[mips] Enable arithmetic and binary operations for the i128 data type.
Summary:
This patch adds support for some operations that were missing from
128-bit integer types (add/sub/mul/sdiv/udiv... etc.). With these
changes we can support the __int128_t and __uint128_t data types
from C/C++.
Depends on D7125
Reviewers: dsanders
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D7143
llvm-svn: 227089
diff --git a/llvm/lib/Target/Mips/MipsSEISelLowering.cpp b/llvm/lib/Target/Mips/MipsSEISelLowering.cpp
index 29aac2e..3f865af 100644
--- a/llvm/lib/Target/Mips/MipsSEISelLowering.cpp
+++ b/llvm/lib/Target/Mips/MipsSEISelLowering.cpp
@@ -122,6 +122,8 @@
setOperationAction(ISD::MUL, MVT::i64, Custom);
if (Subtarget.isGP64bit()) {
+ setOperationAction(ISD::SMUL_LOHI, MVT::i64, Custom);
+ setOperationAction(ISD::UMUL_LOHI, MVT::i64, Custom);
setOperationAction(ISD::MULHS, MVT::i64, Custom);
setOperationAction(ISD::MULHU, MVT::i64, Custom);
setOperationAction(ISD::SDIVREM, MVT::i64, Custom);
@@ -200,6 +202,8 @@
if (Subtarget.hasMips64r6()) {
// MIPS64r6 replaces the accumulator-based multiplies with a three register
// instruction
+ setOperationAction(ISD::SMUL_LOHI, MVT::i64, Expand);
+ setOperationAction(ISD::UMUL_LOHI, MVT::i64, Expand);
setOperationAction(ISD::MUL, MVT::i64, Legal);
setOperationAction(ISD::MULHS, MVT::i64, Legal);
setOperationAction(ISD::MULHU, MVT::i64, Legal);