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path: root/lib/CodeGen/StackColoring.cpp
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2012-09-12Stack coloring: remove lifetime intervals which contain escaped allocas.Nadav Rotem
The input program may contain intructions which are not inside lifetime markers. This can happen due to a bug in the compiler or due to a bug in user code (for example, returning a reference to a local variable). This commit adds checks that all of the instructions in the function and invalidates lifetime ranges which do not contain all of the instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163678 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-11Dragonegg selfhost exposed additional cases where alloca usage moved outside ↵Nadav Rotem
of lifetime markers. Disabling the pass for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163623 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-11Enable stack coloring.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163617 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-11Stack Coloring: Dont crash on dbg values which use stack frames.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163616 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Remove redundant semicolons which are null statements.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163547 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Disable stack coloring because it makes dragonegg fail bootstrapping.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163545 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Enable stack coloring.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163539 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Stack Coloring: Handle the case where END markers come before BEGIN markers ↵Nadav Rotem
properly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163530 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Minor cleanup. No functional change.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163510 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Stack Coloring: Debug prints to print the slot number and not the array index.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163509 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Stack Coloring: When searching for disjoint regions, do not compare ↵Nadav Rotem
intervals twice or to theirself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163508 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Stack Coloring: Add support for multiple regions of the same slot, within a ↵Nadav Rotem
single basic block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163507 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Fix a typo in the comment.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163496 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Add an assertion that the frame index is indeed inside the declared lifetime ↵Nadav Rotem
region. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163495 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-06Dont cast away const needlessly. Found by gcc48 -Wcast-qual.Roman Divacky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163324 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-06Disable stack coloring by default in order to resolve the i386 failures.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163316 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-06Add a new optimization pass: Stack Coloring, that merges disjoint static ↵Nadav Rotem
allocations (allocas). Allocas are known to be disjoint if they are marked by disjoint lifetime markers (@llvm.lifetime.XXX intrinsics). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163299 91177308-0d34-0410-b5e6-96231b3b80d8
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