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| author | Daniel Sanders <daniel.sanders@imgtec.com> | 2013-11-25 11:14:43 +0000 |
|---|---|---|
| committer | Daniel Sanders <daniel.sanders@imgtec.com> | 2013-11-25 11:14:43 +0000 |
| commit | 4ac67fa809e447127872674647822819c0e8de9b (patch) | |
| tree | 67c2e0c5d2a96d25454f375ef969fec1adc8f0a9 /lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | |
| parent | 8a6c627fd04c45bb9aee7e469311adbdc4f44639 (diff) | |
| download | llvm-4ac67fa809e447127872674647822819c0e8de9b.tar.gz llvm-4ac67fa809e447127872674647822819c0e8de9b.tar.bz2 llvm-4ac67fa809e447127872674647822819c0e8de9b.tar.xz | |
Fixed tryFoldToZero() for vector types that need expansion.
Summary:
Moved the requirement for SelectionDAG::getConstant() to return legally
typed nodes slightly earlier. There were two optional DAGCombine passes
that were missed out and were required to produce type-legal DAGs.
Simplified a code-path in tryFoldToZero() to use SelectionDAG::getConstant().
This provides support for both promoted and expanded vector types whereas the
previous code only supported promoted vector types.
Fixes a "Type for zero vector elements is not legal" assertion detected by
an llvm-stress generated test.
Reviewers: resistor
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D2251
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195635 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index c0e8a72aa3..6c335d96c7 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -671,6 +671,8 @@ void SelectionDAGISel::CodeGenAndEmitDAG() { DEBUG(dbgs() << "Type-legalized selection DAG: BB#" << BlockNumber << " '" << BlockName << "'\n"; CurDAG->dump()); + CurDAG->NewNodesMustHaveLegalTypes = true; + if (Changed) { if (ViewDAGCombineLT) CurDAG->viewGraph("dag-combine-lt input for " + BlockName); @@ -712,8 +714,6 @@ void SelectionDAGISel::CodeGenAndEmitDAG() { << BlockNumber << " '" << BlockName << "'\n"; CurDAG->dump()); } - CurDAG->NewNodesMustHaveLegalTypes = true; - if (ViewLegalizeDAGs) CurDAG->viewGraph("legalize input for " + BlockName); { |