Tests for: D100299: Be lazier about loading .dwo files

[jankratochvil]

Summary

D100299

[Eric]

Thank you for helping me with this! Do you want me to merge these changes into my own CL or do you want to check this in yourself?

Instead of echoing into .c files, can we write the tests as .c files? It seems to be a common pattern to use a single source as two sources by compiling twice with different -D flags and then linking; see for example Shell/SymbolFile/DWARF/x86/dwarf5-partial-index.cpp

[jankratochvil]

@Eric yes, it would be better to merge it with your D100299.

In D106194#2894795, @Eric wrote:

Instead of echoing into .c files, can we write the tests as .c files? It seems to be a common pattern to use a single source as two sources by compiling twice with different -D flags and then linking;

I agree, thanks for catching that.

[jankratochvil]

It has been merged to D100299.

lldb/test/Shell/ObjectFile/ELF/split-lazy-load.test

+# RUN: rm -rf %t
+# RUN: mkdir %t
+# RUN: echo 'int main(void) { return 0; }' >%t/1.c
+# RUN: echo 'int x;' >%t/2.c
+# RUN: %clangxx_host -gdwarf-5 -gsplit-dwarf -gpubnames -o %t/main %t/1.c %t/2.c
+# RUN: %lldb -b %t/main -o 'log enable ll''db object' -o 'b main' | FileCheck %s
+
+# CHECK: (lldb) b main
+# CHECK-NOT: /2.dwo,
+# CHECK: /1.dwo,
+# CHECK-NOT: /2.dwo,

lldb/test/Shell/ObjectFile/ELF/split-optimized.test

+# RUN: rm -rf %t
+# RUN: mkdir %t
+# RUN: cd %t
+# RUN: echo 'int main(void) { return 0; }' >appleopt.c
+# RUN: %clangxx_host -gdwarf-5 -glldb -gsplit-dwarf -O3 -o appleopt.o appleopt.c
+# RUN: llvm-dwarfdump appleopt.o | FileCheck %s --check-prefix DWARFDUMP_O
+# RUN: llvm-dwarfdump appleopt.dwo | FileCheck %s --check-prefix DWARFDUMP_DWO
+# RUN: %lldb -b -o 'script lldb.SBDebugger.Create().CreateTarget("appleopt.o").FindFunctions("main",lldb.eFunctionNameTypeAuto).GetContextAtIndex(0).GetFunction().GetIsOptimized()' | FileCheck %s
+
+# DWARFDUMP_O-NOT: DW_AT_APPLE_optimized
+#
+# DWARFDUMP_DWO: DW_TAG_compile_unit
+# DWARFDUMP_DWO-NOT: DW_TAG_
+# DWARFDUMP_DWO: DW_AT_APPLE_optimized  (true)
+
+# CHECK: (lldb) script lldb.SBDebugger.Create()
+# CHECK-NEXT: True