[llvm] [MC][RISCV] Check hasEmitNops before call shouldInsertExtraNopBytesForCodeAlign (PR #77236)

[Fangrui Song via llvm-commits]

================
@@ -0,0 +1,29 @@
+# RUN: llvm-mc --filetype=obj --triple=riscv64 --mattr=+relax %s \
+# RUN:     | llvm-readobj -r - | FileCheck --check-prefixes=CHECK,RELAX %s
+# RUN: llvm-mc --filetype=obj --triple=riscv64 --mattr=-relax %s \
+# RUN:     | llvm-readobj -r - | FileCheck %s
+
+.section ".dummy", "a"
+.L1:
+  call func
+.p2align 3
+.L2:
+.dword .L2 - .L1
----------------
MaskRay wrote:

Keep just `.dword .L2 - .L1` and remove other data directives to make the example minimum.

https://github.com/llvm/llvm-project/pull/77236