[ELF,test] Add env LLD_IN_TEST=1 to make some tests work if RUN_LLD_MAIN_TWICE

Author: MaskRay

lld/test/ELF/invalid/bad-reloc-target.test

@@ -51,7 +51,7 @@ Symbols:
 ## Relocation refers to a symbol with index larger than
 ## symbol table size. Check we report it.
 # RUN: yaml2obj --docnum=3 %s -o %t2.o
-# RUN: not ld.lld %t2.o -o /dev/null 2>&1 | FileCheck %s --check-prefix=ERR3
+# RUN: env LLD_IN_TEST=1 not ld.lld %t2.o -o /dev/null 2>&1 | FileCheck %s --check-prefix=ERR3
 # ERR3: error: {{.*}}.o: invalid symbol index
 
 --- !ELF

lld/test/ELF/lto/cache-warnings.ll

@@ -1,4 +1,5 @@
 ; REQUIRES: x86, shell
+; UNSUPPORTED: main-run-twice
 
 ; RUN: opt -module-hash -module-summary %s -o %t.o
 ; RUN: opt -module-hash -module-summary %p/Inputs/cache.ll -o %t2.o

lld/test/ELF/lto/ltopasses-custom.ll

@@ -24,13 +24,13 @@ define void @barrier() {
 ; ATOMIC-NEXT: ret void
 
 ; Check that invalid passes are rejected gracefully.
-; RUN: not --crash ld.lld -m elf_x86_64 %t.o -o /dev/null \
+; RUN: env LLD_IN_TEST=1 not --crash ld.lld -m elf_x86_64 %t.o -o /dev/null \
 ; RUN:   --lto-newpm-passes=iamnotapass -shared 2>&1 | \
 ; RUN:   FileCheck %s --check-prefix=INVALID
 ; INVALID: unable to parse pass pipeline description 'iamnotapass': unknown pass name 'iamnotapass'
 
 ; Check that invalid AA pipelines are rejected gracefully.
-; RUN: not --crash ld.lld -m elf_x86_64 %t.o -o /dev/null \
+; RUN: env LLD_IN_TEST=1 not --crash ld.lld -m elf_x86_64 %t.o -o /dev/null \
 ; RUN:   --lto-newpm-passes=globaldce --lto-aa-pipeline=patatino \
 ; RUN:   -shared 2>&1 | \
 ; RUN:   FileCheck %s --check-prefix=INVALIDAA

lld/test/ELF/lto/verify-invalid.ll

@@ -1,10 +1,10 @@
 ; REQUIRES: x86
 ; RUN: llvm-as %s -o %t.o
-; RUN: ld.lld %t.o -o %t2 --lto-debug-pass-manager \
+; RUN: env LLD_IN_TEST=1 ld.lld %t.o -o %t2 --lto-debug-pass-manager \
 ; RUN:   2>&1 | FileCheck -check-prefix=DEFAULT-NPM %s
-; RUN: ld.lld %t.o -o %t2 --lto-debug-pass-manager \
+; RUN: env LLD_IN_TEST=1 ld.lld %t.o -o %t2 --lto-debug-pass-manager \
 ; RUN:   -disable-verify 2>&1 | FileCheck -check-prefix=DISABLE-NPM %s
-; RUN: ld.lld %t.o -o %t2 --lto-debug-pass-manager \
+; RUN: env LLD_IN_TEST=1 ld.lld %t.o -o %t2 --lto-debug-pass-manager \
 ; RUN:   --plugin-opt=disable-verify 2>&1 | FileCheck -check-prefix=DISABLE-NPM %s
 
 target triple = "x86_64-unknown-linux-gnu"