diff options
Diffstat (limited to 'lib/Target/X86/X86InstrX86-64.td')
| -rw-r--r-- | lib/Target/X86/X86InstrX86-64.td | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/lib/Target/X86/X86InstrX86-64.td b/lib/Target/X86/X86InstrX86-64.td index 16930b4..ec0f470 100644 --- a/lib/Target/X86/X86InstrX86-64.td +++ b/lib/Target/X86/X86InstrX86-64.td @@ -1005,28 +1005,6 @@ let isTwoAddress = 1 in { // Alias Instructions //===----------------------------------------------------------------------===// -// Truncate -// In 64-mode, each 64-bit and 32-bit registers has a low 8-bit sub-register. -def TRUNC_64to8 : I<0x88, MRMDestReg, (outs GR8:$dst), (ins GR64:$src), - "mov{b} {${src:subreg8}, $dst|$dst, ${src:subreg8}", - [(set GR8:$dst, (trunc GR64:$src))]>; -def TRUNC_32to8 : I<0x88, MRMDestReg, (outs GR8:$dst), (ins GR32:$src), - "mov{b} {${src:subreg8}, $dst|$dst, ${src:subreg8}", - [(set GR8:$dst, (trunc GR32:$src))]>, - Requires<[In64BitMode]>; -def TRUNC_16to8 : I<0x88, MRMDestReg, (outs GR8:$dst), (ins GR16:$src), - "mov{b} {${src:subreg8}, $dst|$dst, ${src:subreg8}}", - [(set GR8:$dst, (trunc GR16:$src))]>, - Requires<[In64BitMode]>; - -def TRUNC_64to16 : I<0x89, MRMDestReg, (outs GR16:$dst), (ins GR64:$src), - "mov{w} {${src:subreg16}, $dst|$dst, ${src:subreg16}}", - [(set GR16:$dst, (trunc GR64:$src))]>; - -def TRUNC_64to32 : I<0x89, MRMDestReg, (outs GR32:$dst), (ins GR64:$src), - "mov{l} {${src:subreg32}, $dst|$dst, ${src:subreg32}}", - [(set GR32:$dst, (trunc GR64:$src))]>; - // Zero-extension // TODO: Remove this after proper i32 -> i64 zext support. def PsMOVZX64rr32: I<0x89, MRMDestReg, (outs GR64:$dst), (ins GR32:$src), |