %32, i8 zeroext %33)
%__sbuf_18 = getelementptr inbounds %"class.std::__1::ostreambuf_iterator", %"class.std::__1::ostreambuf_iterator"* %__s, i32 0, i32 0
%34 = load %"class.std::__1::basic_streambuf"*, %"class.std::__1::basic_streambuf"** %__sbuf_18, align 4
store %"class.std::__1::basic_string"* %__sp, %"class.std::__1::basic_string"** %this.addr.i60, align 4
%this1.i61 = load %"class.std::__1::basic_string"*, %"class.std::__1::basic_string"** %this.addr.i60
store %"class.std::__1::basic_string"* %this1.i61, %"class.std::__1::basic_string"** %this.addr.i.i59, align 4
%this1.i.i62 = load %"class.std::__1::basic_string"*, %"class.std::__1::basic_string"** %this.addr.i.i59
store %"class.std::__1::basic_string"* %this1.i.i62, %"class.std::__1::basic_string"** %this.addr.i.i.i58, align 4
%this1.i.i.i63 = load %"class.std::__1::basic_string"*, %"class.std::__1::basic_string"** %this.addr.i.i.i58
%__r_.i.i.i = getelementptr inbounds %"class.std::__1::basic_string", %"class.std::__1::basic_string"* %this1.i.i.i63, i32 0, i32 0
store %"class.std::__1::__compressed_pair"* %__r_.i.i.i, %"class.std::__1::__compressed_pair"** %this.addr.i.i.i.i57, align 4
%this1.i.i.i.i64 = load %"class.std::__1::__compressed_pair"*, %"class.std::__1::__compressed_pair"** %this.addr.i.i.i.i57
%35 = bitcast %"class.std::__1::__compressed_pair"* %this1.i.i.i.i64 to %"class.std::__1::__libcpp_compressed_pair_imp"*
store %"class.std::__1::__libcpp_compressed_pair_imp"* %35, %"class.std::__1::__libcpp_compressed_pair_imp"** %this.addr.i.i.i.i.i56, align 4
%this1.i.i.i.i.i65 = load %"class.std::__1::__libcpp_compressed_pair_imp"*, %"class.std::__1::__libcpp_compressed_pair_imp"** %this.addr.i.i.i.i.i56
%__first_.i.i.i.i.i = getelementptr inbounds %"class.std::__1::__libcpp_compressed_pair_imp", %"class.std::__1::__libcpp_compressed_pair_imp"* %this1.i.i.i.i.i65, i32 0, i32 0
%36 = getelementptr inbounds %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep", %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep"* %__first_.i.i.i.i.i, i32 0, i32 0
%__s.i.i.i = bitcast %union.anon* %36 to %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__short"*
%37 = getelementptr inbounds %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__short", %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__short"* %__s.i.i.i, i32 0, i32 0
%__size_.i.i.i = bitcast %union.anon.0* %37 to i8*
%38 = load i8, i8* %__size_.i.i.i, align 1
%conv.i.i.i = zext i8 %38 to i32
%and.i.i.i = and i32 %conv.i.i.i, 1
%tobool.i.i.i = icmp ne i32 %and.i.i.i, 0
br i1 %tobool.i.i.i, label %cond.true.i.i, label %cond.false.i.i
cond.true.i.i: ; preds = %if.then17
store %"class.std::__1::basic_string"* %this1.i.i62, %"class.std::__1::basic_string"** %this.addr.i15.i.i, align 4
%this1.i16.i.i = load %"class.std::__1::basic_string"*, %"class.std::__1::basic_string"** %this.addr.i15.i.i
%__r_.i17.i.i = getelementptr inbounds %"class.std::__1::basic_string", %"class.std::__1::basic_string"* %this1.i16.i.i, i32 0, i32 0
store %"class.std::__1::__compressed_pair"* %__r_.i17.i.i, %"class.std::__1::__compressed_pair"** %this.addr.i.i14.i.i, align 4
%this1.i.i18.i.i = load %"class.std::__1::__compressed_pair"*, %"class.std::__1::__compressed_pair"** %this.addr.i.i14.i.i
%39 = bitcast %"class.std::__1::__compressed_pair"* %this1.i.i18.i.i to %"class.std::__1::__libcpp_compressed_pair_imp"*
store %"class.std::__1::__libcpp_compressed_pair_imp"* %39, %"class.std::__1::__libcpp_compressed_pair_imp"** %this.addr.i.i.i13.i.i, align 4
%this1.i.i.i19.i.i = load %"class.std::__1::__libcpp_compressed_pair_imp"*, %"class.std::__1::__libcpp_compressed_pair_imp"** %this.addr.i.i.i13.i.i
