diff options
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrCompiler.td | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/llvm/lib/Target/X86/X86InstrCompiler.td b/llvm/lib/Target/X86/X86InstrCompiler.td index 703c517b2f8..394dca8e781 100644 --- a/llvm/lib/Target/X86/X86InstrCompiler.td +++ b/llvm/lib/Target/X86/X86InstrCompiler.td @@ -1276,7 +1276,8 @@ defm : CMOVmr<X86_COND_NO, CMOVO16rm , CMOVO32rm , CMOVO64rm>; // i1 stored in one byte in zero-extended form. // Upper bits cleanup should be executed before Store. def : Pat<(zextloadi8i1 addr:$src), (MOV8rm addr:$src)>; -def : Pat<(zextloadi16i1 addr:$src), (MOVZX16rm8 addr:$src)>; +def : Pat<(zextloadi16i1 addr:$src), + (EXTRACT_SUBREG (MOVZX32rm8 addr:$src), sub_16bit)>; def : Pat<(zextloadi32i1 addr:$src), (MOVZX32rm8 addr:$src)>; def : Pat<(zextloadi64i1 addr:$src), (SUBREG_TO_REG (i64 0), (MOVZX32rm8 addr:$src), sub_32bit)>; @@ -1287,9 +1288,11 @@ def : Pat<(zextloadi64i1 addr:$src), // defined, avoiding partial-register updates. def : Pat<(extloadi8i1 addr:$src), (MOV8rm addr:$src)>; -def : Pat<(extloadi16i1 addr:$src), (MOVZX16rm8 addr:$src)>; +def : Pat<(extloadi16i1 addr:$src), + (EXTRACT_SUBREG (MOVZX32rm8 addr:$src), sub_16bit)>; def : Pat<(extloadi32i1 addr:$src), (MOVZX32rm8 addr:$src)>; -def : Pat<(extloadi16i8 addr:$src), (MOVZX16rm8 addr:$src)>; +def : Pat<(extloadi16i8 addr:$src), + (EXTRACT_SUBREG (MOVZX32rm8 addr:$src), sub_16bit)>; def : Pat<(extloadi32i8 addr:$src), (MOVZX32rm8 addr:$src)>; def : Pat<(extloadi32i16 addr:$src), (MOVZX32rm16 addr:$src)>; |
