[ELF][test] Rename SHF_LINK_ORDER related "metadata" to "linkorder"

Test cleanups.

(cherry picked from commit b305b8a)

Author: MaskRay

lld/test/ELF/gc-sections-metadata-err.s renamed to lld/test/ELF/gc-sections-linkorder-err.s

@@ -0,0 +1,32 @@
+# REQUIRES: x86
+
+# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
+# RUN: ld.lld --gc-sections --print-gc-sections %t.o -o /dev/null | FileCheck %s --implicit-check-not=removing
+
+# CHECK: removing unused section {{.*}}.o:(.foo2)
+# CHECK: removing unused section {{.*}}.o:(bar2)
+# CHECK: removing unused section {{.*}}.o:(.zed2)
+
+.global _start
+_start:
+.quad .foo1
+
+.section .foo1,"a"
+.quad 0
+
+.section .foo2,"a"
+.quad 0
+
+.section bar1,"ao",@progbits,.foo1
+.quad .zed1
+.quad .foo1
+
+.section bar2,"ao",@progbits,.foo2
+.quad .zed2
+.quad .foo2
+
+.section .zed1,"a"
+.quad 0
+
+.section .zed2,"a"
+.quad 0

lld/test/ELF/gc-sections-linkorder.s

@@ -1,16 +1,13 @@
 # REQUIRES: x86
-# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
-# RUN: ld.lld --gc-sections %t.o -o %t
-# RUN: llvm-objdump -section-headers %t | FileCheck %s
 
-# CHECK: .foo
-# CHECK: .bar
-# CHECK: .zed
+# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
+# RUN: ld.lld --gc-sections --print-gc-sections %t.o -o /dev/null | count 0
 
 .globl _start
 _start:
 .quad .foo
 
+## .foo is retained, so sections linking to it are retained as well.
 .section .foo,"a"
 .quad 0
 .section .bar,"ao",@progbits,.foo

lld/test/ELF/gc-sections-metadata2.s renamed to lld/test/ELF/gc-sections-linkorder2.s

@@ -0,0 +1,11 @@
+# REQUIRES: x86
+
+# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
+# RUN: not ld.lld %t.o -o /dev/null 2>&1 | FileCheck %s
+
+# CHECK: error: a section .foo with SHF_LINK_ORDER should not refer a non-regular section: {{.*}}.o:(.merge)
+
+.section .merge,"aM",@progbits,8
+.quad 0
+.section .foo,"ao",@progbits,.merge
+.quad 0

lld/test/ELF/gc-sections-metadata.s

@@ -4,8 +4,8 @@
 # RUN: not ld.lld %t.o -o /dev/null 2>&1 | FileCheck %s
 
 ## Check we do not crash and report proper errors.
-# CHECK: error: a section .bar with SHF_LINK_ORDER should not refer a non-regular section: {{.*}}section-metadata-err2.s.tmp.o:(.foo)
-# CHECK: error: a section .bar with SHF_LINK_ORDER should not refer a non-regular section: {{.*}}section-metadata-err2.s.tmp.o:(.foo)
+# CHECK:      error: a section .bar with SHF_LINK_ORDER should not refer a non-regular section: {{.*}}.o:(.foo)
+# CHECK-NEXT: error: a section .bar with SHF_LINK_ORDER should not refer a non-regular section: {{.*}}.o:(.foo)
 
 .section .foo,"aM",@progbits,8
 .quad 0

lld/test/ELF/linkerscript/discard-section-metadata.s renamed to lld/test/ELF/linkerscript/discard-linkorder.s

@@ -4,7 +4,7 @@
 # RUN: not ld.lld %t.o -o /dev/null 2>&1 | FileCheck %s
 
 # CHECK:      error: incompatible section flags for .bar
-# CHECK-NEXT: >>> {{.*}}section-metadata-err3.s.tmp.o:(.bar): 0x2
+# CHECK-NEXT: >>> {{.*}}.o:(.bar): 0x2
 # CHECK-NEXT: >>> output section .bar: 0x82
 
 .section .foo,"a",@progbits