[lld] [lld][ELF] Add `-plugin-opt=time-trace=` as an alias of `--time-trace=` (PR #106803)

[Fangrui Song via llvm-commits]

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@@ -0,0 +1,21 @@
+; REQUIRES: x86
+; RUN: llvm-as %s -o %t.o
+; Print to a specific file
+; RUN: ld.lld -m elf_x86_64 -shared %t.o -o %t.so --plugin-opt=time-trace=%t.trace.json
+; RUN: FileCheck --input-file=%t.trace.json %s
+; Print to stdout
+; RUN: ld.lld -m elf_x86_64 -shared %t.o -o %t.so --plugin-opt=time-trace=- | \
+; RUN: FileCheck %s
+
+target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+; Make sure the content is correct
+; CHECK: "traceEvents"
+; Make sure LTO events are recorded
+; CHECK-SAME: "name":"LTO"
+
+define void @foo() {
+  ret void
+}
+
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MaskRay wrote:

no trailing blank lines

https://github.com/llvm/llvm-project/pull/106803