diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86Instr64bit.td | 6 | ||||
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.td | 10 |
2 files changed, 0 insertions, 16 deletions
diff --git a/lib/Target/X86/X86Instr64bit.td b/lib/Target/X86/X86Instr64bit.td index 932e1b7afc..23a403068b 100644 --- a/lib/Target/X86/X86Instr64bit.td +++ b/lib/Target/X86/X86Instr64bit.td @@ -1240,12 +1240,6 @@ def : Pat<(and GR64:$src, i64immFFFFFFFF), (SUBREG_TO_REG (i64 0), (i32 (EXTRACT_SUBREG GR64:$src, x86_subreg_32bit)), x86_subreg_32bit)>; -// r & (2^16-1) ==> movz -def : Pat<(and GR64:$src, 0xffff), - (MOVZX64rr16 (i16 (EXTRACT_SUBREG GR64:$src, x86_subreg_16bit)))>; -// r & (2^8-1) ==> movz -def : Pat<(and GR64:$src, 0xff), - (MOVZX64rr8 (i8 (EXTRACT_SUBREG GR64:$src, x86_subreg_8bit)))>; // (shl x, 1) ==> (add x, x) def : Pat<(shl GR64:$src1, (i8 1)), (ADD64rr GR64:$src1, GR64:$src1)>; diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index 9996195407..4f3a3af0f9 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -2763,16 +2763,6 @@ def : Pat<(i32 (and (loadi32 addr:$src), (i32 65535))),(MOVZX32rm16 addr:$src)>; // Some peepholes //===----------------------------------------------------------------------===// -// r & (2^16-1) ==> movz -def : Pat<(and GR32:$src1, 0xffff), - (MOVZX32rr16 (i16 (EXTRACT_SUBREG GR32:$src1, x86_subreg_16bit)))>; -// r & (2^8-1) ==> movz -def : Pat<(and GR32:$src1, 0xff), - (MOVZX32rr8 (i8 (EXTRACT_SUBREG GR32:$src1, x86_subreg_8bit)))>; -// r & (2^8-1) ==> movz -def : Pat<(and GR16:$src1, 0xff), - (MOVZX16rr8 (i8 (EXTRACT_SUBREG GR16:$src1, x86_subreg_8bit)))>; - // (shl x, 1) ==> (add x, x) def : Pat<(shl GR8 :$src1, (i8 1)), (ADD8rr GR8 :$src1, GR8 :$src1)>; def : Pat<(shl GR16:$src1, (i8 1)), (ADD16rr GR16:$src1, GR16:$src1)>; |