Revert r229675 - [mips] Avoid redundant sign extension of the result of binary bitwis...

[oota-llvm.git] / lib / Target / Mips / Mips64InstrInfo.td

diff --git a/lib/Target/Mips/Mips64InstrInfo.td b/lib/Target/Mips/Mips64InstrInfo.td
index c37cf95cadc3899f0f4e813b6565a483d402bf4a..f917ecad4a534f7da6b13691735896aa839bb993 100644 (file)
--- a/lib/Target/Mips/Mips64InstrInfo.td
+++ b/lib/Target/Mips/Mips64InstrInfo.td
@@ -500,14 +500,6 @@ def : MipsPat<(trunc (assertzext GPR64:$src)),
 def : MipsPat<(i32 (trunc GPR64:$src)),
               (SLL (EXTRACT_SUBREG GPR64:$src, sub_32), 0)>;
 
-// Bypass trunc nodes for bitwise ops.
-def : MipsPat<(i32 (trunc (and GPR64:$lhs, GPR64:$rhs))),
-              (EXTRACT_SUBREG (AND64 GPR64:$lhs, GPR64:$rhs), sub_32)>;
-def : MipsPat<(i32 (trunc (or GPR64:$lhs, GPR64:$rhs))),
-              (EXTRACT_SUBREG (OR64 GPR64:$lhs, GPR64:$rhs), sub_32)>;
-def : MipsPat<(i32 (trunc (xor GPR64:$lhs, GPR64:$rhs))),
-              (EXTRACT_SUBREG (XOR64 GPR64:$lhs, GPR64:$rhs), sub_32)>;
-
 // variable shift instructions patterns
 def : MipsPat<(shl GPR64:$rt, (i32 (trunc GPR64:$rs))),
               (DSLLV GPR64:$rt, (EXTRACT_SUBREG GPR64:$rs, sub_32))>;