%__first_.i.i.i20.i.i = getelementptr inbounds %"class.std::__1::__libcpp_compressed_pair_imp", %"class.std::__1::__libcpp_compressed_pair_imp"* %this1.i.i.i19.i.i, i32 0, i32 0
%40 = getelementptr inbounds %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep", %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep"* %__first_.i.i.i20.i.i, i32 0, i32 0
%__l.i.i.i = bitcast %union.anon* %40 to %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__long"*
%__data_.i21.i.i = getelementptr inbounds %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__long", %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__long"* %__l.i.i.i, i32 0, i32 2
%41 = load i8*, i8** %__data_.i21.i.i, align 4
br label %_ZNKSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE4dataEv.exit
cond.false.i.i: ; preds = %if.then17
store %"class.std::__1::basic_string"* %this1.i.i62, %"class.std::__1::basic_string"** %this.addr.i6.i.i, align 4
%this1.i7.i.i = load %"class.std::__1::basic_string"*, %"class.std::__1::basic_string"** %this.addr.i6.i.i
%__r_.i8.i.i = getelementptr inbounds %"class.std::__1::basic_string", %"class.std::__1::basic_string"* %this1.i7.i.i, i32 0, i32 0
store %"class.std::__1::__compressed_pair"* %__r_.i8.i.i, %"class.std::__1::__compressed_pair"** %this.addr.i.i5.i.i, align 4
%this1.i.i9.i.i = load %"class.std::__1::__compressed_pair"*, %"class.std::__1::__compressed_pair"** %this.addr.i.i5.i.i
%42 = bitcast %"class.std::__1::__compressed_pair"* %this1.i.i9.i.i to %"class.std::__1::__libcpp_compressed_pair_imp"*
store %"class.std::__1::__libcpp_compressed_pair_imp"* %42, %"class.std::__1::__libcpp_compressed_pair_imp"** %this.addr.i.i.i4.i.i, align 4
%this1.i.i.i10.i.i = load %"class.std::__1::__libcpp_compressed_pair_imp"*, %"class.std::__1::__libcpp_compressed_pair_imp"** %this.addr.i.i.i4.i.i
%__first_.i.i.i11.i.i = getelementptr inbounds %"class.std::__1::__libcpp_compressed_pair_imp", %"class.std::__1::__libcpp_compressed_pair_imp"* %this1.i.i.i10.i.i, i32 0, i32 0
%43 = getelementptr inbounds %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep", %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep"* %__first_.i.i.i11.i.i, i32 0, i32 0
%__s.i12.i.i = bitcast %union.anon* %43 to %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__short"*
%__data_.i.i.i = getelementptr inbounds %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__short", %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__short"* %__s.i12.i.i, i32 0, i32 1
%arrayidx.i.i.i = getelementptr inbounds [11 x i8], [11 x i8]* %__data_.i.i.i, i32 0, i32 0
store i8* %arrayidx.i.i.i, i8** %__r.addr.i.i.i.i, align 4
%44 = load i8*, i8** %__r.addr.i.i.i.i, align 4
store i8* %44, i8** %__x.addr.i.i.i.i.i, align 4
%45 = load i8*, i8** %__x.addr.i.i.i.i.i, align 4
br label %_ZNKSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE4dataEv.exit
_ZNKSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE4dataEv.exit: ; preds = %cond.false.i.i, %cond.true.i.i
%cond.i.i = phi i8* [ %41, %cond.true.i.i ], [ %45, %cond.false.i.i ]
store i8* %cond.i.i, i8** %__p.addr.i.i, align 4
%46 = load i8*, i8** %__p.addr.i.i, align 4
%47 = load i32, i32* %__ns, align 4
store %"class.std::__1::basic_streambuf"* %34, %"class.std::__1::basic_streambuf"** %this.addr.i66, align 4
store i8* %46, i8** %__s.addr.i67, align 4
store i32 %47, i32* %__n.addr.i68, align 4
%this1.i69 = load %"class.std::__1::basic_streambuf"*, %"class.std::__1::basic_streambuf"** %this.addr.i66
%48 = bitcast %"class.std::__1::basic_streambuf"* %this1.i69 to i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)***
