Merge of the nonstrict-ops branch:

- Most RTL operators now evaluate to Some Vundef instead of None
  when undefined behavior occurs.
- More aggressive instruction selection.
- "Bertotization" of pattern-matchings now implemented by a proper preprocessor.
- Cast optimization moved to cfrontend/Cminorgen; removed backend/CastOptim.


git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1790 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e

1 files changed, 5 insertions, 7 deletions

diff --git a/.depend b/.depend
index 41e9de4..1d9163b 100644
--- a/.depend
+++ b/.depend
@@ -38,8 +38,6 @@ backend/Tailcall.vo backend/Tailcall.glob: backend/Tailcall.v lib/Coqlib.vo lib/
 backend/Tailcallproof.vo backend/Tailcallproof.glob: backend/Tailcallproof.v lib/Coqlib.vo lib/Maps.vo common/AST.vo lib/Integers.vo common/Values.vo common/Memory.vo $(ARCH)/Op.vo common/Events.vo common/Globalenvs.vo common/Smallstep.vo backend/Registers.vo backend/RTL.vo backend/Conventions.vo backend/Tailcall.vo
 backend/RTLtyping.vo backend/RTLtyping.glob: backend/RTLtyping.v lib/Coqlib.vo common/Errors.vo lib/Maps.vo common/AST.vo $(ARCH)/Op.vo backend/Registers.vo common/Globalenvs.vo common/Values.vo common/Memory.vo lib/Integers.vo common/Events.vo common/Smallstep.vo backend/RTL.vo backend/Conventions.vo
 backend/Kildall.vo backend/Kildall.glob: backend/Kildall.v lib/Coqlib.vo lib/Iteration.vo lib/Maps.vo lib/Lattice.vo lib/Heaps.vo
-backend/CastOptim.vo backend/CastOptim.glob: backend/CastOptim.v lib/Coqlib.vo lib/Maps.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Globalenvs.vo $(ARCH)/Op.vo backend/Registers.vo backend/RTL.vo lib/Lattice.vo backend/Kildall.vo
-backend/CastOptimproof.vo backend/CastOptimproof.glob: backend/CastOptimproof.v lib/Coqlib.vo lib/Maps.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Events.vo common/Memory.vo common/Globalenvs.vo common/Smallstep.vo $(ARCH)/Op.vo backend/Registers.vo backend/RTL.vo lib/Lattice.vo backend/Kildall.vo backend/CastOptim.vo
 $(ARCH)/ConstpropOp.vo $(ARCH)/ConstpropOp.glob: $(ARCH)/ConstpropOp.v lib/Coqlib.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo $(ARCH)/Op.vo backend/Registers.vo
 backend/Constprop.vo backend/Constprop.glob: backend/Constprop.v lib/Coqlib.vo lib/Maps.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Globalenvs.vo $(ARCH)/Op.vo backend/Registers.vo backend/RTL.vo lib/Lattice.vo backend/Kildall.vo $(ARCH)/ConstpropOp.vo
 $(ARCH)/ConstpropOpproof.vo $(ARCH)/ConstpropOpproof.glob: $(ARCH)/ConstpropOpproof.v lib/Coqlib.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo $(ARCH)/Op.vo backend/Registers.vo backend/RTL.vo $(ARCH)/ConstpropOp.vo backend/Constprop.vo
@@ -88,9 +86,9 @@ backend/Stackingtyping.vo backend/Stackingtyping.glob: backend/Stackingtyping.v
 backend/Machsem.vo backend/Machsem.glob: backend/Machsem.v lib/Coqlib.vo lib/Maps.vo common/AST.vo lib/Integers.vo common/Values.vo common/Memory.vo common/Events.vo common/Globalenvs.vo common/Smallstep.vo $(ARCH)/Op.vo backend/Locations.vo backend/Conventions.vo backend/Mach.vo $(ARCH)/$(VARIANT)/Stacklayout.vo $(ARCH)/Asmgenretaddr.vo
 $(ARCH)/Asm.vo $(ARCH)/Asm.glob: $(ARCH)/Asm.v lib/Coqlib.vo lib/Maps.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Events.vo common/Globalenvs.vo common/Smallstep.vo backend/Locations.vo $(ARCH)/$(VARIANT)/Stacklayout.vo backend/Conventions.vo
 $(ARCH)/Asmgen.vo $(ARCH)/Asmgen.glob: $(ARCH)/Asmgen.v lib/Coqlib.vo lib/Maps.vo common/Errors.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo $(ARCH)/Op.vo backend/Locations.vo backend/Mach.vo $(ARCH)/Asm.vo
-$(ARCH)/Asmgenretaddr.vo $(ARCH)/Asmgenretaddr.glob: $(ARCH)/Asmgenretaddr.v lib/Coqlib.vo lib/Maps.vo common/AST.vo common/Errors.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo $(ARCH)/Op.vo backend/Locations.vo backend/Mach.vo $(ARCH)/Asm.vo $(ARCH)/Asmgen.vo
