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| author | Chris Lattner <sabre@nondot.org> | 2010-05-12 22:48:24 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-05-12 22:48:24 +0000 |
| commit | 2745f6e920dd8b562ded008e3e34acc873c5a36f (patch) | |
| tree | 95775ab5e430eccc09d2264caa1993d62d987b35 | |
| parent | 9a1581b9102511282ee823ab9a29819bc060e6a5 (diff) | |
| download | external_llvm-2745f6e920dd8b562ded008e3e34acc873c5a36f.zip external_llvm-2745f6e920dd8b562ded008e3e34acc873c5a36f.tar.gz external_llvm-2745f6e920dd8b562ded008e3e34acc873c5a36f.tar.bz2 | |
fix the encoding of the obscure "moffset" forms of moves, i386
part first. rdar://7947184
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103660 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.td | 11 | ||||
| -rw-r--r-- | test/MC/AsmParser/X86/x86_32-new-encoder.s | 7 |
2 files changed, 13 insertions, 5 deletions
diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index 4bb8cd2..fc33ba9 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -966,16 +966,17 @@ def MOV32mi : Ii32<0xC7, MRM0m, (outs), (ins i32mem:$dst, i32imm:$src), "mov{l}\t{$src, $dst|$dst, $src}", [(store (i32 imm:$src), addr:$dst)]>; -def MOV8o8a : Ii8 <0xA0, RawFrm, (outs), (ins offset8:$src), +/// moffs8, moffs16, moffs32 and moffs64 versions of moves. The immediate is a +/// 32-bit offset from the PC. +def MOV8o8a : Ii32 <0xA0, RawFrm, (outs), (ins offset8:$src), "mov{b}\t{$src, %al|%al, $src}", []>; -def MOV16o16a : Ii16 <0xA1, RawFrm, (outs), (ins offset16:$src), +def MOV16o16a : Ii32 <0xA1, RawFrm, (outs), (ins offset16:$src), "mov{w}\t{$src, %ax|%ax, $src}", []>, OpSize; def MOV32o32a : Ii32 <0xA1, RawFrm, (outs), (ins offset32:$src), "mov{l}\t{$src, %eax|%eax, $src}", []>; - -def MOV8ao8 : Ii8 <0xA2, RawFrm, (outs offset8:$dst), (ins), +def MOV8ao8 : Ii32 <0xA2, RawFrm, (outs offset8:$dst), (ins), "mov{b}\t{%al, $dst|$dst, %al}", []>; -def MOV16ao16 : Ii16 <0xA3, RawFrm, (outs offset16:$dst), (ins), +def MOV16ao16 : Ii32 <0xA3, RawFrm, (outs offset16:$dst), (ins), "mov{w}\t{%ax, $dst|$dst, %ax}", []>, OpSize; def MOV32ao32 : Ii32 <0xA3, RawFrm, (outs offset32:$dst), (ins), "mov{l}\t{%eax, $dst|$dst, %eax}", []>; diff --git a/test/MC/AsmParser/X86/x86_32-new-encoder.s b/test/MC/AsmParser/X86/x86_32-new-encoder.s index c00007f..6ce9868 100644 --- a/test/MC/AsmParser/X86/x86_32-new-encoder.s +++ b/test/MC/AsmParser/X86/x86_32-new-encoder.s @@ -50,3 +50,10 @@ rdtscp // CHECK: shrl %eax # encoding: [0xd1,0xe8] shrl $1, %eax + +// moffset forms of moves, rdar://7947184 + +movb 0, %al // CHECK: movb 0, %al # encoding: [0xa0,A,A,A,A] +movw 0, %ax // CHECK: movw 0, %ax # encoding: [0x66,0xa1,A,A,A,A] +movl 0, %eax // CHECK: movl 0, %eax # encoding: [0xa1,A,A,A,A] + |