[llvm] [RISCV] Add support for vendor relocations on Xqci extensions (PR #135400)

[Fangrui Song via llvm-commits]

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@@ -2,31 +2,37 @@
 # RUN:     | FileCheck -check-prefix=INSTR -check-prefix=FIXUP %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+experimental-xqcili %s -o %t.o
 # RUN: llvm-readobj -r %t.o | FileCheck -check-prefix=RELOC %s
+# RUN: llvm-readelf -s %t.o | FileCheck -check-prefix=VENDORSYM %s
 
 # Check prefixes:
 # RELOC - Check the relocation in the object.
 # FIXUP - Check the fixup on the instruction.
 # INSTR - Check the instruction is handled properly by the ASMPrinter.
+# VENDORSYM - Check the vendor symbol.
 
 .text
 
 qc.li x4, %qc.abs20(foo)
+# RELOC: R_RISCV_VENDOR QUALCOMM 0x0
 # RELOC: R_RISCV_CUSTOM192 foo 0x0
 # INSTR: qc.li tp, %qc.abs20(foo)
 # FIXUP: fixup A - offset: 0, value: %qc.abs20(foo), kind: fixup_riscv_qc_abs20_u
 
 qc.e.li x5, foo
+# RELOC: R_RISCV_VENDOR QUALCOMM 0x0
 # RELOC: R_RISCV_CUSTOM194 foo 0x0
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MaskRay wrote:

`-NEXT` is needed to check that the two relocations are consecutive

https://github.com/llvm/llvm-project/pull/135400