diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86Instr64bit.td | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/Target/X86/X86Instr64bit.td b/lib/Target/X86/X86Instr64bit.td index 4ea3739..ebaff10 100644 --- a/lib/Target/X86/X86Instr64bit.td +++ b/lib/Target/X86/X86Instr64bit.td @@ -65,12 +65,18 @@ def i64immSExt8 : PatLeaf<(i64 imm), [{ return (int64_t)N->getZExtValue() == (int8_t)N->getZExtValue(); }]>; +def GetLo32XForm : SDNodeXForm<imm, [{ + // Transformation function: get the low 32 bits. + return getI32Imm((unsigned)N->getZExtValue()); +}]>; + def i64immSExt32 : PatLeaf<(i64 imm), [{ // i64immSExt32 predicate - True if the 64-bit immediate fits in a 32-bit // sign extended field. return (int64_t)N->getZExtValue() == (int32_t)N->getZExtValue(); }]>; + def i64immZExt32 : PatLeaf<(i64 imm), [{ // i64immZExt32 predicate - True if the 64-bit immediate fits in a 32-bit // unsignedsign extended field. @@ -1981,7 +1987,7 @@ def : Pat<(and GR64:$src, i64immZExt32:$imm), (i64 0), (AND32ri (EXTRACT_SUBREG GR64:$src, x86_subreg_32bit), - imm:$imm), + (i32 (GetLo32XForm imm:$imm))), x86_subreg_32bit)>; // r & (2^32-1) ==> movz |