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authorStephen Hines <srhines@google.com>2014-05-29 02:49:00 -0700
committerStephen Hines <srhines@google.com>2014-05-29 02:49:00 -0700
commitdce4a407a24b04eebc6a376f8e62b41aaa7b071f (patch)
treedcebc53f2b182f145a2e659393bf9a0472cedf23 /lib/Target/TargetSubtargetInfo.cpp
parent220b921aed042f9e520c26cffd8282a94c66c3d5 (diff)
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Update LLVM for 3.5 rebase (r209712).
Change-Id: I149556c940fb7dc92d075273c87ff584f400941f
Diffstat (limited to 'lib/Target/TargetSubtargetInfo.cpp')
-rw-r--r--lib/Target/TargetSubtargetInfo.cpp11
1 files changed, 6 insertions, 5 deletions
diff --git a/lib/Target/TargetSubtargetInfo.cpp b/lib/Target/TargetSubtargetInfo.cpp
index df8948f0bc..3ca13dac03 100644
--- a/lib/Target/TargetSubtargetInfo.cpp
+++ b/lib/Target/TargetSubtargetInfo.cpp
@@ -24,11 +24,12 @@ TargetSubtargetInfo::TargetSubtargetInfo() {}
TargetSubtargetInfo::~TargetSubtargetInfo() {}
// Temporary option to compare overall performance change when moving from the
-// SD scheduler to the MachineScheduler pass pipeline. It should be removed
-// before 3.4. The normal way to enable/disable the MachineScheduling pass
-// itself is by using -enable-misched. For targets that already use MI sched
-// (via MySubTarget::enableMachineScheduler()) -misched-bench=false negates the
-// subtarget hook.
+// SD scheduler to the MachineScheduler pass pipeline. This is convenient for
+// benchmarking during the transition from SD to MI scheduling. Once armv7 makes
+// the switch, it should go away. The normal way to enable/disable the
+// MachineScheduling pass itself is by using -enable-misched. For targets that
+// already use MI sched (via MySubTarget::enableMachineScheduler())
+// -misched-bench=false negates the subtarget hook.
static cl::opt<bool> BenchMachineSched("misched-bench", cl::Hidden,
cl::desc("Migrate from the target's default SD scheduler to MI scheduler"));