From 739e5e33d72df8fff8f1f0ec2f7b0fd637432b26 Mon Sep 17 00:00:00 2001 From: Alkis Evlogimenos Date: Wed, 18 Feb 2004 03:35:38 +0000 Subject: Fix overly conservative spill interval computation. llvm-svn: 11574 --- llvm/lib/CodeGen/LiveIntervals.cpp | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'llvm/lib') diff --git a/llvm/lib/CodeGen/LiveIntervals.cpp b/llvm/lib/CodeGen/LiveIntervals.cpp index 64925b40bd3..5079ef822ca 100644 --- a/llvm/lib/CodeGen/LiveIntervals.cpp +++ b/llvm/lib/CodeGen/LiveIntervals.cpp @@ -191,10 +191,9 @@ void LiveIntervals::updateSpilledInterval(Interval& li) if (mop.isRegister()) { unsigned reg = mop.getReg(); if (rep(reg) == li.reg) { - if (mop.isUse()) - li.addRange(index, index+2); - else - li.addRange(index+1, index+2); + unsigned start = mop.isUse() ? index : index+1; + unsigned end = mop.isDef() ? index+2 : index+1; + li.addRange(start, end); } } } -- cgit v1.2.3