From 7d35249e897dc655c7c884b83d5cb39478ae497c Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Tue, 4 Aug 2009 16:52:44 +0000 Subject: Fix PR4528. This scavenger assertion is too strict. The two-address value is killed by another operand. There is probably a better fix. Either 1) scavenger can look at other operands, or 2) livevariables can be smarter about kill markers. Patches welcome. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78072 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/RegisterScavenging.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'lib/CodeGen/RegisterScavenging.cpp') diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp index e1c8f2fe22..0a29ef02bc 100644 --- a/lib/CodeGen/RegisterScavenging.cpp +++ b/lib/CodeGen/RegisterScavenging.cpp @@ -267,7 +267,8 @@ void RegScavenger::forward() { unsigned UseIdx; if (MI->isRegTiedToUseOperand(Idx, &UseIdx) && !MI->getOperand(UseIdx).isUndef()) { - assert(isUsed(Reg) && "Using an undefined register!"); + assert(!MI->getOperand(UseIdx).isKill() && + "Using an undefined register!"); continue; } -- cgit v1.2.3-18-g5258