[MC][NFC] Ensure tests that intended to cover compact unwind code paths do so

[int3]

Summary

These two tests were intended to cover the CU code paths, but invoked
llvm-mc using a generic "darwin" platform. However, MC only attempts to
emit CU for macos >= 10.6 [1]. Thus we adjust the tests accordingly.

compact-unwind-cfi_def_cfa.s was added in 2fca51d3b45efcf00ffcfe2879cd6d7d98c26258
fp-setup-macho.s was added in 03ffa797ad4fe8f85da532aa3f687841a60b4c0c

[1]: https://github.com/llvm/llvm-project/blob/16c93aaa4a955676fe05f876bd036719a1b14b2d/llvm/lib/MC/MCObjectFileInfo.cpp#L43

[smeenai]

LGTM

I thought macosx was more common in triples than macos, but it doesn't mater very much if the latter works :)

[int3]

Thanks!

[thakis]

In D124126#3463246, @smeenai wrote:

LGTM

I thought macosx was more common in triples than macos, but it doesn't mater very much if the latter works :)

The OS used to be called "Mac OS X", but now it's called "macOS". Hence, "macosx" is the old spelling, and it's more common because it's been around longer. But "macos" is what matches the current product name.

llvm/test/MC/X86/compact-unwind-cfi_def_cfa.s

-// RUN: llvm-mc -triple x86_64-apple-darwin -filetype=obj %s -o - | llvm-readobj --sections - | FileCheck %s
+// RUN: llvm-mc -triple x86_64-apple-macosx10.6 -filetype=obj %s -o - | llvm-readobj --sections - | FileCheck %s
 
 // We were trying to generate compact unwind info for assembly like this.
 // The .cfi_def_cfa directive, however, throws a wrench into that and was
 // causing an llvm_unreachable() failure. Make sure the assembler can handle
 // the input. The actual eh_frames created using these directives are checked
 // elsewhere. This test is a simpler "does the code assemble" check.
 
 // rdar://15406518
.cfi_startproc
   RestoreRegisters
   ret
  .cfi_endproc
 
 // CHECK: Section {
 // CHECK:   Index: 1
 // CHECK:   Name: __eh_frame (5F 5F 65 68 5F 66 72 61 6D 65 00 00 00 00 00 00)
 // CHECK:   Segment: __TEXT (5F 5F 54 45 58 54 00 00 00 00 00 00 00 00 00 00)
-// CHECK:   Address: 0x70
+// CHECK:   Address:
 // CHECK:   Size: 0x40
-// CHECK:   Offset: 480
+// CHECK:   Offset:
 // CHECK:   Alignment: 3
 // CHECK:   RelocationOffset: 0x0
 // CHECK:   RelocationCount: 0
 // CHECK:   Type: Coalesced (0xB)
 // CHECK:   Attributes [ (0x680000)
 // CHECK:     LiveSupport (0x80000)
 // CHECK:     NoTOC (0x400000)
 // CHECK:     StripStaticSyms (0x200000)
 // CHECK:   ]
 // CHECK:   Reserved1: 0x0
 // CHECK:   Reserved2: 0x0
 // CHECK: }

llvm/test/MC/X86/fp-setup-macho.s

-// RUN: llvm-mc -triple x86_64-apple-macho -filetype obj -o - %s | llvm-readobj --sections - | FileCheck %s
+// RUN: llvm-mc -triple x86_64-apple-macosx10.6 -filetype obj -o - %s | llvm-readobj --sections - | FileCheck %s
 
 _label:
   .cfi_startproc
   .cfi_def_cfa_register rsp
   .cfi_endproc
 
 // CHECK: Section {
 // CHECK:   Name: __eh_frame
 // CHECK: }