%vtable.i70 = load i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)**, i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)*** %48
%vfn.i71 = getelementptr inbounds i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)*, i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)** %vtable.i70, i64 12
%49 = load i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)*, i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)** %vfn.i71
%50 = load i8*, i8** %__s.addr.i67, align 4
%51 = load i32, i32* %__n.addr.i68, align 4
%call.i7273 = invoke i32 %49(%"class.std::__1::basic_streambuf"* %this1.i69, i8* %50, i32 %51)
to label %_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKci.exit unwind label %lpad
_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKci.exit: ; preds = %_ZNKSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE4dataEv.exit
br label %invoke.cont
invoke.cont: ; preds = %_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKci.exit
%52 = load i32, i32* %__ns, align 4
%cmp21 = icmp ne i32 %call.i7273, %52
br i1 %cmp21, label %if.then22, label %if.end24
if.then22: ; preds = %invoke.cont
%__sbuf_23 = getelementptr inbounds %"class.std::__1::ostreambuf_iterator", %"class.std::__1::ostreambuf_iterator"* %__s, i32 0, i32 0
store %"class.std::__1::basic_streambuf"* null, %"class.std::__1::basic_streambuf"** %__sbuf_23, align 4
%53 = bitcast %"class.std::__1::ostreambuf_iterator"* %retval to i8*
%54 = bitcast %"class.std::__1::ostreambuf_iterator"* %__s to i8*
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %53, i8* %54, i32 4, i32 4, i1 false)
store i32 1, i32* %cleanup.dest.slot
br label %cleanup
lpad: ; preds = %_ZNKSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE4dataEv.exit
%55 = landingpad { i8*, i32 }
cleanup
%56 = extractvalue { i8*, i32 } %55, 0
store i8* %56, i8** %exn.slot
%57 = extractvalue { i8*, i32 } %55, 1
store i32 %57, i32* %ehselector.slot
call void @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEED1Ev(%"class.std::__1::basic_string"* %__sp) #0
br label %eh.resume
if.end24: ; preds = %invoke.cont
store i32 0, i32* %cleanup.dest.slot
br label %cleanup
cleanup: ; preds = %if.end24, %if.then22
call void @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEED1Ev(%"class.std::__1::basic_string"* %__sp) #0
%cleanup.dest = load i32, i32* %cleanup.dest.slot
switch i32 %cleanup.dest, label %unreachable [
i32 0, label %cleanup.cont
i32 1, label %return
]
cleanup.cont: ; preds = %cleanup
br label %if.end25
if.end25: ; preds = %cleanup.cont, %if.end15
%58 = load i8*, i8** %__oe.addr, align 4
%59 = load i8*, i8** %__op.addr, align 4
%sub.ptr.lhs.cast26 = ptrtoint i8* %58 to i32
%sub.ptr.rhs.cast27 = ptrtoint i8* %59 to i32
%sub.ptr.sub28 = sub i32 %sub.ptr.lhs.cast26, %sub.ptr.rhs.cast27
store i32 %sub.ptr.sub28, i32* %__np, align 4
%60 = load i32, i32* %__np, align 4
%cmp29 = icmp sgt i32 %60, 0
br i1 %cmp29, label %if.then30, label %if.end37
if.then30: ; preds = %if.end25
%__sbuf_31 = getelementptr inbounds %"class.std::__1::ostreambuf_iterator", %"class.std::__1::ostreambuf_iterator"* %__s, i32 0, i32 0
%61 = load %"class.std::__1::basic_streambuf"*, %"class.std::__1::basic_streambuf"** %__sbuf_31, align 4
%62 = load i8*, i8** %__op.addr, align 4
%63 = load i32, i32* %__np, align 4
store %"class.std::__1::basic_streambuf"* %61, %"class.std::__1::basic_streambuf"** %this.addr.i44, align 4
store i8* %62, i8** %__s.addr.i, align 4
store i32 %63, i32* %__n.addr.i, align 4
%this1.i45 = load %"class.std::__1::basic_streambuf"*, %"class.std::__1::basic_streambuf"** %this.addr.i44
