[clang] [llvm] [RISCV] Add Zilsd and Zclsd Extensions (PR #131094)

[Sudharsan Veeravalli via llvm-commits]

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+# RUN: not llvm-mc -triple=riscv32 -mattr=+zclsd < %s 2>&1 | FileCheck %s
+
+## GPRPairC
+c.ld t1, 4(sp) # CHECK: :[[@LINE]]:6: error: invalid operand for instruction
+c.sd s2, 4(sp) # CHECK: :[[@LINE]]:6: error: invalid operand for instruction
+
+## GPRPairNoX0
+c.ldsp  x0, 4(sp) # CHECK: :[[@LINE]]:9: error: invalid operand for instruction
+c.ldsp  zero, 4(sp) # CHECK: :[[@LINE]]:9: error: invalid operand for instruction
+
+## uimm9_lsb000
+c.ldsp t1, 512(sp) # CHECK: :[[@LINE]]:12: error: immediate must be a multiple of 8 bytes in the range [0, 504]
+c.sdsp t1, -8(sp) # CHECK: :[[@LINE]]:12: error: immediate must be a multiple of 8 bytes in the range [0, 504]
+## uimm8_lsb000
+c.ld  s0, -8(sp) # CHECK: :[[@LINE]]:11: error: immediate must be a multiple of 8 bytes in the range [0, 248]
+c.sd  s0, 256(sp) # CHECK: :[[@LINE]]:11: error: immediate must be a multiple of 8 bytes in the range [0, 248]
+
+# Invalid register names
+c.ld a1, 4(sp) # CHECK: :[[@LINE]]:6: error: register must be even
+c.sd a3, 4(sp) # CHECK: :[[@LINE]]:6: error: register must be even
+c.ldsp ra, 4(sp) # CHECK: :[[@LINE]]:8: error: register must be even
+c.ldsp t0, 4(sp) # CHECK: :[[@LINE]]:8: error: register must be even
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svs-quic wrote:

Nit: Please add a new line at the end of the file

https://github.com/llvm/llvm-project/pull/131094