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path: root/lib/Target/X86/X86TargetMachine.cpp
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Diffstat (limited to 'lib/Target/X86/X86TargetMachine.cpp')
-rw-r--r--lib/Target/X86/X86TargetMachine.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp
index f1f003ba07..a2efb034f5 100644
--- a/lib/Target/X86/X86TargetMachine.cpp
+++ b/lib/Target/X86/X86TargetMachine.cpp
@@ -68,6 +68,9 @@ bool X86TargetMachine::addPassesToEmitAssembly(PassManager &PM,
// FIXME: Implement the switch instruction in the instruction selector!
PM.add(createLowerSwitchPass());
+ // Make sure that no unreachable blocks are instruction selected.
+ PM.add(createUnreachableBlockEliminationPass());
+
if (NoPatternISel && NoSimpleISel)
PM.add(createX86SimpleInstructionSelector(*this));
else if (NoPatternISel)
@@ -125,6 +128,9 @@ void X86JITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
// FIXME: Implement the switch instruction in the instruction selector!
PM.add(createLowerSwitchPass());
+ // Make sure that no unreachable blocks are instruction selected.
+ PM.add(createUnreachableBlockEliminationPass());
+
if (NoPatternISel)
PM.add(createX86SimpleInstructionSelector(TM));
else