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| author | Craig Topper <craig.topper@gmail.com> | 2011-10-03 08:14:29 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2011-10-03 08:14:29 +0000 |
| commit | 04c5be9f12fbb802ae48791399e999f29c0fb5c9 (patch) | |
| tree | 1985bc9168192178f7c8af002e03b41a9f023977 | |
| parent | 04b0b34b3aa3be028295e2aeccdfd054c449e310 (diff) | |
Treat VEX.vvvv as a 3-bit field outside of 64-bit mode. Prevents access to registers xmm8-xmm15 outside 64-bit mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140997 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/Disassembler/X86DisassemblerDecoder.c | 3 | ||||
| -rw-r--r-- | test/MC/Disassembler/X86/simple-tests.txt | 3 | ||||
| -rw-r--r-- | test/MC/Disassembler/X86/x86-32.txt | 3 |
3 files changed, 9 insertions, 0 deletions
diff --git a/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c b/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c index 1d5ad4c052..a1eb57c78f 100644 --- a/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c +++ b/lib/Target/X86/Disassembler/X86DisassemblerDecoder.c @@ -1491,6 +1491,9 @@ static int readVVVV(struct InternalInstruction* insn) { else return -1; + if (insn->mode != MODE_64BIT) + insn->vvvv &= 0x7; + return 0; } diff --git a/test/MC/Disassembler/X86/simple-tests.txt b/test/MC/Disassembler/X86/simple-tests.txt index cfaeb06d72..a9e6f41a73 100644 --- a/test/MC/Disassembler/X86/simple-tests.txt +++ b/test/MC/Disassembler/X86/simple-tests.txt @@ -365,3 +365,6 @@ # CHECK: testq $0, %rax 0x48 0xa9 0x00 0x00 0x00 0x00 + +# CHECK: vaddps %xmm3, %xmm15, %xmm0 +0xc4 0xe1 0x00 0x58 0xc3 diff --git a/test/MC/Disassembler/X86/x86-32.txt b/test/MC/Disassembler/X86/x86-32.txt index 24740f6c31..35015c67d0 100644 --- a/test/MC/Disassembler/X86/x86-32.txt +++ b/test/MC/Disassembler/X86/x86-32.txt @@ -384,3 +384,6 @@ # CHECK: movl %eax, 0 0xa3 0x00 0x00 0x00 0x00 + +# CHECK: vaddps %xmm3, %xmm7, %xmm0 +0xc4 0xe1 0x00 0x58 0xc3 |