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Reland "[DebugInfo] Enable the debug entry values feature by default"

Browse Source 
Differential Revision: https://reviews.llvm.org/D73534
This commit is contained in:
Djordje Todorovic 2020-02-19 10:17:52 +01:00
parent 4f25d92f10
commit fdc5995043
77 changed files with 319 additions and 94 deletions
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2
include/llvm/CodeGen/CommandFlags.inc
View File

@ -277,7 +277,7 @@ static cl::opt<bool>
static cl::opt<bool>
EnableDebugEntryValues("debug-entry-values",
cl::desc("Emit debug info about parameter's entry values"),
cl::desc("Enable debug info for the debug entry values"),
cl::init(false));
static cl::opt<bool>

3
include/llvm/Target/TargetMachine.h
View File

@ -237,6 +237,9 @@ public:
void setSupportsDefaultOutlining(bool Enable) {
Options.SupportsDefaultOutlining = Enable;
}
void setSupportsDebugEntryValues(bool Enable) {
Options.SupportsDebugEntryValues = Enable;
}
bool shouldPrintMachineCode() const { return Options.PrintMachineCode; }

15
include/llvm/Target/TargetOptions.h
View File

@ -119,7 +119,8 @@ namespace llvm {
ExplicitEmulatedTLS(false), EnableIPRA(false),
EmitStackSizeSection(false), EnableMachineOutliner(false),
SupportsDefaultOutlining(false), EmitAddrsig(false),
EnableDebugEntryValues(false), ForceDwarfFrameSection(false) {}
SupportsDebugEntryValues(false), EnableDebugEntryValues(false),
ForceDwarfFrameSection(false) {}
/// PrintMachineCode - This flag is enabled when the -print-machineinstrs
/// option is specified on the command line, and should enable debugging
@ -256,8 +257,18 @@ namespace llvm {
/// Emit address-significance table.
unsigned EmitAddrsig : 1;
/// Emit debug info about parameter's entry values.
/// Set if the target supports the debug entry values by default.
unsigned SupportsDebugEntryValues : 1;
/// When set to true, the EnableDebugEntryValues option forces production
/// of debug entry values even if the target does not officially support
/// it. Useful for testing purposes only. This flag should never be checked
/// directly, always use \ref ShouldEmitDebugEntryValues instead.
unsigned EnableDebugEntryValues : 1;
/// NOTE: There are targets that still do not support the call site info
/// production (the info about the arguments passed to the call, necessary
/// for the debug entry values), so we keep using the experimental option
/// (-debug-entry-values) to test them as well.
bool ShouldEmitDebugEntryValues() const;
/// Emit DWARF debug frame section.
unsigned ForceDwarfFrameSection : 1;

15
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@ -95,6 +95,10 @@ static cl::opt<bool> UseDwarfRangesBaseAddressSpecifier(
"use-dwarf-ranges-base-address-specifier", cl::Hidden,
cl::desc("Use base address specifiers in debug_ranges"), cl::init(false));
static cl::opt<bool> EmitDwarfDebugEntryValues(
"emit-debug-entry-values", cl::Hidden,
cl::desc("Emit the debug entry values"), cl::init(false));
static cl::opt<bool> GenerateARangeSection("generate-arange-section",
cl::Hidden,
cl::desc("Generate dwarf aranges"),
@ -419,6 +423,12 @@ DwarfDebug::DwarfDebug(AsmPrinter *A, Module *M)
// a monolithic string offsets table without any header.
UseSegmentedStringOffsetsTable = DwarfVersion >= 5;
// Emit call-site-param debug info for GDB and LLDB, if the target supports
// the debug entry values feature. It can also be enabled explicitly.
EmitDebugEntryValues = (Asm->TM.Options.ShouldEmitDebugEntryValues() &&
(tuneForGDB() || tuneForLLDB())) ||
EmitDwarfDebugEntryValues;
Asm->OutStreamer->getContext().setDwarfVersion(DwarfVersion);
}
@ -840,9 +850,8 @@ void DwarfDebug::constructCallSiteEntryDIEs(const DISubprogram &SP,
DIE &CallSiteDIE = CU.constructCallSiteEntryDIE(ScopeDIE, CalleeDIE,
IsTail, PCAddr, CallReg);
// GDB and LLDB support call site parameter debug info.
if (Asm->TM.Options.EnableDebugEntryValues &&
(tuneForGDB() || tuneForLLDB())) {
// Optionally emit call-site-param debug info.
if (emitDebugEntryValues()) {
ParamSet Params;
// Try to interpret values of call site parameters.
collectCallSiteParameters(&MI, Params);

9
lib/CodeGen/AsmPrinter/DwarfDebug.h
View File

@ -386,6 +386,11 @@ class DwarfDebug : public DebugHandlerBase {
/// a monolithic sequence of string offsets.
bool UseSegmentedStringOffsetsTable;
/// Enable production of call site parameters needed to print the debug entry
/// values. Useful for testing purposes when a debugger does not support the
/// feature yet.
bool EmitDebugEntryValues;
/// Separated Dwarf Variables
/// In general these will all be for bits that are left in the
/// original object file, rather than things that are meant
@ -708,6 +713,10 @@ public:
return UseSegmentedStringOffsetsTable;
}
bool emitDebugEntryValues() const {
return EmitDebugEntryValues;
}
bool shareAcrossDWOCUs() const;
/// Returns the Dwarf Version.

4
lib/CodeGen/LiveDebugValues.cpp
View File

@ -984,7 +984,7 @@ void LiveDebugValues::transferRegisterDef(
if (auto *TPC = getAnalysisIfAvailable<TargetPassConfig>()) {
auto &TM = TPC->getTM<TargetMachine>();
if (TM.Options.EnableDebugEntryValues)
if (TM.Options.ShouldEmitDebugEntryValues())
emitEntryValues(MI, OpenRanges, VarLocIDs, Transfers, KillSet);
}
}
@ -1484,7 +1484,7 @@ void LiveDebugValues::recordEntryValue(const MachineInstr &MI,
VarLocMap &VarLocIDs) {
if (auto *TPC = getAnalysisIfAvailable<TargetPassConfig>()) {
auto &TM = TPC->getTM<TargetMachine>();
if (!TM.Options.EnableDebugEntryValues)
if (!TM.Options.ShouldEmitDebugEntryValues())
return;
}

