[ARM] Handling for coprocessor instructions that are undefined starting from ARMv8 (Thumb encodings)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194263 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 202 insertions, 0 deletions

diff --git a/test/MC/Disassembler/ARM/invalid-thumbv8.txt b/test/MC/Disassembler/ARM/invalid-thumbv8.txt
new file mode 100644
index 0000000..4c6b249
--- /dev/null
+++ b/test/MC/Disassembler/ARM/invalid-thumbv8.txt
@@ -0,0 +1,167 @@
+# RUN: not llvm-mc -disassemble %s -show-encoding -triple thumbv8 2>&1 | FileCheck %s
+
+# Coprocessors other than CP10, CP11, CP14 and CP15 are undefined in ARMv8;
+# but in ARMv7, all these instructions are valid
+
+# RUN: llvm-mc -triple thumbv7 -show-encoding -disassemble %s | FileCheck %s --check-prefix=CHECK-V7
+
+[0x00 0xee 0x00 0x01]
+# CHECK-V7: cdp
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x00 0xee 0x00 0x01]
+
+[0x00 0xee 0x00 0x0e]
+# CHECK-V7: cdp
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x00 0xee 0x00 0x0e]
+
+[0x00 0xee 0x00 0x0f]
+# CHECK-V7: cdp
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x00 0xee 0x00 0x0f]
+
+[0x00 0xfe 0x00 0x01]
+# CHECK-V7: cdp2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x00 0xfe 0x00 0x01]
+
+[0x00 0xfe 0x00 0x0e]
+# CHECK-V7: cdp2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x00 0xfe 0x00 0x0e]
+
+[0x00 0xfe 0x00 0x0f]
+# CHECK-V7: cdp2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x00 0xfe 0x00 0x0f]
+
+[0x00 0xee 0x10 0x01]
+# CHECK-V7: mcr
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x00 0xee 0x10 0x01]
+
+[0x00 0xfe 0x10 0x01]
+# CHECK-V7: mcr2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x00 0xfe 0x10 0x01]
+
+[0x00 0xfe 0x10 0x0e]
+# CHECK-V7: mcr2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x00 0xfe 0x10 0x0e]
+
+[0x00 0xfe 0x10 0x0f]
+# CHECK-V7: mcr2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x00 0xfe 0x10 0x0f]
+
+[0x10 0xee 0x10 0x01]
+# CHECK-V7: mrc
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x10 0xee 0x10 0x01]
+
+[0x10 0xfe 0x10 0x01]
+# CHECK-V7: mrc2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x10 0xfe 0x10 0x01]
+
+[0x10 0xfe 0x10 0x0e]
+# CHECK-V7: mrc2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x10 0xfe 0x10 0x0e]
+
+[0x10 0xfe 0x10 0x0f]
+# CHECK-V7: mrc2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x10 0xfe 0x10 0x0f]
+
+[0x40 0xec 0x00 0x01]
+# CHECK-V7: mcrr
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x40 0xec 0x00 0x01]
+
+[0x40 0xfc 0x00 0x01]
+# CHECK-V7: mcrr2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x40 0xfc 0x00 0x01]
+
+[0x40 0xfc 0x00 0x0e]
+# CHECK-V7: mcrr2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x40 0xfc 0x00 0x0e]
+
+[0x40 0xfc 0x00 0x0f]
+# CHECK-V7: mcrr2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x40 0xfc 0x00 0x0f]
+
+[0x50 0xec 0x00 0x01]
+# CHECK-V7: mrrc
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x50 0xec 0x00 0x01]
+
+[0x50 0xfc 0x00 0x0e]
+# CHECK-V7: mrrc2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x50 0xfc 0x00 0x0e]
+
+[0x50 0xfc 0x00 0x0f]
+# CHECK-V7: mrrc2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x50 0xfc 0x00 0x0f]
+
+[0x50 0xfc 0x00 0x01]
+# CHECK-V7: mrrc2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x50 0xfc 0x00 0x01]
+
+[0x80 0xec 0x00 0x01]
+# CHECK-V7: stc
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x80 0xec 0x00 0x01]
+
+[0x80 0xec 0x00 0x0f]
+# CHECK-V7: stc
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x80 0xec 0x00 0x0f]
+
+[0x80 0xfc 0x00 0x01]
+# CHECK-V7: stc2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x80 0xfc 0x00 0x01]
+
+[0x80 0xfc 0x00 0x0e]
+# CHECK-V7: stc2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x80 0xfc 0x00 0x0e]
+
+[0x80 0xfc 0x00 0x0f]
+# CHECK-V7: stc2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x80 0xfc 0x00 0x0f]
+
+[0x90 0xec 0x00 0x01]
+# CHECK-V7: ldc
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x90 0xec 0x00 0x01]
+
+[0x90 0xec 0x00 0x0f]
+# CHECK-V7: ldc
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x90 0xec 0x00 0x0f]
+
+[0x90 0xfc 0x00 0x01]
+# CHECK-V7: ldc2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x90 0xfc 0x00 0x01]
+
+[0x90 0xfc 0x00 0x0e]
+# CHECK-V7: ldc2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x90 0xfc 0x00 0x0e]
+
+[0x90 0xfc 0x00 0x0f]
+# CHECK-V7: ldc2
+# CHECK: invalid instruction encoding
+# CHECK-NEXT: [0x90 0xfc 0x00 0x0f]
+
diff --git a/test/MC/Disassembler/ARM/thumb2-v8.txt b/test/MC/Disassembler/ARM/thumb2-v8.txt
index 04e192f..1b2f095 100644
--- a/test/MC/Disassembler/ARM/thumb2-v8.txt
+++ b/test/MC/Disassembler/ARM/thumb2-v8.txt
@@ -3,3 +3,38 @@
 # CHECK: sevl.w
 0x50 0xbf
 0xaf 0xf3 0x05 0x80
+
+
+# These are the only coprocessor instructions that remain defined in ARMv8
+# (The operations on p10/p11 disassemble into FP/NEON instructions)
+
+0x00 0xee 0x10 0x0e
+# CHECK: mcr p14
+
+0x00 0xee 0x10 0x0f
+# CHECK: mcr p15
+
+0x10 0xee 0x10 0x0e
+# CHECK: mrc p14
+
+0x10 0xee 0x10 0x0f
+# CHECK: mrc p15
+
+0x40 0xec 0x00 0x0e
+# CHECK: mcrr p14
+
+0x40 0xec 0x00 0x0f
+# CHECK: mcrr p15
+
+0x50 0xec 0x00 0x0e
+# CHECK: mrrc p14
+
+0x50 0xec 0x00 0x0f
+# CHECK: mrrc p15
+
+0x80 0xec 0x00 0x0e
+# CHECK: stc p14
+
+0x90 0xec 0x00 0x0e
+# CHECK: ldc p14
+