%64 = bitcast %"class.std::__1::basic_streambuf"* %this1.i45 to i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)***
%vtable.i = load i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)**, i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)*** %64
%vfn.i = getelementptr inbounds i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)*, i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)** %vtable.i, i64 12
%65 = load i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)*, i32 (%"class.std::__1::basic_streambuf"*, i8*, i32)** %vfn.i
%66 = load i8*, i8** %__s.addr.i, align 4
%67 = load i32, i32* %__n.addr.i, align 4
%call.i = call i32 %65(%"class.std::__1::basic_streambuf"* %this1.i45, i8* %66, i32 %67)
%68 = load i32, i32* %__np, align 4
%cmp33 = icmp ne i32 %call.i, %68
br i1 %cmp33, label %if.then34, label %if.end36
if.then34: ; preds = %if.then30
%__sbuf_35 = getelementptr inbounds %"class.std::__1::ostreambuf_iterator", %"class.std::__1::ostreambuf_iterator"* %__s, i32 0, i32 0
store %"class.std::__1::basic_streambuf"* null, %"class.std::__1::basic_streambuf"** %__sbuf_35, align 4
%69 = bitcast %"class.std::__1::ostreambuf_iterator"* %retval to i8*
%70 = bitcast %"class.std::__1::ostreambuf_iterator"* %__s to i8*
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %69, i8* %70, i32 4, i32 4, i1 false)
br label %return
if.end36: ; preds = %if.then30
br label %if.end37
if.end37: ; preds = %if.end36, %if.end25
%71 = load %"class.std::__1::ios_base"*, %"class.std::__1::ios_base"** %__iob.addr, align 4
store %"class.std::__1::ios_base"* %71, %"class.std::__1::ios_base"** %this.addr.i41, align 4
store i32 0, i32* %__wide.addr.i, align 4
%this1.i42 = load %"class.std::__1::ios_base"*, %"class.std::__1::ios_base"** %this.addr.i41
%__width_.i43 = getelementptr inbounds %"class.std::__1::ios_base", %"class.std::__1::ios_base"* %this1.i42, i32 0, i32 3
%72 = load i32, i32* %__width_.i43, align 4
store i32 %72, i32* %__r.i, align 4
%73 = load i32, i32* %__wide.addr.i, align 4
%__width_2.i = getelementptr inbounds %"class.std::__1::ios_base", %"class.std::__1::ios_base"* %this1.i42, i32 0, i32 3
store i32 %73, i32* %__width_2.i, align 4
%74 = load i32, i32* %__r.i, align 4
%75 = bitcast %"class.std::__1::ostreambuf_iterator"* %retval to i8*
%76 = bitcast %"class.std::__1::ostreambuf_iterator"* %__s to i8*
call void @llvm.memcpy.p0i8.p0i8.i32(i8* %75, i8* %76, i32 4, i32 4, i1 false)
br label %return
return: ; preds = %if.end37, %if.then34, %cleanup, %if.then12, %if.then
%coerce.dive39 = getelementptr %"class.std::__1::ostreambuf_iterator", %"class.std::__1::ostreambuf_iterator"* %retval, i32 0, i32 0
%77 = load %"class.std::__1::basic_streambuf"*, %"class.std::__1::basic_streambuf"** %coerce.dive39
%coerce.val.pi = ptrtoint %"class.std::__1::basic_streambuf"* %77 to i32
ret i32 %coerce.val.pi
eh.resume: ; preds = %lpad
%exn = load i8*, i8** %exn.slot
%sel = load i32, i32* %ehselector.slot
%lpad.val = insertvalue { i8*, i32 } undef, i8* %exn, 0
%lpad.val40 = insertvalue { i8*, i32 } %lpad.val, i32 %sel, 1
resume { i8*, i32 } %lpad.val40
unreachable: ; preds = %cleanup
unreachable
}
declare void @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEjc(%"class.std::__1::basic_string"*, i32, i8 zeroext) #2
attributes #0 = { nounwind }
attributes #1 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
!llvm.ident = !{!0}
!0 = !{!"Clang 3.1"}

17
test/CodeGen/Hexagon/early-if-phi-i1.ll Normal file
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@ -0,0 +1,17 @@
; RUN: llc < %s
; REQUIRES: asserts
; Check that the early if-conversion does not predicate block1 (where the
; join block has a phi node of type i1).
