[JITLink][X86] Rename X86 test directory to x86-64, update test names.

Tests in test/ExecutionEngine/JITLink/X86 were for x86-64 only (never i386) so
it makes sense to name the test directory x86-64, and drop x86-64 from the
individual test names.

llvm/test/ExecutionEngine/JITLink/X86/MachO_x86-64_was_private_extern.test

@@ -1,9 +0,0 @@
-# RUN: llvm-jitlink -noexec %S/Inputs/MachO_x86-64_was_private_extern.o
-#
-# Perform a no-exec link of MachO_x86-64_was_private_extern.o and verify that
-# it does not generate any errors despite the presence of a 'was private
-# extern' symbol (N_PEXT set, N_EXT unset).
-#
-# The test case for this is a relocatable object file rather than assembly as
-# objects must be run through ld64's 'ld -r' mode to produce them and we can't
-# assume that that is available everywhere.

llvm/test/ExecutionEngine/JITLink/x86-64/ELF_common_var.s

@@ -1,16 +1,17 @@
 # RUN: rm -rf %t && mkdir -p %t
 # RUN: llvm-mc -triple=x86_64-unknown-linux -relax-relocations=false -position-independent -filetype=obj -o %t/elf_common.o %s
 # RUN: llvm-jitlink -entry=load_common -noexec -check %s %t/elf_common.o
+#
+# Check that common variable GOT entry is synthesized correctly.
 
         .text
-        .file   "elf_common.c"
         .globl  load_common
         .p2align        4, 0x90
         .type   load_common,@function
 
 load_common:
-# Check that common variable GOT entry is synthesized correctly. In order to
-# prevent the optimizer from relaxing the edge, we use a movl instruction.
+# In order to prevent the optimizer from relaxing the edge, we use a movl
+# instruction.
 # jitlink-check: decode_operand(load_common, 4) = \
 # jitlink-check:   got_addr(elf_common.o, common_data) - next_pc(load_common)
 # jitlink-check: *{8}(got_addr(elf_common.o, common_data)) = common_data

llvm/test/ExecutionEngine/JITLink/x86-64/ELF_got_plt_optimizations.s

@@ -1,10 +1,10 @@
 # RUN: rm -rf %t && mkdir -p %t
 # RUN: llvm-mc -triple=x86_64-unknown-linux -position-independent \
-# RUN:     -filetype=obj -o %t/elf_sm_pic_reloc.o %s
+# RUN:     -filetype=obj -o %t/elf_got_plt_opt.o %s
 # RUN: llvm-jitlink -noexec \
 # RUN:     -slab-allocate 100Kb -slab-address 0xfff00000 -slab-page-size 4096 \
 # RUN:     -abs extern_in_range32=0xffe00000 \
-# RUN:     -check %s %t/elf_sm_pic_reloc.o
+# RUN:     -check %s %t/elf_got_plt_opt.o
 #
 
 

llvm/test/ExecutionEngine/JITLink/x86-64/MachO_ehframe.test

@@ -1,5 +1,6 @@
-# RUN: llvm-jitlink -noexec -abs __ZTIi=0x1 -abs ___gxx_personality_v0=0x2 %S/Inputs/MachO_x86-64_ehframe.o
+# RUN: llvm-jitlink -noexec -abs __ZTIi=0x1 -abs ___gxx_personality_v0=0x2 \
+# RUN:   %S/Inputs/MachO_ehframe.o
 #
-# Perform a no-exec link of MachO_x86-64_ehframe and verify that it does not
+# Perform a no-exec link of MachO_ehframe.o and verify that it does not
 # generate any errors despite the last FDE referring to the first CIE (rather
 # than the most recent).

llvm/test/ExecutionEngine/JITLink/x86-64/MachO_self_relocation.test

@@ -1,4 +1,4 @@
-# RUN: llvm-mc -triple=x86_64-apple-macosx10.9 -filetype=obj -o %t %S/Inputs/x86-64_self_relocation.s
+# RUN: llvm-mc -triple=x86_64-apple-macosx10.9 -filetype=obj -o %t %S/Inputs/MachO_self_relocation.s
 # RUN: llvm-jitlink -noexec -show-graphs='.*' %t 2>&1 | \
 # RUN:   FileCheck -check-prefix=WITHOUT %s
 # RUN: llvm-jitlink -noexec -show-graphs='.*' -add-self-relocations %t 2>&1 | \

llvm/test/ExecutionEngine/JITLink/x86-64/MachO_self_relocation_exec.test

@@ -1,4 +1,4 @@
-# RUN: llvm-mc -triple=x86_64-apple-macosx10.9 -filetype=obj -o %t %S/Inputs/x86-64_self_relocation.s
+# RUN: llvm-mc -triple=x86_64-apple-macosx10.9 -filetype=obj -o %t %S/Inputs/MachO_self_relocation.s
 # RUN: llvm-jitlink -show-graphs='.*' %t
 # RUN: llvm-jitlink -show-graphs='.*' -add-self-relocations %t
 

llvm/test/ExecutionEngine/JITLink/x86-64/MachO_was_private_extern.test

@@ -0,0 +1,9 @@
+# RUN: llvm-jitlink -noexec %S/Inputs/MachO_was_private_extern.o
+#
+# Perform a no-exec link of MachO_was_private_extern.o and verify that it does
+# not generate any errors despite the presence of a 'was private extern' symbol
+# (N_PEXT set, N_EXT unset).
+#
+# The test case for this is a relocatable object file rather than assembly as
+# objects must be run through ld64's 'ld -r' mode to produce them and we can't
+# assume that that is available everywhere.