[lld] [lld] Sort data chunks before code chunks on ARM64EC. (PR #70722)

[Jacek Caban via llvm-commits]

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@@ -110,6 +110,40 @@ DISASMM-NEXT:                 ...
 DISASMM-NEXT: 180002ffe: 00 00                        addb    %al, (%rax)
 DISASMM-NEXT: 180003000: b8 06 00 00 00               movl    $0x6, %eax
 
+RUN: lld-link -out:testdm.dll -machine:arm64ec arm64ec-func-sym.obj x86_64-func-sym.obj codemap.obj \
+RUN:          data-sec.obj loadconfig-arm64ec.obj -dll -noentry -merge:.testdata=.text -merge:.rdata=test
+
+RUN: llvm-readobj --coff-load-config testdm.dll | FileCheck -check-prefix=CODEMAPDM %s
+CODEMAPDM:      CodeMap [
+CODEMAPDM-NEXT:     0x2000 - 0x2008  ARM64EC
+CODEMAPDM-NEXT:     0x3000 - 0x3006  X64
+CODEMAPDM-NEXT:     0x5200 - 0x5208  ARM64EC
+CODEMAPDM-NEXT:     0x6000 - 0x6006  X64
+CODEMAPDM-NEXT: ]
+
+Merging code data into code sections causes data to be separated from the code when sorting chunks.
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cjacek wrote:

It's indeed a typo, I meant "data section". I pushed a fixup, thanks for reviews!

https://github.com/llvm/llvm-project/pull/70722