define i1 @foo(i32 %x, i32* %p) {
entry:
%c = icmp sgt i32 %x, 0
%c1 = icmp sgt i32 %x, 10
br i1 %c, label %block2, label %block1
block1:
store i32 1, i32* %p, align 4
br label %block2
block2:
%b = phi i1 [ 0, %entry ], [ %c1, %block1 ]
ret i1 %b
}

57
test/CodeGen/Hexagon/early-if-spare.ll Normal file
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; RUN: llc -O2 -mcpu=hexagonv5 < %s | FileCheck %s
; Check if the three stores in the loop were predicated.
; CHECK: if{{.*}}memw
; CHECK: if{{.*}}memw
; CHECK: if{{.*}}memw
target datalayout = "e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-i1:32:32-f64:64:64-f32:32:32-v64:64:64-v32:32:32-a0:0-n16:32"
target triple = "hexagon"
define void @fred(i32 %n, i32* %bp) nounwind {
entry:
%cmp16 = icmp eq i32 %n, 0
br i1 %cmp16, label %for.end, label %for.body.lr.ph
for.body.lr.ph: ; preds = %entry
%cmp2 = icmp ugt i32 %n, 32
br label %for.body
for.body: ; preds = %for.inc, %for.body.lr.ph
%i.017 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.inc ]
%call = tail call i32 @foo(i32* %bp) nounwind
%call1 = tail call i32 @bar(i32* %bp) nounwind
br i1 %cmp2, label %if.then, label %if.else
if.then: ; preds = %for.body
%arrayidx = getelementptr inbounds i32, i32* %bp, i32 %i.017
store i32 %call, i32* %arrayidx, align 4, !tbaa !0
%add = add i32 %i.017, 2
%arrayidx3 = getelementptr inbounds i32, i32* %bp, i32 %add
store i32 %call1, i32* %arrayidx3, align 4, !tbaa !0
br label %for.inc
if.else: ; preds = %for.body
%or = or i32 %call1, %call
%arrayidx4 = getelementptr inbounds i32, i32* %bp, i32 %i.017
store i32 %or, i32* %arrayidx4, align 4, !tbaa !0
br label %for.inc
for.inc: ; preds = %if.then, %if.else
%inc = add i32 %i.017, 1
%exitcond = icmp eq i32 %inc, %n
br i1 %exitcond, label %for.end.loopexit, label %for.body
for.end.loopexit: ; preds = %for.inc
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry
ret void
}
declare i32 @foo(i32*) nounwind
declare i32 @bar(i32*) nounwind
!0 = !{!"int", !1}
!1 = !{!"omnipotent char", !2}
!2 = !{!"Simple C/C++ TBAA"}

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test/CodeGen/Hexagon/early-if.ll Normal file
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; RUN: llc -O2 -march=hexagon -mcpu=hexagonv5 < %s | FileCheck %s
; Rely on the comments generated by llc. Check that "if.then" was predicated.
