Subzero: Remove the IceV_RegManager enum value.
This hasn't been used in a very long time, and there's no intention of using it again.
Originally there was the idea of a "fast" block-local register allocator for an O1-like configuration, which would allocate registers for infinite-weight temporaries during target lowering, using a "local register manager". This verbose option was for tracing execution of this register manager. However, by now it seems unlikely that this would do a better/faster job than the current Om1 register allocation approach, which reuses the linear-scan code quite effectively and does very well at separation of concerns. So adios IceV_RegManager!
BUG= none
R=jvoung@chromium.org
Review URL: https://codereview.chromium.org/831663008
diff --git a/src/IceDefs.h b/src/IceDefs.h
index 4f58ede..cd4011b 100644
--- a/src/IceDefs.h
+++ b/src/IceDefs.h
@@ -148,12 +148,11 @@
IceV_Preds = 1 << 3,
IceV_Succs = 1 << 4,
IceV_Liveness = 1 << 5,
- IceV_RegManager = 1 << 6,
- IceV_RegOrigins = 1 << 7,
- IceV_LinearScan = 1 << 8,
- IceV_Frame = 1 << 9,
- IceV_AddrOpt = 1 << 10,
- IceV_Random = 1 << 11,
+ IceV_RegOrigins = 1 << 6,
+ IceV_LinearScan = 1 << 7,
+ IceV_Frame = 1 << 8,
+ IceV_AddrOpt = 1 << 9,
+ IceV_Random = 1 << 10,
IceV_All = ~IceV_None,
IceV_Most = IceV_All & ~IceV_LinearScan
};
diff --git a/src/llvm2ice.cpp b/src/llvm2ice.cpp
index d2cf823..bd86c57 100644
--- a/src/llvm2ice.cpp
+++ b/src/llvm2ice.cpp
@@ -44,7 +44,6 @@
clEnumValN(Ice::IceV_Preds, "pred", "Show predecessors"),
clEnumValN(Ice::IceV_Succs, "succ", "Show successors"),
clEnumValN(Ice::IceV_Liveness, "live", "Liveness information"),
- clEnumValN(Ice::IceV_RegManager, "rmgr", "Register manager status"),
clEnumValN(Ice::IceV_RegOrigins, "orig", "Physical register origins"),
clEnumValN(Ice::IceV_LinearScan, "regalloc", "Linear scan details"),
clEnumValN(Ice::IceV_Frame, "frame", "Stack frame layout details"),
