From: Craig Topper <craig.topper@gmail.com>
Date: Thu, 20 Apr 2017 06:04:03 +0000 (+0000)
Subject: [APInt] In slt/sgt(uint64_t), only call getMinSignedBits if the APInt is not a single... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=6366ebb69b1774e6ceccb70ef062adc060ded772;p=llvm

[APInt] In slt/sgt(uint64_t), only call getMinSignedBits if the APInt is not a single word.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300824 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/ADT/APInt.h b/include/llvm/ADT/APInt.h
index 2e8da455c0a..785a9afd4d8 100644
--- a/include/llvm/ADT/APInt.h
+++ b/include/llvm/ADT/APInt.h
@@ -1104,7 +1104,8 @@ public:
   ///
   /// \returns true if *this < RHS when considered signed.
   bool slt(int64_t RHS) const {
-    return getMinSignedBits() > 64 ? isNegative() : getSExtValue() < RHS;
+    return (!isSingleWord() && getMinSignedBits() > 64) ? isNegative()
+                                                        : getSExtValue() < RHS;
   }
 
   /// \brief Unsigned less or equal comparison
@@ -1173,7 +1174,8 @@ public:
   ///
   /// \returns true if *this > RHS when considered signed.
   bool sgt(int64_t RHS) const {
-    return getMinSignedBits() > 64 ? !isNegative() : getSExtValue() > RHS;
+    return (!isSingleWord() && getMinSignedBits() > 64) ? !isNegative()
+                                                        : getSExtValue() > RHS;
   }
 
   /// \brief Unsigned greater or equal comparison