commit 6208610fd602ebdb18bb793152899573d0b2b7ab
author Frits van Bommel <fvbommel@gmail.com> Sun Mar 27 14:26:13 2011 +0000
committer Frits van Bommel <fvbommel@gmail.com> Sun Mar 27 14:26:13 2011 +0000
tree 04cc9a6f57e3c0b146c2067bd287912b13e4b3e4
parent f0bf9dfc1f7755a6233e41fd6f259c4ee08a40dc

Constant folding support for calls to umul.with.overflow(), basically identical to the smul.with.overflow() code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128379 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Analysis/ConstantFolding.cpp

diff --git a/lib/Analysis/ConstantFolding.cpp b/lib/Analysis/ConstantFolding.cpp
index cd8d52c..c6aad0c 100644
--- a/lib/Analysis/ConstantFolding.cpp
+++ b/lib/Analysis/ConstantFolding.cpp
@@ -1048,11 +1048,12 @@
   case Intrinsic::ctpop:
   case Intrinsic::ctlz:
   case Intrinsic::cttz:
-  case Intrinsic::uadd_with_overflow:
-  case Intrinsic::usub_with_overflow:
   case Intrinsic::sadd_with_overflow:
+  case Intrinsic::uadd_with_overflow:
   case Intrinsic::ssub_with_overflow:
+  case Intrinsic::usub_with_overflow:
   case Intrinsic::smul_with_overflow:
+  case Intrinsic::umul_with_overflow:
   case Intrinsic::convert_from_fp16:
   case Intrinsic::convert_to_fp16:
   case Intrinsic::x86_sse_cvtss2si:
@@ -1362,7 +1363,8 @@
         case Intrinsic::uadd_with_overflow:
         case Intrinsic::ssub_with_overflow:
         case Intrinsic::usub_with_overflow:
-        case Intrinsic::smul_with_overflow: {
+        case Intrinsic::smul_with_overflow:
+        case Intrinsic::umul_with_overflow: {
           APInt Res;
           bool Overflow;
           switch (F->getIntrinsicID()) {
@@ -1382,6 +1384,9 @@
           case Intrinsic::smul_with_overflow:
             Res = Op1->getValue().smul_ov(Op2->getValue(), Overflow);
             break;
+          case Intrinsic::umul_with_overflow:
+            Res = Op1->getValue().umul_ov(Op2->getValue(), Overflow);
+            break;
           }
           Constant *Ops[] = {
             ConstantInt::get(F->getContext(), Res),