[clang] [llvm] [RISCV] Add Support of RISCV Zibimm Experimental Extension (PR #127463)

[Craig Topper via cfe-commits]

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@@ -0,0 +1,299 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=riscv32 -mattr=+experimental-zibimm -verify-machineinstrs < %s \
+; RUN:     | FileCheck -check-prefix=RV32I-ZIBIMM %s
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topperc wrote:

Use a common check prefix for RV32 and RV64 since the code is identical for all cases.

https://github.com/llvm/llvm-project/pull/127463