[BOLT][TEST] Fix building some tests with clang-14 by passing -no-pie

bolt/test/X86/exceptions-args.test

 # Check that we handle GNU_args_size correctly.
 # It is generated for throwing functions with LP that have parameters on stack.
 
-RUN: %clangxx %p/Inputs/exc_args.s -o %t
+RUN: %clangxx %cxxflags %p/Inputs/exc_args.s -o %t
 RUN: llvm-bolt %t -o /dev/null -print-finalized -print-only=main | FileCheck %s
 
 CHECK: Binary Function "main" after finalize-functions
 CHECK:      callq _Z3fooiiiiiiii {{.*}} GNU_args_size = 16
 CHECK:      callq printf@PLT {{.*}} GNU_args_size = 0
 CHECK: End of Function "main"

bolt/test/X86/shrinkwrapping.test

 # Verifies that llvm-bolt updates CFI correctly after
 # shrink-wrapping when optimizing a function without
 # frame pointers.
 
-RUN: %clangxx -O3 %S/Inputs/exc4sw.S -o %t.exe -Wl,-q
+RUN: %clangxx %cxxflags %S/Inputs/exc4sw.S -o %t.exe -Wl,-q
 RUN: llvm-bolt %t.exe -o %t -relocs -frame-opt=all \
 RUN:   -data=%p/Inputs/exc4sw.fdata -reorder-blocks=cache 2>&1 | \
 RUN:   FileCheck %s --check-prefix=CHECK-BOLT
 
 RUN: llvm-objdump --dwarf=frames %t.exe | grep -A20 -e \
 RUN:   `llvm-nm --numeric-sort %t.exe | grep main | tail -n 1 | \
 RUN:    cut -f1 -d' ' | tail -c9` 2>&1 | FileCheck %s --check-prefix=CHECK-INPUT
 

bolt/test/X86/unreachable.test

 # Check unreachable code elimination
 
-RUN: %clangxx %p/Inputs/unreachable.s -o %t.exe
+RUN: %clangxx %cxxflags %p/Inputs/unreachable.s -o %t.exe
 RUN: llvm-bolt %t.exe -o %t \
 RUN:   -reorder-blocks=none -split-functions=1 -eliminate-unreachable \
 RUN:   -funcs=foo -use-gnu-stack -print-cfg -print-finalized \
 RUN:   | FileCheck %s --check-prefix=BOLT
 RUN: llvm-objdump -d %t --print-imm-hex --disassemble-symbols=foo \
 RUN:   --no-show-raw-insn | FileCheck %s
 
 BOLT: BB Layout   : .LBB{{.*}}, .LFT{{.*}}, .Ltmp{{.*}}, .LFT{{.*}}, .Ltmp{{.*}}, .Ltmp{{.*}}, .Ltmp{{.*}}, .LLP{{.*}}, .LFT{{.*}}, .Ltmp{{.*}}, .LFT{{.*}}, .Ltmp{{.*}}, .Ltmp{{.*}}, .Ltmp{{.*}}

bolt/test/X86/vararg.test

 # Check that a function that references a label inside itself,
 # as in the case of vararg handling code generated by GCC 4.5
 # and earlier, is recognized as multi-entry.
 
 REQUIRES: x86_64-linux
 
-RUN: %clangxx %p/../Inputs/vararg.s -o %t -Wl,-q
+RUN: %clangxx %cxxflags %p/../Inputs/vararg.s -o %t -Wl,-q
 RUN: llvm-bolt %t -o /dev/null -print-cfg -print-only=.*printf.* |& FileCheck %s
 
 CHECK: IsSimple    : 0
 CHECK: Entry Point
 CHECK: Entry Point

bolt/test/runtime/X86/exceptions-instrumentation.test

 # Check instrumentation of C++ code with exceptions
 
 REQUIRES: system-linux
 
-RUN: %clangxx %p/Inputs/exceptions_split.cpp -Wl,-q -g -o %t_exc_split
+RUN: %clangxx %cxxflags %p/Inputs/exceptions_split.cpp -Wl,-q -g -o %t_exc_split
 RUN: llvm-bolt %t_exc_split -o %t.exc -instrument -instrumentation-file=%t.fdata
 
 RUN: %t.exc arg1 arg2 arg3
 
 RUN: llvm-bolt %t_exc_split -o %t.exc.bolted -data %t.fdata \
 RUN:   -reorder-blocks=cache+ -reorder-functions=hfsort+ -split-functions=3 \
 RUN:   -split-eh=1 | FileCheck --check-prefix=EXCEPTIONS %s
 EXCEPTIONS-NOT: invalid (possibly stale) profile
 
 # Check that cold symbols are emitted with local binding.
 RUN: llvm-readelf -Ws %t.exc.bolted | FileCheck %s --check-prefix=CHECK-READELF
 CHECK-READELF: FUNC    LOCAL  DEFAULT   {{.*}} main.cold.{{.*}}
 
 RUN: cat %t.fdata | FileCheck --check-prefix=EXCEPTIONS-FDATA %s
 # Check that the printf "catch" ran exactly 10 times
 EXCEPTIONS-FDATA: 1 main {{.*}} 1 _Znwm@PLT 0 0 10

bolt/test/runtime/fptr.test

 # Make sure BOLT correctly updates values based on function pointer.
 
-RUN: %clang %p/Inputs/fptr.c -Wl,-q -o %t.exe
+RUN: %clang %cflags %p/Inputs/fptr.c -Wl,-q -o %t.exe
 RUN: llvm-bolt %t.exe -o %t -lite=0
 RUN: %t | FileCheck %s
 
 CHECK: Global = 0x[[#%x,ADDR:]]
 CHECK-NEXT: Local = 0x[[#ADDR]]
 CHECK-NEXT: Local2 = 0x[[#ADDR]]