From 8833c32108b026e803a4d1ddd6ab1badd3f9dbbc Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Fri, 30 Apr 2010 19:22:39 +0000 Subject: [PATCH] Set isSigned to true when creating an all-ones integer constant, even for unsigned purposes, so >64-bit integer values get a full all-ones value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102739 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Analysis/ScalarEvolution.cpp | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp index d6b4f3fff40..2e7209a4829 100644 --- a/lib/Analysis/ScalarEvolution.cpp +++ b/lib/Analysis/ScalarEvolution.cpp @@ -3948,22 +3948,22 @@ ScalarEvolution::ComputeBackedgeTakenCountFromExitCondICmp(const Loop *L, break; case ICmpInst::ICMP_ULE: if (!getUnsignedRange(RHS).getUnsignedMax().isMaxValue()) { - RHS = getAddExpr(getConstant(RHS->getType(), 1, false), RHS, + RHS = getAddExpr(getConstant(RHS->getType(), 1, true), RHS, /*HasNUW=*/true, /*HasNSW=*/false); Cond = ICmpInst::ICMP_ULT; } else if (!getUnsignedRange(LHS).getUnsignedMin().isMinValue()) { - LHS = getAddExpr(getConstant(RHS->getType(), (uint64_t)-1, false), LHS, + LHS = getAddExpr(getConstant(RHS->getType(), (uint64_t)-1, true), LHS, /*HasNUW=*/true, /*HasNSW=*/false); Cond = ICmpInst::ICMP_ULT; } break; case ICmpInst::ICMP_UGE: if (!getUnsignedRange(RHS).getUnsignedMin().isMinValue()) { - RHS = getAddExpr(getConstant(RHS->getType(), (uint64_t)-1, false), RHS, + RHS = getAddExpr(getConstant(RHS->getType(), (uint64_t)-1, true), RHS, /*HasNUW=*/true, /*HasNSW=*/false); Cond = ICmpInst::ICMP_UGT; } else if (!getUnsignedRange(LHS).getUnsignedMax().isMaxValue()) { - LHS = getAddExpr(getConstant(RHS->getType(), 1, false), LHS, + LHS = getAddExpr(getConstant(RHS->getType(), 1, true), LHS, /*HasNUW=*/true, /*HasNSW=*/false); Cond = ICmpInst::ICMP_UGT; } -- 2.34.1