From 1f42b922025d6759b7803f73203e8b6258f85044 Mon Sep 17 00:00:00 2001 From: "Andrew V. Tischenko" Date: Wed, 20 Sep 2017 08:17:17 +0000 Subject: [PATCH] 'into' instruction should not be decoded as a valid instr in 64-bit mode git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313735 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86InstrSystem.td | 2 +- test/MC/Disassembler/X86/x86-64-err.txt | 6 ++++++ 2 files changed, 7 insertions(+), 1 deletion(-) create mode 100644 test/MC/Disassembler/X86/x86-64-err.txt diff --git a/lib/Target/X86/X86InstrSystem.td b/lib/Target/X86/X86InstrSystem.td index 2e5350ce979..e9b6c6785bc 100644 --- a/lib/Target/X86/X86InstrSystem.td +++ b/lib/Target/X86/X86InstrSystem.td @@ -33,7 +33,7 @@ def RSM : I<0xAA, RawFrm, (outs), (ins), "rsm", [], IIC_RSM>, TB; // Interrupt and SysCall Instructions. let Uses = [EFLAGS] in - def INTO : I<0xce, RawFrm, (outs), (ins), "into", []>; + def INTO : I<0xce, RawFrm, (outs), (ins), "into", []>, Requires<[Not64BitMode]>; def INT3 : I<0xcc, RawFrm, (outs), (ins), "int3", [(int_x86_int (i8 3))], IIC_INT3>; } // SchedRW diff --git a/test/MC/Disassembler/X86/x86-64-err.txt b/test/MC/Disassembler/X86/x86-64-err.txt new file mode 100644 index 00000000000..8dd43ed485c --- /dev/null +++ b/test/MC/Disassembler/X86/x86-64-err.txt @@ -0,0 +1,6 @@ +# RUN: llvm-mc --disassemble %s -triple=x86_64 2>&1 | FileCheck --check-prefix=64 %s +# RUN: llvm-mc --disassemble %s -triple=i386 | FileCheck --check-prefix=32 %s + +# 64: warning: invalid instruction encoding +# 32: into +0xce -- 2.40.0