@ RUN: llvm-mc -triple thumbv7 %s -o - -show-encoding 2>&1 | FileCheck %s --check-prefix=CHECK-VALID @ RUN: llvm-mc -triple thumbv8 %s -o - -show-encoding 2>&1 | FileCheck %s --check-prefix=CHECK-VALID @ RUN: llvm-mc -triple thumbv7em %s -o - -show-encoding 2>&1 | FileCheck %s --check-prefix=CHECK-VALID @ RUN: llvm-mc -triple thumbv6t2 %s -o - -show-encoding 2>&1 | FileCheck %s --check-prefix=CHECK-VALID @ RUN: not llvm-mc -triple thumbv6 %s -o - -show-encoding 2>&1 | FileCheck %s --check-prefix=CHECK-INVALID @ RUN: not llvm-mc -triple thumbv7m %s -o - -show-encoding 2>&1 | FileCheck %s --check-prefix=CHECK-INVALID @ RUN: not llvm-mc -triple thumbv8m.main %s -o - -show-encoding 2>&1 | FileCheck %s --check-prefix=CHECK-INVALID @ RUN: not llvm-mc -triple thumbv8m.base %s -o - -show-encoding 2>&1 | FileCheck %s --check-prefix=CHECK-INVALID @ Instruction is "v6T2, v7" in ARMARM-AR, "v7em" in ARMARM-M. So it's @ valid on everything v6t2 upwards, except v7m. Also apparently not on @ v8m (going by present behaviour). pkhbt r1, r2, r3, lsl #24 @ CHECK-VALID: pkhbt r1, r2, r3, lsl #24 @ encoding: [0xc2,0xea,0x03,0x61] @ CHECK-INVALID: error: