From 0840f50b7652558f33fea38948592cf15857574a Mon Sep 17 00:00:00 2001 From: Jakob Stoklund Olesen Date: Tue, 12 Apr 2011 18:11:31 +0000 Subject: Add SplitKit API to query and select the current interval being worked on. This makes it possible to target multiple registers in one pass. llvm-svn: 129374 --- llvm/lib/CodeGen/SplitKit.cpp | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'llvm/lib/CodeGen/SplitKit.cpp') diff --git a/llvm/lib/CodeGen/SplitKit.cpp b/llvm/lib/CodeGen/SplitKit.cpp index 6195ab0f206..f85d5d358ab 100644 --- a/llvm/lib/CodeGen/SplitKit.cpp +++ b/llvm/lib/CodeGen/SplitKit.cpp @@ -557,7 +557,7 @@ VNInfo *SplitEditor::defFromParent(unsigned RegIdx, } /// Create a new virtual register and live interval. -void SplitEditor::openIntv() { +unsigned SplitEditor::openIntv() { assert(!OpenIdx && "Previous LI not closed before openIntv"); // Create the complement as index 0. @@ -567,6 +567,13 @@ void SplitEditor::openIntv() { // Create the open interval. OpenIdx = Edit->size(); Edit->create(LIS, VRM); + return OpenIdx; +} + +void SplitEditor::selectIntv(unsigned Idx) { + assert(Idx != 0 && "Cannot select the complement interval"); + assert(Idx < Edit->size() && "Can only select previously opened interval"); + OpenIdx = Idx; } SlotIndex SplitEditor::enterIntvBefore(SlotIndex Idx) { -- cgit v1.2.3