4
lib/CodeGen/MIRParser/MIRParser.cpp
View File

@ -381,11 +381,11 @@ bool MIRParserImpl::initializeCallSiteInfo(
CSInfo.emplace_back(Reg, ArgRegPair.ArgNo);
}
if (TM.Options.EnableDebugEntryValues)
if (TM.Options.ShouldEmitDebugEntryValues())
MF.addCallArgsForwardingRegs(&*CallI, std::move(CSInfo));
}
if (YamlMF.CallSitesInfo.size() && !TM.Options.EnableDebugEntryValues)
if (YamlMF.CallSitesInfo.size() && !TM.Options.ShouldEmitDebugEntryValues())
return error(Twine("Call site info provided but not used"));
return false;
}

3
lib/CodeGen/MachineFunction.cpp
View File

@ -865,8 +865,7 @@ MachineFunction::CallSiteInfoMap::iterator
MachineFunction::getCallSiteInfo(const MachineInstr *MI) {
assert(MI->isCandidateForCallSiteEntry() &&
"Call site info refers only to call (MI) candidates");
if (!Target.Options.EnableDebugEntryValues)
if (!Target.Options.ShouldEmitDebugEntryValues())
return CallSitesInfo.end();
return CallSitesInfo.find(MI);
}

2
lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
View File

@ -867,7 +867,7 @@ EmitSchedule(MachineBasicBlock::iterator &InsertPos) {
}
if (MI->isCandidateForCallSiteEntry() &&
DAG->getTarget().Options.EnableDebugEntryValues)
DAG->getTarget().Options.ShouldEmitDebugEntryValues())
MF.addCallArgsForwardingRegs(MI, DAG->getSDCallSiteInfo(Node));
return MI;

8
lib/CodeGen/TargetOptionsImpl.cpp
View File

@ -45,3 +45,11 @@ bool TargetOptions::DisableFramePointerElim(const MachineFunction &MF) const {
bool TargetOptions::HonorSignDependentRoundingFPMath() const {
return !UnsafeFPMath && HonorSignDependentRoundingFPMathOption;
}
/// NOTE: There are targets that still do not support the call site info
/// production (the info about the arguments passed to the call, necessary
/// for the debug entry values), so we keep using the experimental option
/// (-debug-entry-values) to test them as well.
bool TargetOptions::ShouldEmitDebugEntryValues() const {
return SupportsDebugEntryValues || EnableDebugEntryValues;
}

2
lib/Target/AArch64/AArch64ISelLowering.cpp
View File

@ -4206,7 +4206,7 @@ AArch64TargetLowering::LowerCall(CallLoweringInfo &CLI,
RegsToPass.emplace_back(VA.getLocReg(), Arg);
RegsUsed.insert(VA.getLocReg());
const TargetOptions &Options = DAG.getTarget().Options;
if (Options.EnableDebugEntryValues)
if (Options.SupportsDebugEntryValues)
CSInfo.emplace_back(VA.getLocReg(), i);
}
} else {

3
lib/Target/AArch64/AArch64InstrInfo.cpp
View File

@ -6585,7 +6585,8 @@ Optional<RegImmPair> AArch64InstrInfo::isAddImmediate(const MachineInstr &MI,
// TODO: Handle cases where Reg is a super- or sub-register of the
// destination register.
if (Reg != MI.getOperand(0).getReg())
const MachineOperand &Op0 = MI.getOperand(0);
if (!Op0.isReg() || Reg != Op0.getReg())
return None;
switch (MI.getOpcode()) {

3
lib/Target/AArch64/AArch64TargetMachine.cpp
View File

@ -309,6 +309,9 @@ AArch64TargetMachine::AArch64TargetMachine(const Target &T, const Triple &TT,
// AArch64 supports default outlining behaviour.
setSupportsDefaultOutlining(true);
// AArch64 supports the debug entry values.
setSupportsDebugEntryValues(true);
}
AArch64TargetMachine::~AArch64TargetMachine() = default;

6
lib/Target/ARM/ARMBaseInstrInfo.cpp
View File

@ -5353,7 +5353,8 @@ Optional<RegImmPair> ARMBaseInstrInfo::isAddImmediate(const MachineInstr &MI,
// TODO: Handle cases where Reg is a super- or sub-register of the
// destination register.
if (Reg != MI.getOperand(0).getReg())
const MachineOperand &Op0 = MI.getOperand(0);
if (!Op0.isReg() || Reg != Op0.getReg())
return None;
// We describe SUBri or ADDri instructions.
@ -5365,8 +5366,7 @@ Optional<RegImmPair> ARMBaseInstrInfo::isAddImmediate(const MachineInstr &MI,
// TODO: Third operand can be global address (usually some string). Since
// strings can be relocated we cannot calculate their offsets for
// now.
if (!MI.getOperand(0).isReg() || !MI.getOperand(1).isReg() ||
!MI.getOperand(2).isImm())
if (!MI.getOperand(1).isReg() || !MI.getOperand(2).isImm())
return None;
Offset = MI.getOperand(2).getImm() * Sign;

2
lib/Target/ARM/ARMISelLowering.cpp
View File

@ -2226,7 +2226,7 @@ ARMTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
isThisReturn = true;
}
const TargetOptions &Options = DAG.getTarget().Options;
if (Options.EnableDebugEntryValues)
if (Options.SupportsDebugEntryValues)
CSInfo.emplace_back(VA.getLocReg(), i);
RegsToPass.push_back(std::make_pair(VA.getLocReg(), Arg));
} else if (isByVal) {

3
lib/Target/ARM/ARMTargetMachine.cpp
View File

@ -243,6 +243,9 @@ ARMBaseTargetMachine::ARMBaseTargetMachine(const Target &T, const Triple &TT,
this->Options.NoTrapAfterNoreturn = true;
}
// ARM supports the debug entry values.
setSupportsDebugEntryValues(true);
initAsmInfo();
}

2
lib/Target/X86/X86ISelLowering.cpp
View File

@ -4020,7 +4020,7 @@ X86TargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
} else if (VA.isRegLoc()) {
RegsToPass.push_back(std::make_pair(VA.getLocReg(), Arg));
const TargetOptions &Options = DAG.getTarget().Options;
if (Options.EnableDebugEntryValues)
if (Options.SupportsDebugEntryValues)
CSInfo.emplace_back(VA.getLocReg(), I);
if (isVarArg && IsWin64) {
// Win64 ABI requires argument XMM reg to be copied to the corresponding

3
lib/Target/X86/X86TargetMachine.cpp
View File

@ -232,6 +232,9 @@ X86TargetMachine::X86TargetMachine(const Target &T, const Triple &TT,
setMachineOutliner(true);
// x86 supports the debug entry values.
setSupportsDebugEntryValues(true);
initAsmInfo();
}

2
test/CodeGen/AArch64/arm64-anyregcc.ll
View File

@ -1,4 +1,4 @@
; RUN: llc < %s -debug-entry-values -mtriple=arm64-apple-darwin | FileCheck %s
; RUN: llc < %s -mtriple=arm64-apple-darwin | FileCheck %s
; Stackmap Header: no constants - 6 callsites
; CHECK-LABEL: .section __LLVM_STACKMAPS,__llvm_stackmaps

4
test/CodeGen/AArch64/arm64-patchpoint.ll
View File

@ -1,5 +1,5 @@
; RUN: llc -mtriple=arm64-apple-darwin -debug-entry-values -enable-misched=0 -mcpu=cyclone < %s | FileCheck %s
; RUN: llc -mtriple=arm64-apple-darwin -debug-entry-values -enable-misched=0 -mcpu=cyclone -fast-isel -fast-isel-abort=1 < %s | FileCheck %s
; RUN: llc -mtriple=arm64-apple-darwin -enable-misched=0 -mcpu=cyclone < %s | FileCheck %s
; RUN: llc -mtriple=arm64-apple-darwin -enable-misched=0 -mcpu=cyclone -fast-isel -fast-isel-abort=1 < %s | FileCheck %s
; Trivial patchpoint codegen
;

2
test/CodeGen/AArch64/arm64-tls-dynamics.ll
View File

@ -1,6 +1,6 @@
; Verify the call site info. If the call site info is not
; in the valid state, an assert should be triggered.
; RUN: llc < %s -debug-entry-values -mtriple=arm64-none-linux-gnu -stop-after=machineverifier -relocation-model=pic -aarch64-elf-ldtls-generation=1 < %s
; RUN: llc < %s -mtriple=arm64-none-linux-gnu -stop-after=machineverifier -relocation-model=pic -aarch64-elf-ldtls-generation=1 < %s
; RUN: llc -mtriple=arm64-none-linux-gnu -relocation-model=pic -aarch64-elf-ldtls-generation=1 -verify-machineinstrs < %s | FileCheck %s
; RUN: llc -mtriple=arm64-none-linux-gnu -relocation-model=pic -aarch64-elf-ldtls-generation=1 -filetype=obj < %s | llvm-objdump -r - | FileCheck --check-prefix=CHECK-RELOC %s

2
test/CodeGen/ARM/smml.ll
View File

@ -10,7 +10,7 @@
; Next test would previously trigger an assertion responsible for verification of
; call site info state.
; RUN: llc -stop-after=if-converter -debug-entry-values -mtriple=thumbv6t2-eabi %s -o -| FileCheck %s -check-prefix=CHECK-CALLSITE
; RUN: llc -stop-after=if-converter -mtriple=thumbv6t2-eabi %s -o -| FileCheck %s -check-prefix=CHECK-CALLSITE
; CHECK-CALLSITE: name: test_used_flags
; CHECK-CALLSITE: callSites:

2
test/CodeGen/MIR/Hexagon/bundled-call-site-info.mir
View File

@ -1,3 +1,5 @@
# We do not support the call site info for the target now, so we use the experimental option (-debug-entry-values).
# RUN: llc -debug-entry-values -run-pass=none -verify-machineinstrs -o - %s | FileCheck %s
# Verify that it is possible to read and write MIR where a callSites entry

2
test/CodeGen/MIR/X86/call-site-info-error1.mir
View File

@ -1,4 +1,4 @@
# RUN: not llc -mtriple=x86_64-- -run-pass none -debug-entry-values %s -o - 2>&1 | FileCheck %s
# RUN: not llc -mtriple=x86_64-- -run-pass none %s -o - 2>&1 | FileCheck %s
# CHECK: baa call instruction block out of range. Unable to reference bb:1
--- |
define dso_local i32 @baa(i32 %a) local_unnamed_addr {

2
test/CodeGen/MIR/X86/call-site-info-error2.mir
View File

@ -1,4 +1,4 @@
# RUN: not llc -mtriple=x86_64-- -run-pass none -debug-entry-values %s -o - 2>&1 | FileCheck %s
# RUN: not llc -mtriple=x86_64-- -run-pass none %s -o - 2>&1 | FileCheck %s
# CHECK: baa call instruction offset out of range. Unable to reference instruction at bb: 0 at offset:1
--- |
define dso_local i32 @baa(i32 %a) local_unnamed_addr {

2
test/CodeGen/MIR/X86/call-site-info-error3.mir
View File

@ -1,4 +1,4 @@
# RUN: not llc -mtriple=x86_64-- -run-pass none -debug-entry-values %s -o - 2>&1 | FileCheck %s
# RUN: not llc -mtriple=x86_64-- -run-pass none %s -o - 2>&1 | FileCheck %s
# CHECK: baa call site info should reference call instruction. Instruction at bb:0 at offset:0 is not a call instruction
--- |
define dso_local i32 @baa(i32 %a) local_unnamed_addr {

4
test/CodeGen/MIR/X86/call-site-info-error4.mir
View File

@ -1,5 +1,5 @@
# RUN: not llc -mtriple=x86_64-- -run-pass none %s -o - 2>&1 | FileCheck %s
# CHECK: Call site info provided but not used
# RUN: llc -mtriple=x86_64-- -run-pass none %s -o - 2>&1 | FileCheck %s
# CHECK-NOT: Call site info provided but not used
--- |
define dso_local i32 @baa(i32 %a) local_unnamed_addr {
entry:

4
test/CodeGen/X86/call-site-info-output.ll
View File

@ -1,6 +1,6 @@
; Test call site info MIR printer and parser.Parser assertions and machine
; verifier will check the rest;
; RUN: llc -debug-entry-values %s -stop-before=finalize-isel -o %t.mir
; RUN: llc %s -stop-before=finalize-isel -o %t.mir
; RUN: cat %t.mir | FileCheck %s
; CHECK: name: fn2
; CHECK: callSites:
@ -10,7 +10,7 @@
; CHECK-NEXT: arg: 0, reg: '$edi'
; CHECK-NEXT: arg: 1, reg: '$esi'
; CHECK-NEXT: arg: 2, reg: '$edx'
; RUN: llc -debug-entry-values %t.mir -run-pass=finalize-isel -o -| FileCheck %s --check-prefix=PARSER
; RUN: llc %t.mir -run-pass=finalize-isel -o -| FileCheck %s --check-prefix=PARSER
; Verify that we are able to parse output mir and that we are getting the same result.
; PARSER: name: fn2
; PARSER: callSites:

2
test/CodeGen/X86/hoist-invariant-load.ll
View File

@ -2,7 +2,7 @@
; Verify the call site info. If the call site info is not
; in the valid state, an assert should be triggered.
; RUN: llc < %s -debug-entry-values -stop-after=machineverifier
; RUN: llc < %s -stop-after=machineverifier
; REQUIRES: asserts
; RUN: llc -mcpu=haswell < %s -O2 2>&1 | FileCheck %s

2
test/CodeGen/X86/speculative-load-hardening-indirect.ll
View File

@ -2,7 +2,7 @@
; Verify the call site info. If the call site info is not
; in the valid state, an assert should be triggered.
; RUN: llc < %s -debug-entry-values -mtriple=x86_64-unknown-linux-gnu -x86-speculative-load-hardening -stop-after=machineverifier
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -x86-speculative-load-hardening -stop-after=machineverifier
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -x86-speculative-load-hardening -data-sections | FileCheck %s --check-prefix=X64
; FIXME: Fix machine verifier issues and remove -verify-machineinstrs=0. PR39451.

2
test/CodeGen/X86/statepoint-allocas.ll
View File

@ -1,5 +1,5 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -verify-machineinstrs -debug-entry-values < %s | FileCheck %s
; RUN: llc -verify-machineinstrs < %s | FileCheck %s
; Check that we can lower a use of an alloca both as a deopt value (where the
; exact meaning is up to the consumer of the stackmap) and as an explicit spill
; slot used for GC.

2
test/CodeGen/X86/tail-dup-repeat.ll
View File

@ -1,5 +1,5 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -debug-entry-values | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
; Function Attrs: uwtable
; When tail-duplicating during placement, we work backward from blocks with

4
test/CodeGen/X86/xray-custom-log.ll
View File

@ -1,5 +1,5 @@
; RUN: llc -verify-machineinstrs -debug-entry-values -filetype=asm -o - -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -debug-entry-values -filetype=asm -o - \
; RUN: llc -verify-machineinstrs -filetype=asm -o - -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -filetype=asm -o - \
; RUN: -mtriple=x86_64-unknown-linux-gnu -relocation-model=pic < %s | FileCheck %s -check-prefix=PIC
define i32 @fn() nounwind noinline uwtable "function-instrument"="xray-always" {

4
test/CodeGen/X86/xray-typed-event-log.ll
View File

@ -1,5 +1,5 @@
; RUN: llc -verify-machineinstrs -debug-entry-values -filetype=asm -o - -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -debug-entry-values -filetype=asm -o - -mtriple=x86_64-unknown-linux-gnu \
; RUN: llc -verify-machineinstrs -filetype=asm -o - -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -filetype=asm -o - -mtriple=x86_64-unknown-linux-gnu \
; RUN: -relocation-model=pic < %s | FileCheck %s -check-prefix=PIC
define i32 @fn() nounwind noinline uwtable "function-instrument"="xray-always" {

2
test/DebugInfo/AArch64/call-site-info-output.ll
View File

@ -1,4 +1,4 @@
; RUN: llc -mtriple aarch64-linux-gnu -debug-entry-values %s -o - -stop-before=finalize-isel | FileCheck %s
; RUN: llc -mtriple aarch64-linux-gnu %s -o - -stop-before=finalize-isel | FileCheck %s
; Verify that Selection DAG knows how to recognize simple function parameter forwarding registers.
; Produced from:
; extern int fn1(int,int,int);

2
test/DebugInfo/ARM/call-site-info-output.ll
View File

@ -1,4 +1,4 @@
; RUN: llc -mtriple arm-linux-gnu -debug-entry-values %s -o - -stop-before=finalize-isel | FileCheck %s
; RUN: llc -mtriple arm-linux-gnu %s -o - -stop-before=finalize-isel | FileCheck %s
; Verify that Selection DAG knows how to recognize simple function parameter forwarding registers.
; Produced from:
; extern int fn1(int,int,int);

2
test/DebugInfo/ARM/entry-value-multi-byte-expr.ll
View File

@ -1,4 +1,4 @@
; RUN: llc -debug-entry-values -filetype=asm -o - %s | FileCheck %s
; RUN: llc -filetype=asm -o - %s | FileCheck %s
; Verify that the size operands of the DW_OP_GNU_entry_value operations are
; correct for the multi-byte DW_OP_regx expressions.

2
test/DebugInfo/MIR/AArch64/dbgcall-site-interpret-movzxi.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -mtriple aarch64-linux-gnu -debug-entry-values -start-after=machineverifier -filetype=obj %s -o -| llvm-dwarfdump -| FileCheck %s
# RUN: llc -mtriple aarch64-linux-gnu -start-after=machineverifier -filetype=obj %s -o -| llvm-dwarfdump -| FileCheck %s
#
# Based on the following C reproducer:
#

2
test/DebugInfo/MIR/AArch64/dbgcall-site-interpretation.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -mtriple aarch64-linux-gnu -debug-entry-values -start-after=machineverifier -filetype=obj %s -o -| llvm-dwarfdump -| FileCheck %s
# RUN: llc -mtriple aarch64-linux-gnu -start-after=machineverifier -filetype=obj %s -o -| llvm-dwarfdump -| FileCheck %s
# Following code is used for producing this test case. Note that
# some of argument loading instruction are modified in order to
# cover certain cases.

2
test/DebugInfo/MIR/AArch64/dbgcall-site-orr-moves.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -start-after=livedebugvalues -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
# RUN: llc -start-after=livedebugvalues -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
# Based on the following C reproducer:
#

2
test/DebugInfo/MIR/ARM/dbgcall-site-interpretation.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -mtriple=arm-linux-gnueabi -debug-entry-values -filetype=obj -start-after=machineverifier %s -o -| llvm-dwarfdump -| FileCheck %s
# RUN: llc -mtriple=arm-linux-gnueabi -filetype=obj -start-after=machineverifier %s -o -| llvm-dwarfdump -| FileCheck %s
# Following code is used for producing this test case. Note that
# some of argument loading instruction are modified in order to
# cover certain cases.

4
test/DebugInfo/MIR/ARM/dbgcall-site-propagated-value.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -run-pass=livedebugvalues -o - %s | FileCheck %s
# RUN: llc -run-pass=livedebugvalues -o - %s | FileCheck %s
# Based on the following C reproducer:
#
@ -20,7 +20,7 @@
#
# Generated using:
#
# clang -Os -fno-inline -Xclang -femit-debug-entry-values -g --target=armeb.
# clang -Os -fno-inline -g --target=armeb.
--- |
target datalayout = "E-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"

76
test/DebugInfo/MIR/ARM/dbgcallsite-noreg-is-imm-check.mir Normal file
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@ -0,0 +1,76 @@
# RUN: llc -mtriple=armebv6k-unknown-linux-gnueabihf -filetype=obj -start-after=machineverifier %s -o -| llvm-dwarfdump - | FileCheck %s --implicit-check-not=DW_TAG_GNU_call_site_parameter
## The test was handmade.
--- |
; ModuleID = 'test.c'
source_filename = "test.c"
target datalayout = "E-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "armebv6k-unknown-linux-gnueabihf"
; Function Attrs: nounwind
define dso_local arm_aapcscc i32 @func1(i32 %arg1) local_unnamed_addr !dbg !14 {
entry:
%add = add nsw i32 %arg1, 2, !dbg !19
%a = alloca i32, align 4
call void @llvm.dbg.value(metadata i32 %arg1, metadata !18, metadata !DIExpression()), !dbg !19
%call = call arm_aapcscc i32 @func2(i32 %add), !dbg !19
ret i32 0, !dbg !19
}
declare !dbg !4 dso_local arm_aapcscc i32 @func2(i32) local_unnamed_addr
; Function Attrs: nounwind readnone speculatable willreturn
declare void @llvm.dbg.value(metadata, metadata, metadata)
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10, !11, !12}
!llvm.ident = !{!13}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
!1 = !DIFile(filename: "test.c", directory: "/")
!2 = !{}
!3 = !{!4}
!4 = !DISubprogram(name: "func2", scope: !1, file: !1, line: 8, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
!5 = !DISubroutineType(types: !6)
!6 = !{!7, !7, !7, !8}
!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!8 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 32)
!9 = !{i32 2, !"Dwarf Version", i32 4}
!10 = !{i32 2, !"Debug Info Version", i32 3}
!11 = !{i32 1, !"wchar_size", i32 4}
!12 = !{i32 1, !"min_enum_size", i32 4}
!13 = !{!"clang version 10.0.0"}
!14 = distinct !DISubprogram(name: "func1", scope: !1, file: !1, line: 9, type: !15, scopeLine: 9, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !17)
!15 = !DISubroutineType(types: !16)
!16 = !{!7, !7, !7, !7}
!17 = !{!18}
!18 = !DILocalVariable(name: "arg1", arg: 1, scope: !14, file: !1, line: 9, type: !7)
!19 = !DILocation(line: 0, scope: !14)
...
---
name: func1
alignment: 4
callSites:
- { bb: 0, offset: 11, fwdArgRegs:
- { arg: 0, reg: '$r0' } }
body: |
bb.0.entry:
liveins: $r0, $r1, $r2, $r4, $r10, $lr
DBG_VALUE $r0, $noreg, !18, !DIExpression(), debug-location !19
$sp = frame-setup STMDB_UPD $sp, 14, $noreg, killed $r4, killed $r10, $r11, killed $lr
frame-setup CFI_INSTRUCTION def_cfa_offset 16
frame-setup CFI_INSTRUCTION offset $lr, -4
frame-setup CFI_INSTRUCTION offset $r11, -8
frame-setup CFI_INSTRUCTION offset $r10, -12
frame-setup CFI_INSTRUCTION offset $r4, -16
$r11 = frame-setup ADDri $sp, 8, 14, $noreg, $noreg
frame-setup CFI_INSTRUCTION def_cfa $r11, 8
$sp = frame-setup SUBri $sp, 8, 14, $noreg, $noreg
INLINEASM &"rev $0, $1", 0, 327690, def renamable $r0, 327689, killed renamable $r4, 0, debug-location !19
BL @func2, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $r0, implicit killed $r1, implicit killed $r2, implicit-def $sp, implicit-def $r0, debug-location !19
BX_RET 14, $noreg, implicit killed $r0, debug-location !19
...

5
test/DebugInfo/MIR/ARM/if-coverter-call-site-info.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -mtriple=arm-linux-gnu -debug-entry-values -run-pass if-converter %s -o -| FileCheck %s
# RUN: llc -mtriple=arm-linux-gnu -run-pass if-converter %s -o -| FileCheck %s
# Vefify that the call site info will be updated after the optimization.
# This test case would previously trigger an assertion when
@ -19,8 +19,7 @@
#
# With slight change of MIR - substitution of BL instruction with BL_pred
# in order to trigger optimization.
# clang -target arm-linux-gnu -g -O2 -Xclang -femit-debug-entry-values
# %s -stop-before=if-convert
# clang -target arm-linux-gnu -g -O2 %s -stop-before=if-convert
#
# CHECK: callSites:
# CHECK-NEXT: - { bb: {{.*}}, offset: {{.*}}, fwdArgRegs:

4
test/DebugInfo/MIR/Hexagon/dbgcall-site-instr-before-bundled-call.mir
View File

@ -1,4 +1,6 @@
# RUN: llc -mtriple hexagon -debug-entry-values -start-after=machineverifier -filetype=obj %s -o - | llvm-dwarfdump - | FileCheck %s
# We do not support the call site info for the target now, so we use the experimental option (-debug-entry-values).
# RUN: llc -debug-entry-values -mtriple hexagon -start-after=machineverifier -filetype=obj %s -o - | llvm-dwarfdump - | FileCheck %s
# Based on the following C reproducer:
#

2
test/DebugInfo/MIR/Hexagon/live-debug-values-bundled-entry-values.mir
View File

@ -1,3 +1,5 @@
# We do not support the call site info for the target now, so we use the experimental option (-debug-entry-values).
# RUN: llc -debug-entry-values -run-pass=livedebugvalues -o - %s | FileCheck %s
# Verify that the entry values for the input parameters are inserted after the

2
test/DebugInfo/MIR/SystemZ/call-site-lzer.mir
View File

@ -1,3 +1,5 @@
# We do not support the call site info for the target now, so we use the experimental option (-debug-entry-values).
# RUN: llc -debug-entry-values -start-after=livedebugvalues -o - %s | FileCheck %s
# This test would previously trigger an assertion when trying to describe the

2
test/DebugInfo/MIR/X86/DW_OP_entry_value.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -start-before=livedebugvalues -mtriple=x86_64-apple-darwin -o %t %s -filetype=obj
# RUN: llc -start-before=livedebugvalues -mtriple=x86_64-apple-darwin -o %t %s -filetype=obj
# RUN: llvm-dwarfdump %t | FileCheck %s
#
# int global;

10
test/DebugInfo/MIR/X86/call-site-gnu-vs-dwarf5-attrs.mir
View File

@ -1,14 +1,18 @@
# Test the call site encoding in DWARF5 vs GNU extensions.
#
# RUN: llc -dwarf-version 4 -debugger-tune=gdb -debug-entry-values -filetype=obj \
# RUN: llc -dwarf-version 4 -debugger-tune=gdb -filetype=obj \
# RUN: -mtriple=x86_64-unknown-unknown -start-after=machineverifier -o - %s \
# RUN: | llvm-dwarfdump - | FileCheck %s -check-prefixes=CHECK-GNU
#
# RUN: llc -dwarf-version 5 -debugger-tune=lldb -debug-entry-values -filetype=obj \
# RUN: llc -dwarf-version 5 -debugger-tune=lldb -filetype=obj \
# RUN: -mtriple=x86_64-unknown-unknown -start-after=machineverifier -o - %s \
# RUN: | llvm-dwarfdump - | FileCheck %s -check-prefixes=CHECK-DWARF5
#
# RUN: llc -dwarf-version 5 -debug-entry-values -filetype=obj \
# RUN: llc -dwarf-version 5 -filetype=obj \
# RUN: -mtriple=x86_64-unknown-unknown -start-after=machineverifier -o - %s \
# RUN: | llvm-dwarfdump - | FileCheck %s -check-prefixes=CHECK-DWARF5
#
# RUN: llc -dwarf-version 5 -filetype=obj -debugger-tune=sce -emit-debug-entry-values \
# RUN: -mtriple=x86_64-unknown-unknown -start-after=machineverifier -o - %s \
# RUN: | llvm-dwarfdump - | FileCheck %s -check-prefixes=CHECK-DWARF5
#

4
test/DebugInfo/MIR/X86/dbg-call-site-spilled-arg-multiple-defs.mir
View File

@ -2,10 +2,10 @@
# into the forwarding register has a memory operand and multiple defs.
# The generated code was modified a bit in order to have the scenario.
#
# RUN: llc -debug-entry-values -start-after=machineverifier -filetype=obj %s -o - \
# RUN: llc -start-after=machineverifier -filetype=obj %s -o - \
# RUN: | llvm-dwarfdump - | FileCheck %s --implicit-check-not=DW_TAG_GNU_call_site_parameter
#
# Command: clang -g -O2 -Xclang -femit-debug-entry-values test.c
# Command: clang -g -O2 test.c
# -mllvm -stop-before=machineverifier -o test.mir -c
# extern void callee(int);
# extern int y;

4
test/DebugInfo/MIR/X86/dbg-call-site-spilled-arg.mir
View File

@ -1,9 +1,9 @@
# Check that llvm can describe a call site parameter which resides in a spill slot.
#
# RUN: llc -debug-entry-values -start-after=machineverifier -filetype=obj %s -o - | llvm-dwarfdump - | FileCheck %s
# RUN: llc -start-after=machineverifier -filetype=obj %s -o - | llvm-dwarfdump - | FileCheck %s
#
# Command:
# $ ~/src/builds/llvm-project-master-RA/bin/clang -g -Xclang -femit-debug-entry-values -O2 -c -o spill.o spill.cc -mllvm -stop-before=machineverifier -o spill.mir
# $ ~/src/builds/llvm-project-master-RA/bin/clang -g -O2 -c -o spill.o spill.cc -mllvm -stop-before=machineverifier -o spill.mir
#
# Source:
## extern void callee(int);

2
test/DebugInfo/MIR/X86/dbgcall-site-copy-super-sub.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -start-after=livedebugvalues -filetype=obj %s -o -| llvm-dwarfdump -| FileCheck %s
# RUN: llc -start-after=livedebugvalues -filetype=obj %s -o -| llvm-dwarfdump -| FileCheck %s
# Based on the following reproducer:
#

2
test/DebugInfo/MIR/X86/dbgcall-site-interpretation.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -start-after=machineverifier -filetype=obj %s -o -| llvm-dwarfdump -| FileCheck %s
# RUN: llc -start-after=machineverifier -filetype=obj %s -o -| llvm-dwarfdump -| FileCheck %s
#
# CHECK: DW_TAG_GNU_call_site
# CHECK-NEXT: DW_AT_abstract_origin {{.*}} "foo"

2
test/DebugInfo/MIR/X86/dbgcall-site-lea-interpretation.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -start-after=machineverifier -filetype=obj %s -o -| llvm-dwarfdump -| FileCheck %s
# RUN: llc -start-after=machineverifier -filetype=obj %s -o -| llvm-dwarfdump -| FileCheck %s
# CHECK: DW_TAG_GNU_call_site
# CHECK-NEXT: DW_AT_abstract_origin {{.*}} "foo")
# CHECK-NEXT: DW_AT_low_pc {{.*}}

2
test/DebugInfo/MIR/X86/dbgcall-site-partial-describe.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -start-before=livedebugvalues -filetype=obj -o - %s \
# RUN: llc -start-before=livedebugvalues -filetype=obj -o - %s \
# RUN: | llvm-dwarfdump - | FileCheck %s --implicit-check-not=DW_TAG_GNU_call_site_parameter
--- |

2
test/DebugInfo/MIR/X86/dbgcall-site-reference.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -start-before=livedebugvalues -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
# RUN: llc -start-before=livedebugvalues -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
# Based on the following C++ code:
# struct A { A(A &) {} };

2
test/DebugInfo/MIR/X86/dbgcall-site-reg-shuffle.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -start-before=livedebugvalues -filetype=obj -o - %s \
# RUN: llc -start-before=livedebugvalues -filetype=obj -o - %s \
# RUN: | llvm-dwarfdump - | FileCheck %s --implicit-check-not=DW_TAG_GNU_call_site_parameter
--- |

2
test/DebugInfo/MIR/X86/dbgcall-site-two-fwd-reg-defs.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -O1 -debug-entry-values -start-after=livedebugvalues -filetype=obj %s -o - | llvm-dwarfdump - | FileCheck %s
# RUN: llc -O1 -start-after=livedebugvalues -filetype=obj %s -o - | llvm-dwarfdump - | FileCheck %s
# Based on the following C reproducer:
#

2
test/DebugInfo/MIR/X86/dbginfo-entryvals.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -run-pass=livedebugvalues -march=x86-64 -o - %s | FileCheck %s
# RUN: llc -run-pass=livedebugvalues -march=x86-64 -o - %s | FileCheck %s
#
#extern void fn2(int);
#

4
test/DebugInfo/MIR/X86/debug-call-site-param.mir
View File

@ -2,8 +2,8 @@
# When the debugger tuning is set to gdb, use GNU opcodes.
# For lldb, use the standard DWARF5 opcodes.
# RUN: llc -debug-entry-values -debugger-tune=gdb -filetype=obj -mtriple=x86_64-unknown-unknown -start-after=machineverifier -o - %s | llvm-dwarfdump - | FileCheck %s -check-prefixes=CHECK-GNU
# RUN: llc -debug-entry-values -debugger-tune=lldb -filetype=obj -mtriple=x86_64-unknown-unknown -start-after=machineverifier -o - %s | llvm-dwarfdump - | FileCheck %s -check-prefixes=CHECK-DWARF5
# RUN: llc -debugger-tune=gdb -filetype=obj -mtriple=x86_64-unknown-unknown -start-after=machineverifier -o - %s | llvm-dwarfdump - | FileCheck %s -check-prefixes=CHECK-GNU
# RUN: llc -debugger-tune=lldb -filetype=obj -mtriple=x86_64-unknown-unknown -start-after=machineverifier -o - %s | llvm-dwarfdump - | FileCheck %s -check-prefixes=CHECK-DWARF5
#
# extern void foo(int *a, int b, int c, int d, int e, int f);
# extern int getVal();

2
test/DebugInfo/MIR/X86/entry-value-of-modified-param.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -run-pass=livedebugvalues -march=x86-64 -o - %s | FileCheck %s
# RUN: llc -run-pass=livedebugvalues -march=x86-64 -o - %s | FileCheck %s
#
#extern void fn1 (int, int, int);
#

2
test/DebugInfo/MIR/X86/entry-values-diamond-bbs.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -run-pass=livedebugvalues -march=x86-64 -o - %s | FileCheck %s
# RUN: llc -run-pass=livedebugvalues -march=x86-64 -o - %s | FileCheck %s
#
# The test case was artificially adjusted, in order to make proper diamond basic
# block structure relevant to the debug entry values propagation.

2
test/DebugInfo/MIR/X86/kill-entry-value-after-diamond-bbs.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -run-pass=livedebugvalues -march=x86-64 -o - %s | FileCheck %s
# RUN: llc -run-pass=livedebugvalues -march=x86-64 -o - %s | FileCheck %s
#
# The test case was artificially adjusted, in order to make proper diamond basic
# block structure relevant to the debug entry values clobbering.

2
test/DebugInfo/MIR/X86/multiple-param-dbg-value-entry.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -run-pass=livedebugvalues -march=x86-64 -o - %s| FileCheck %s
# RUN: llc -run-pass=livedebugvalues -march=x86-64 -o - %s| FileCheck %s
#
#int global;
#int foo(int p, int q, int r) {

2
test/DebugInfo/MIR/X86/propagate-entry-value-cross-bbs.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -debug-entry-values -run-pass=livedebugvalues -march=x86-64 -o - %s | FileCheck %s
# RUN: llc -run-pass=livedebugvalues -march=x86-64 -o - %s | FileCheck %s
#
#extern void fn1 (int, int, int);
#__attribute__((noinline))

2
test/DebugInfo/MIR/X86/unreachable-block-call-site.mir
View File

@ -1,4 +1,4 @@
# RUN: llc -mtriple=x86_64-pc-linux -debug-entry-values -run-pass=unreachable-mbb-elimination -o - %s | FileCheck %s
# RUN: llc -mtriple=x86_64-pc-linux -run-pass=unreachable-mbb-elimination -o - %s | FileCheck %s
# Verify that the call site information for the call residing in the eliminated
# block is removed. This test case would previously trigger an assertion when

2
test/DebugInfo/Sparc/entry-value-complex-reg-expr.ll
View File

@ -1,3 +1,5 @@
; We do not support the call site info for the target now, so we use the experimental option (-debug-entry-values).
; RUN: llc -debug-entry-values -filetype=asm -o - %s | FileCheck %s
; Verify that the entry value covers both of the DW_OP_regx pieces. Previously

2
test/DebugInfo/X86/dbg-value-range.ll
View File

@ -56,6 +56,6 @@ declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone
;CHECK-NEXT: .quad [[CLOBBER_OFF]]
;CHECK-NEXT: .short 1 ## Loc expr size
;CHECK-NEXT: .byte 85 ## DW_OP_reg
;CHECK-NEXT: .quad 0
;CHECK: .quad 0
;CHECK-NEXT: .quad 0
!24 = !{i32 1, !"Debug Info Version", i32 3}

6
test/DebugInfo/X86/dbg-value-regmask-clobber.ll
View File

@ -9,8 +9,7 @@
; ASM: movl $1, x(%rip)
; ASM: callq clobber
; ASM-NEXT: [[argc_range_end:.Ltmp[0-9]+]]:
; Previously LiveDebugValues would claim argc was still in ecx after the call.
; ASM-NOT: #DEBUG_VALUE: main:argc
; ASM: #DEBUG_VALUE: main:argc <- [DW_OP_LLVM_entry_value 1] $ecx
; argc is the first debug location.
; ASM: .Ldebug_loc1:
@ -23,7 +22,8 @@
; DWARF: .debug_info contents:
; DWARF: DW_TAG_formal_parameter
; DWARF-NEXT: DW_AT_location ({{0x.*}}
; DWARF-NEXT: [0x0000000000000000, 0x0000000000000013): DW_OP_reg2 RCX)
; DWARF-NEXT: [0x0000000000000000, 0x0000000000000013): DW_OP_reg2 RCX
; DWARF-NEXT: [0x0000000000000013, 0x0000000000000043): DW_OP_GNU_entry_value(DW_OP_reg2 RCX), DW_OP_stack_value
; DWARF-NEXT: DW_AT_name ("argc")
; ModuleID = 't.cpp'

2
test/DebugInfo/X86/dbgcall-site-64-bit-imms.ll
View File

@ -1,4 +1,4 @@
; RUN: llc -O1 -debug-entry-values -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
; RUN: llc -O1 -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
; Verify that the 64-bit call site immediates are not truncated.
;

2
test/DebugInfo/X86/dbgcall-site-zero-valued-imms.ll
View File

@ -1,4 +1,4 @@
; RUN: llc -O3 -debug-entry-values -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
; RUN: llc -O3 -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

6
test/DebugInfo/X86/loclists-dwp.ll
View File

@ -19,10 +19,12 @@
; void b(int i) { asm("" : : : "rdi"); }
; CHECK: DW_AT_location [DW_FORM_sec_offset] (0x00000000
; CHECK-NEXT: DW_LLE_startx_length (0x0000000000000000, 0x0000000000000006): DW_OP_reg5 RDI)
; CHECK-NEXT: DW_LLE_startx_length (0x0000000000000000, 0x0000000000000006): DW_OP_reg5 RDI
; CHECK-NEXT: DW_LLE_startx_length (0x0000000000000001, 0x0000000000000002): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value)
; CHECK: DW_AT_location [DW_FORM_sec_offset] (0x00000000
; CHECK-NEXT: DW_LLE_startx_length (0x0000000000000000, 0x0000000000000000): DW_OP_reg5 RDI)
; CHECK-NEXT: DW_LLE_startx_length (0x0000000000000000, 0x0000000000000000): DW_OP_reg5 RDI
; CHECK-NEXT: DW_LLE_startx_length (0x0000000000000001, 0x0000000000000001): DW_OP_GNU_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value)
target triple = "x86_64-unknown-linux-gnu"

88
test/DebugInfo/X86/no-entry-values-with-O0.ll Normal file
View File

@ -0,0 +1,88 @@
; RUN: llc -O0 -dwarf-version=5 -debugger-tune=lldb -march=x86-64 -filetype=obj < %s \
; RUN: | llvm-dwarfdump - | FileCheck --implicit-check-not=DW_OP_entry_value %s
; RUN: llc -O0 -dwarf-version=5 -debugger-tune=gdb -march=x86-64 -filetype=obj < %s \
; RUN: | llvm-dwarfdump - | FileCheck --implicit-check-not=DW_OP_entry_value %s
; The call-site-params are created iff corresponding DISubprogram contains
; the AllCallsDescribed DIFlag.
; CHECK-NOT: DW_TAG_call_site_param
; Genarated with:
; clang -gdwarf-5 -O0 test.c -S -emit-llvm
;
; ModuleID = 'test.c'
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
; Function Attrs: noinline nounwind optnone uwtable
define dso_local void @fn1(i32 %x, i32 %y) !dbg !7 {
entry:
%x.addr = alloca i32, align 4
%y.addr = alloca i32, align 4
%u = alloca i32, align 4
%a = alloca i32, align 4
store i32 %x, i32* %x.addr, align 4
call void @llvm.dbg.declare(metadata i32* %x.addr, metadata !11, metadata !DIExpression()), !dbg !12
store i32 %y, i32* %y.addr, align 4
call void @llvm.dbg.declare(metadata i32* %y.addr, metadata !13, metadata !DIExpression()), !dbg !14
call void @llvm.dbg.declare(metadata i32* %u, metadata !15, metadata !DIExpression()), !dbg !16
%0 = load i32, i32* %x.addr, align 4, !dbg !16
%1 = load i32, i32* %y.addr, align 4, !dbg !16
%add = add nsw i32 %0, %1, !dbg !16
store i32 %add, i32* %u, align 4, !dbg !16
%2 = load i32, i32* %x.addr, align 4, !dbg !17
%cmp = icmp sgt i32 %2, 1, !dbg !17
br i1 %cmp, label %if.then, label %if.else, !dbg !16
if.then: ; preds = %entry
%3 = load i32, i32* %u, align 4, !dbg !17
%add1 = add nsw i32 %3, 1, !dbg !17
store i32 %add1, i32* %u, align 4, !dbg !17
br label %if.end, !dbg !17
if.else: ; preds = %entry
%4 = load i32, i32* %u, align 4, !dbg !17
%add2 = add nsw i32 %4, 2, !dbg !17
store i32 %add2, i32* %u, align 4, !dbg !17
br label %if.end
if.end: ; preds = %if.else, %if.then
call void @llvm.dbg.declare(metadata i32* %a, metadata !19, metadata !DIExpression()), !dbg !16
store i32 7, i32* %a, align 4, !dbg !16
%5 = load i32, i32* %a, align 4, !dbg !16
call void @fn2(i32 %5), !dbg !16
%6 = load i32, i32* %u, align 4, !dbg !16
%dec = add nsw i32 %6, -1, !dbg !16
store i32 %dec, i32* %u, align 4, !dbg !16
ret void, !dbg !16
}
; Function Attrs: nounwind readnone speculatable willreturn
declare void @llvm.dbg.declare(metadata, metadata, metadata)
declare dso_local void @fn2(i32)
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4, !5}
!llvm.ident = !{!6}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
!1 = !DIFile(filename: "test.c", directory: "/")
!2 = !{}
!3 = !{i32 7, !"Dwarf Version", i32 5}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{i32 1, !"wchar_size", i32 4}
!6 = !{!"clang version 11.0.0"}
!7 = distinct !DISubprogram(name: "fn1", scope: !1, file: !1, line: 5, type: !8, scopeLine: 5, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
!8 = !DISubroutineType(types: !9)
!9 = !{null, !10, !10}
!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!11 = !DILocalVariable(name: "x", arg: 1, scope: !7, file: !1, line: 5, type: !10)
!12 = !DILocation(line: 5, column: 10, scope: !7)
!13 = !DILocalVariable(name: "y", arg: 2, scope: !7, file: !1, line: 5, type: !10)
!14 = !DILocation(line: 5, column: 17, scope: !7)
!15 = !DILocalVariable(name: "u", scope: !7, file: !1, line: 6, type: !10)
!16 = !DILocation(line: 6, column: 7, scope: !7)
!17 = !DILocation(line: 7, column: 7, scope: !18)
!18 = distinct !DILexicalBlock(scope: !7, file: !1, line: 7, column: 7)
!19 = !DILocalVariable(name: "a", scope: !7, file: !1, line: 11, type: !10)

2
test/tools/llvm-dwarfdump/X86/locstats.ll
View File

@ -1,4 +1,4 @@
; RUN: llc -debug-entry-values %s -o - -filetype=obj \
; RUN: llc %s -o - -filetype=obj \
; RUN: | llvm-dwarfdump -statistics - | FileCheck %s
;
; CHECK: "entry value scope bytes covered":5

5
test/tools/llvm-dwarfdump/X86/stats-dbg-callsite-info.ll
View File

@ -1,9 +1,6 @@
; RUN: llc -debug-entry-values %s -o - -filetype=obj \
; RUN: llc %s -o - -filetype=obj \
; RUN: | llvm-dwarfdump -statistics - | FileCheck %s
;
; The LLVM IR file was generated on this source code by using
; option '-femit-debug-entry-values'.
;
; extern void foo(int *a, int b, int c, int d, int e, int f);
; extern int getVal();
;

2
test/tools/llvm-dwarfdump/X86/valid-call-site-GNU-extensions.ll
View File

@ -1,4 +1,4 @@
; RUN: llc -debug-entry-values %s -o - -filetype=obj \
; RUN: llc %s -o - -filetype=obj \
; RUN: | llvm-dwarfdump -verify - | FileCheck %s
;
; CHECK: No errors.

6
test/tools/llvm-locstats/locstats.ll
View File

@ -9,9 +9,9 @@
; LOCSTATS: [10%,20%) 0 0%
; LOCSTATS: [20%,30%) 1 11%
; LOCSTATS: [30%,40%) 0 0%
; LOCSTATS: [40%,50%) 1 11%
; LOCSTATS: [50%,60%) 1 11%
; LOCSTATS: [60%,70%) 1 11%
; LOCSTATS: [40%,50%) 0 0%
; LOCSTATS: [50%,60%) 0 0%
; LOCSTATS: [60%,70%) 3 33%
; LOCSTATS: [70%,80%) 0 0%
; LOCSTATS: [80%,90%) 2 22%
; LOCSTATS: [90%,100%) 1 11%