[lld] [LLD] Merge .hexagon.attributes sections (PR #148098)

[Fangrui Song via llvm-commits]

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+# REQUIRES: hexagon
+
+# RUN: rm -rf %t && split-file %s %t && cd %t
+# RUN: llvm-mc -filetype=obj -triple=hexagon-unknown-elf a.s -o a.o
+# RUN: ld.lld -e 0 a.o -o out 2>&1 | count 0
+# RUN: llvm-readelf -S -l --arch-specific out | FileCheck %s --check-prefixes=HDR,CHECK
+# RUN: ld.lld -e 0 a.o a.o -o out1 2>&1 | count 0
+# RUN: llvm-readobj --arch-specific out1 | FileCheck %s
+# RUN: ld.lld -r a.o a.o -o out1 2>&1 | count 0
+# RUN: llvm-readobj --arch-specific out1 | FileCheck %s
+
+# RUN: llvm-mc -filetype=obj -triple=hexagon-unknown-elf b.s -o b.o
+# RUN: llvm-mc -filetype=obj -triple=hexagon-unknown-elf c.s -o c.o
+# RUN: llvm-mc -filetype=obj -triple=hexagon-unknown-elf d.s -o d.o
+# RUN: ld.lld a.o b.o c.o -o out2
+# RUN: llvm-readobj --arch-specific out2 | FileCheck %s --check-prefix=CHECK2
+# RUN: ld.lld a.o b.o c.o d.o -o out3
+# RUN: llvm-readobj --arch-specific out3 | FileCheck %s --check-prefix=CHECK3
+
+# HDR:      Name              Type             Address          Off    Size   ES Flg Lk Inf Al
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MaskRay wrote:

Still misaligned

https://github.com/llvm/llvm-project/pull/148098