[AMDGPU][True16][MC][NFC] add true16/fake16 test for gfx12 vop3c/3cx (#122316)

This is a NFC. Duplicate mc test file for gfx12 vop3c/vop3cx to
true16/fake16 mode and update it with +real-true16/-real-true16 flag.

This is for the upcoming true16 changes

Author: broxigarchen

llvm/test/MC/AMDGPU/gfx12_asm_vop3c_dpp16-fake16.s

@@ -1,8 +1,8 @@
 // NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py UTC_ARGS: --version 5
-// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize32 -show-encoding %s | FileCheck --check-prefixes=GFX12,W32 %s
-// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize64 -show-encoding %s | FileCheck --check-prefixes=GFX12,W64 %s
-// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize32 -filetype=null %s 2>&1 | FileCheck --check-prefix=W32-ERR --implicit-check-not=error: %s
-// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize64 -filetype=null %s 2>&1 | FileCheck --check-prefix=W64-ERR --implicit-check-not=error: %s
+// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize32,+real-true16 -show-encoding %s | FileCheck --check-prefixes=GFX12,W32 %s
+// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize64,+real-true16 -show-encoding %s | FileCheck --check-prefixes=GFX12,W64 %s
+// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize32,+real-true16 -filetype=null %s 2>&1 | FileCheck --check-prefix=W32-ERR --implicit-check-not=error: %s
+// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize64,+real-true16 -filetype=null %s 2>&1 | FileCheck --check-prefix=W64-ERR --implicit-check-not=error: %s
 
 v_cmp_class_f16_e64_dpp s5, v1, v2 quad_perm:[3,2,1,0]
 // W32: v_cmp_class_f16_e64_dpp s5, v1, v2 quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0x05,0x00,0x7d,0xd4,0xfa,0x04,0x02,0x00,0x01,0x1b,0x00,0xff]

llvm/test/MC/AMDGPU/gfx12_asm_vop3c_dpp16.s

@@ -1,8 +1,8 @@
 // NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py UTC_ARGS: --version 5
-// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize32 -show-encoding %s | FileCheck --check-prefixes=GFX12,W32 %s
-// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize64 -show-encoding %s | FileCheck --check-prefixes=GFX12,W64 %s
-// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize32 -filetype=null %s 2>&1 | FileCheck --check-prefix=W32-ERR --implicit-check-not=error: %s
-// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize64 -filetype=null %s 2>&1 | FileCheck --check-prefix=W64-ERR --implicit-check-not=error: %s
+// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize32,+real-true16 -show-encoding %s | FileCheck --check-prefixes=GFX12,W32 %s
+// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize64,+real-true16 -show-encoding %s | FileCheck --check-prefixes=GFX12,W64 %s
+// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize32,+real-true16 -filetype=null %s 2>&1 | FileCheck --check-prefix=W32-ERR --implicit-check-not=error: %s
+// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize64,+real-true16 -filetype=null %s 2>&1 | FileCheck --check-prefix=W64-ERR --implicit-check-not=error: %s
 
 v_cmp_class_f16_e64_dpp s5, v1, v2 dpp8:[7,6,5,4,3,2,1,0]
 // W32: v_cmp_class_f16_e64_dpp s5, v1, v2 dpp8:[7,6,5,4,3,2,1,0] ; encoding: [0x05,0x00,0x7d,0xd4,0xe9,0x04,0x02,0x00,0x01,0x77,0x39,0x05]

llvm/test/MC/AMDGPU/gfx12_asm_vop3c_dpp8-fake16.s

@@ -1,6 +1,6 @@
 // NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py UTC_ARGS: --version 5
-// RUN: llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize32 -show-encoding %s | FileCheck --check-prefixes=GFX12 %s
-// RUN: llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize64 -show-encoding %s | FileCheck --check-prefixes=GFX12 %s
+// RUN: llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize32,+real-true16 -show-encoding %s | FileCheck --check-prefixes=GFX12 %s
+// RUN: llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize64,+real-true16 -show-encoding %s | FileCheck --check-prefixes=GFX12 %s
 
 v_cmpx_class_f16_e64 v1, v2
 // GFX12: v_cmpx_class_f16_e64 v1, v2             ; encoding: [0x7e,0x00,0xfd,0xd4,0x01,0x05,0x02,0x00]

llvm/test/MC/AMDGPU/gfx12_asm_vop3c_dpp8.s

@@ -1,6 +1,6 @@
 // NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py UTC_ARGS: --version 5
-// RUN: llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize32 -show-encoding %s | FileCheck --check-prefixes=GFX12 %s
-// RUN: llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize64 -show-encoding %s | FileCheck --check-prefixes=GFX12 %s
+// RUN: llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize32,+real-true16 -show-encoding %s | FileCheck --check-prefixes=GFX12 %s
+// RUN: llvm-mc -triple=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize64,+real-true16 -show-encoding %s | FileCheck --check-prefixes=GFX12 %s
 
 v_cmpx_class_f16_e64_dpp v1, v2 quad_perm:[3,2,1,0]
 // GFX12: v_cmpx_class_f16_e64_dpp v1, v2 quad_perm:[3,2,1,0] row_mask:0xf bank_mask:0xf ; encoding: [0x7e,0x00,0xfd,0xd4,0xfa,0x04,0x02,0x00,0x01,0x1b,0x00,0xff]