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Fix off-by-one error in bucket sort.

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The bad sorting caused a misaligned basic block when building 176.vpr in
ARM mode.

<rdar://problem/10594653>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146767 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2011-12-16 23:00:05 +00:00
parent efb0d1e42f
commit b076fb7762
2 changed files with 27 additions and 1 deletions
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lib/Target/ARM/ARMConstantIslandPass.cpp
+1 -1
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@@ -537,7 +537,7 @@ ARMConstantIslands::DoInitialPlacement(std::vector<MachineInstr*> &CPEMIs) {
// Ensure that future entries with higher alignment get inserted before
// CPEMI. This is bucket sort with iterators.
for (unsigned a = LogAlign + 1; a < MaxAlign; ++a)
for (unsigned a = LogAlign + 1; a <= MaxAlign; ++a)
if (InsPoint[a] == InsAt)
InsPoint[a] = CPEMI;