; CHECK: while.body13
; CHECK: if{{.*}}memd
; CHECK: while.end
%struct.1 = type { i32, i32 }
%struct.2 = type { [24 x i32], [24 x i32], [24 x i32], [24 x i32], [24 x i32], [24 x i32], [24 x i32], [24 x i32], [24 x i32], [24 x i32], [24 x i32], [24 x i32], [24 x i32], [24 x i32], [24 x i32], [24 x i32], [24 x i32], [3 x i32], [24 x i32], [8 x %struct.1], [5 x i32] }
@A1 = global i64 zeroinitializer
@A2 = global i64 zeroinitializer
@B1 = global i32 zeroinitializer
@B2 = global i32 zeroinitializer
@C1 = global i8 zeroinitializer
declare i32 @llvm.hexagon.S2.cl0(i32) nounwind readnone
declare i32 @llvm.hexagon.S2.setbit.r(i32, i32) nounwind readnone
declare i64 @llvm.hexagon.M2.vmpy2s.s0(i32, i32) nounwind readnone
declare i64 @llvm.hexagon.M2.vmac2s.s0(i64, i32, i32) nounwind readnone
declare i64 @llvm.hexagon.A2.vaddws(i64, i64) nounwind readnone
declare i64 @llvm.hexagon.A2.vsubws(i64, i64) nounwind readnone
declare i32 @llvm.hexagon.A4.modwrapu(i32, i32) nounwind readnone
define void @foo(i32 %n, i64* %ptr) nounwind {
entry:
br label %while.body
while.body:
%count = phi i32 [ 0, %entry ], [ %next, %while.end ]
%idx = phi i32 [ 0, %entry ], [ %15, %while.end ]
%0 = load i32, i32* @B1, align 4
%1 = load i32, i32* @B2, align 8
%2 = and i32 %1, %0
br label %while.body13
while.body13: ; preds = %while.body, %if.end
%3 = phi i64 [ %13, %if.end ], [ 0, %while.body ]
%4 = phi i64 [ %14, %if.end ], [ 0, %while.body ]
%m = phi i32 [ %6, %if.end ], [ %2, %while.body ]
%5 = tail call i32 @llvm.hexagon.S2.cl0(i32 %m)
%6 = tail call i32 @llvm.hexagon.S2.setbit.r(i32 %m, i32 %5)
%cgep85 = getelementptr [10 x %struct.2], [10 x %struct.2]* inttoptr (i32 -121502345 to [10 x %struct.2]*), i32 0, i32 %idx
%cgep90 = getelementptr %struct.2, %struct.2* %cgep85, i32 0, i32 12, i32 %5
%7 = load i32, i32* %cgep90, align 4
%8 = tail call i64 @llvm.hexagon.M2.vmpy2s.s0(i32 %7, i32 %7)
%cgep91 = getelementptr %struct.2, %struct.2* %cgep85, i32 0, i32 13, i32 %5
%9 = load i32, i32* %cgep91, align 4
%10 = tail call i64 @llvm.hexagon.M2.vmac2s.s0(i64 %8, i32 %9, i32 %9)
%11 = load i8, i8* @C1, align 1
%and24 = and i8 %11, 1
%cmp = icmp eq i8 %and24, 0
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %while.body13
%12 = tail call i64 @llvm.hexagon.A2.vaddws(i64 %3, i64 %10)
store i64 %12, i64* %ptr, align 8
br label %if.end
if.end: ; preds = %if.then, %while.body13
%13 = phi i64 [ %12, %if.then ], [ %3, %while.body13 ]
%14 = tail call i64 @llvm.hexagon.A2.vsubws(i64 %4, i64 %10)
%tobool12 = icmp eq i32 %6, 0
br i1 %tobool12, label %while.end, label %while.body13
while.end:
%add40 = add i32 %idx, 1
%15 = tail call i32 @llvm.hexagon.A4.modwrapu(i32 %add40, i32 10) nounwind
%next = add i32 %count, 1
%cc = icmp eq i32 %next, %n
br i1 %cc, label %end, label %while.body
end:
store i64 %10, i64* @A2, align 8
ret void
}

2
test/CodeGen/Hexagon/ifcvt-edge-weight.ll
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@ -1,4 +1,4 @@
; RUN: llc -march=hexagon -mcpu=hexagonv5 -print-machineinstrs=if-converter %s -o /dev/null 2>&1 | FileCheck %s
; RUN: llc -march=hexagon -mcpu=hexagonv5 -hexagon-eif=0 -print-machineinstrs=if-converter %s -o /dev/null 2>&1 | FileCheck %s
; Check that the edge weights are updated correctly after if-conversion.
; CHECK: BB#3: