Rough guess at fixing lldb tests to handle Clang defaulting to DWARFv5

[lldb] Bumb Clang version requirement for TestBasicEntryValues.py to 11

The test only passes with Clang>=11 so adjust the decorator.

Failure output for Clang 10 is:

--- FileCheck trace (code=1) --

[lldb] Bumb Clang version requirement for TestBasicEntryValues.py to 11

The test only passes with Clang>=11 so adjust the decorator.

Failure output for Clang 10 is:

--- FileCheck trace (code=1) ---
FileCheck main.cpp -check-prefix=FUNC1-GNU

FileCheck input:
Address: a.out[0x0000000000401127] (a.out.PT_LOAD[1]..text + 263)
Summary: a.out`func1(int&) + 23 at main.cpp:25:1
Module: file = "functionalities/param_entry_vals/basic_entry_values/BasicEntryValues_GNU.test_dwo/a.out", arch = "x86_64"
CompileUnit: id = {0x00000000}, file = "functionalities/param_entry_vals/basic_entry_values/main.cpp", language = "c++11"
Function: id = {0x400000000000010a}, name = "func1(int&)", mangled = "_Z5func1Ri", range = [0x0000000000401110-0x0000000000401129)
FuncType: id = {0x400000000000010a}, byte-size = 0, decl = main.cpp:13, compiler_type = "void (int &)"
Blocks: id = {0x400000000000010a}, range = [0x00401110-0x00401129)
LineEntry: [0x0000000000401127-0x0000000000401130): functionalities/param_entry_vals/basic_entry_values/main.cpp:25:1
Symbol: id = {0x0000002c}, range = [0x0000000000401110-0x0000000000401129), name="func1(int&)", mangled="_Z5func1Ri"

FileCheck output:

functionalities/param_entry_vals/basic_entry_values/main.cpp:23:16: error: FUNC1-GNU: expected string not found in input
// FUNC1-GNU: name = "sink", type = "int &", location = DW_OP_GNU_entry_value

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[lldb] Skip tests exercising DW_OP_GNU_entry_value with dsymutil

It seems that this opcode needs explicit support in dsymutil. Disable
these tests until that is implemented.

[lldb/DWARF] Add support for pre-standard GNU call site attributes

Summary:
The code changes are very straight-forward -- just handle both DW_AT_GNU
and DW_AT_call versions of all tags and attribute

[lldb/DWARF] Add support for pre-standard GNU call site attributes

Summary:
The code changes are very straight-forward -- just handle both DW_AT_GNU
and DW_AT_call versions of all tags and attributes. There is just one
small gotcha: in the GNU version, DW_AT_low_pc was used both for the
"return pc" and the "call pc" values, depending on whether the tag was
describing a tail call, while the official scheme uses different
attributes for the two things.

Reviewers: vsk, dblaikie

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D80519

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[lldb] Make "inline" tests more configurable

Summary:
This patch adds two new arguments to the MakeInlineTest function. The
main motivation is a follow-up patch I'm preparing, but they seem
generall

[lldb] Make "inline" tests more configurable

Summary:
This patch adds two new arguments to the MakeInlineTest function. The
main motivation is a follow-up patch I'm preparing, but they seem
generally useful.

The first argument allows the user to specify the "build dictionary".
With this argument one can avoid the need to provide a custom Makefile
if all he needs is to override a couple of make variables. This hooks in
neatly into the existing dictionary support for non-inline tests.

The second argument specifies the name of the test. This could be used
to provide better names to the generated test classes, but it's mainly
useful in conjuction with the first argument: now that we can specify a
custom build dictionary, it may sometimes make sense to run the same
test twice with different build configurations. To achieve that, we need
to give the two tests different names, and this argument achieves that.

The usage of the arguments is demonstrated via TestBasicEntryValues.py.

Reviewers: vsk, JDevlieghere

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D80518

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[LLDB] Disable TestBasicEntryValues.py for arm

TestBasicEntryValues.py fails on arm 32 bit. Currently running on silent master here:
http://lab.llvm.org:8014/builders/lldb-arm-ubuntu/

[lldb] Revive TestBasicEntryValuesX86_64

Summary:
This function rewrites the test to be (hopefully) less susceptible to
codegen changes and re-enables it.

The most interesting changes are:
- use an

[lldb] Revive TestBasicEntryValuesX86_64

Summary:
This function rewrites the test to be (hopefully) less susceptible to
codegen changes and re-enables it.

The most interesting changes are:
- use an __attribute__((optnone)) function instead of a volatile asm to
"use" a value. This isn't strictly necessary, but it makes the
function simpler while achieving the same effect.
- use a call to a function with the exact same signature instead of a
volatile asm to "destroy" arguments. This makes the independent of the
ABI, and (together with avoiding the usage of the arguments after the
call) ensures that the compiler has no reason to move the argument
from its initial register (previously we needed to guess where will
the compiler store the arguments).

Reviewers: vsk, djtodoro, dblaikie

Subscribers: lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D79491

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