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| author | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2012-11-15 19:33:30 +0000 |
|---|---|---|
| committer | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2012-11-15 19:33:30 +0000 |
| commit | f38aa4272c2fcebae4ad10b21ea29874d0edef80 (patch) | |
| tree | b70371cd4c225f360da82e894751005525ef78c6 /lib/CodeGen/StackColoring.cpp | |
| parent | 7c6694946d2d2e45d529430b4678b553cd164f58 (diff) | |
Use std::stable_sort instead of std::sort when sorting stack slots
to guarantee deterministic code generation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168074 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/StackColoring.cpp')
| -rw-r--r-- | lib/CodeGen/StackColoring.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/CodeGen/StackColoring.cpp b/lib/CodeGen/StackColoring.cpp index 1cbee843a1..e306a2f2c2 100644 --- a/lib/CodeGen/StackColoring.cpp +++ b/lib/CodeGen/StackColoring.cpp @@ -720,7 +720,9 @@ bool StackColoring::runOnMachineFunction(MachineFunction &Func) { // and continue. // Sort the slots according to their size. Place unused slots at the end. - std::sort(SortedSlots.begin(), SortedSlots.end(), SlotSizeSorter(MFI)); + // Use stable sort to guarantee deterministic code generation. + std::stable_sort(SortedSlots.begin(), SortedSlots.end(), + SlotSizeSorter(MFI)); bool Chanded = true; while (Chanded) { |