From 278ba1f9b6c14ddf79040979c88b978d41f8c036 Mon Sep 17 00:00:00 2001 From: Andrew Trick Date: Sat, 5 Feb 2011 02:58:46 +0000 Subject: Fix an anti-dep breaker corner case. illegal register operands for UMULL instruction in cfrac nightly test I'm stil working on a unit test, but the case is: rx = movcc rx, r3 r2 = ldr r2, r3 = umull r2, r2 The anti-dep breaker should not convert this into an illegal instruction: r2, r2 = umull git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124932 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/CriticalAntiDepBreaker.cpp | 1 - 1 file changed, 1 deletion(-) (limited to 'lib/CodeGen/CriticalAntiDepBreaker.cpp') diff --git a/lib/CodeGen/CriticalAntiDepBreaker.cpp b/lib/CodeGen/CriticalAntiDepBreaker.cpp index 4817346061..7b2ce36241 100644 --- a/lib/CodeGen/CriticalAntiDepBreaker.cpp +++ b/lib/CodeGen/CriticalAntiDepBreaker.cpp @@ -334,7 +334,6 @@ CriticalAntiDepBreaker::isNewRegModifiedByRefs(RegRefIter RegRefBegin, { for (RegRefIter I = RegRefBegin; I != RegRefEnd; ++I ) { MachineOperand *MO = I->second; - if (MO->isDef()) continue; if (MO->getParent()->modifiesRegister(NewReg, TRI)) return true; } -- cgit v1.2.3