-$(ARCH)/Asmgenproof1.vo $(ARCH)/Asmgenproof1.glob: $(ARCH)/Asmgenproof1.v lib/Coqlib.vo lib/Maps.vo common/AST.vo common/Errors.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo $(ARCH)/Op.vo backend/Locations.vo backend/Mach.vo backend/Machsem.vo backend/Machtyping.vo $(ARCH)/Asm.vo $(ARCH)/Asmgen.vo backend/Conventions.vo
-$(ARCH)/Asmgenproof.vo $(ARCH)/Asmgenproof.glob: $(ARCH)/Asmgenproof.v lib/Coqlib.vo lib/Maps.vo common/Errors.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Events.vo common/Globalenvs.vo common/Smallstep.vo $(ARCH)/Op.vo backend/Locations.vo backend/Mach.vo backend/Machsem.vo backend/Machtyping.vo backend/Conventions.vo $(ARCH)/Asm.vo $(ARCH)/Asmgen.vo $(ARCH)/Asmgenretaddr.vo $(ARCH)/Asmgenproof1.vo
+$(ARCH)/Asmgenretaddr.vo $(ARCH)/Asmgenretaddr.glob: $(ARCH)/Asmgenretaddr.v lib/Coqlib.vo lib/Maps.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo $(ARCH)/Op.vo backend/Locations.vo backend/Mach.vo $(ARCH)/Asm.vo $(ARCH)/Asmgen.vo
+$(ARCH)/Asmgenproof1.vo $(ARCH)/Asmgenproof1.glob: $(ARCH)/Asmgenproof1.v lib/Coqlib.vo lib/Maps.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo $(ARCH)/Op.vo backend/Locations.vo backend/Mach.vo backend/Machsem.vo backend/Machtyping.vo $(ARCH)/Asm.vo $(ARCH)/Asmgen.vo backend/Conventions.vo
+$(ARCH)/Asmgenproof.vo $(ARCH)/Asmgenproof.glob: $(ARCH)/Asmgenproof.v lib/Coqlib.vo lib/Maps.vo common/Errors.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Events.vo common/Globalenvs.vo common/Smallstep.vo $(ARCH)/Op.vo backend/Locations.vo backend/Conventions.vo backend/Mach.vo backend/Machsem.vo backend/Machtyping.vo $(ARCH)/Asm.vo $(ARCH)/Asmgen.vo $(ARCH)/Asmgenretaddr.vo $(ARCH)/Asmgenproof1.vo
 cfrontend/Csyntax.vo cfrontend/Csyntax.glob: cfrontend/Csyntax.v lib/Coqlib.vo common/Errors.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/AST.vo
 cfrontend/Csem.vo cfrontend/Csem.glob: cfrontend/Csem.v lib/Coqlib.vo common/Errors.vo lib/Maps.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/AST.vo common/Memory.vo common/Events.vo common/Globalenvs.vo cfrontend/Csyntax.vo common/Smallstep.vo
 cfrontend/Cstrategy.vo cfrontend/Cstrategy.glob: cfrontend/Cstrategy.v lib/Axioms.vo lib/Coqlib.vo common/Errors.vo lib/Maps.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/AST.vo common/Memory.vo common/Events.vo common/Globalenvs.vo common/Smallstep.vo cfrontend/Csyntax.vo cfrontend/Csem.vo
@@ -104,7 +102,7 @@ cfrontend/Clight.vo cfrontend/Clight.glob: cfrontend/Clight.v lib/Coqlib.vo comm
 cfrontend/Cshmgen.vo cfrontend/Cshmgen.glob: cfrontend/Cshmgen.v lib/Coqlib.vo common/Errors.vo lib/Integers.vo lib/Floats.vo common/AST.vo cfrontend/Csyntax.vo cfrontend/Clight.vo backend/Cminor.vo cfrontend/Csharpminor.vo
 cfrontend/Cshmgenproof.vo cfrontend/Cshmgenproof.glob: cfrontend/Cshmgenproof.v lib/Coqlib.vo common/Errors.vo lib/Maps.vo lib/Integers.vo lib/Floats.vo common/AST.vo common/Values.vo common/Events.vo common/Memory.vo common/Globalenvs.vo common/Smallstep.vo cfrontend/Csyntax.vo cfrontend/Csem.vo cfrontend/Clight.vo backend/Cminor.vo cfrontend/Csharpminor.vo cfrontend/Cshmgen.vo
 cfrontend/Csharpminor.vo cfrontend/Csharpminor.glob: cfrontend/Csharpminor.v lib/Coqlib.vo lib/Maps.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Events.vo common/Globalenvs.vo backend/Cminor.vo common/Smallstep.vo
-cfrontend/Cminorgen.vo cfrontend/Cminorgen.glob: cfrontend/Cminorgen.v lib/Coqlib.vo common/Errors.vo lib/Maps.vo lib/Ordered.vo common/AST.vo lib/Integers.vo common/Memdata.vo cfrontend/Csharpminor.vo backend/Cminor.vo
+cfrontend/Cminorgen.vo cfrontend/Cminorgen.glob: cfrontend/Cminorgen.v lib/Coqlib.vo common/Errors.vo lib/Maps.vo lib/Ordered.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Memdata.vo cfrontend/Csharpminor.vo backend/Cminor.vo
 cfrontend/Cminorgenproof.vo cfrontend/Cminorgenproof.glob: cfrontend/Cminorgenproof.v lib/Coqlib.vo lib/Intv.vo common/Errors.vo lib/Maps.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memdata.vo common/Memory.vo common/Events.vo common/Globalenvs.vo common/Smallstep.vo common/Switch.vo cfrontend/Csharpminor.vo backend/Cminor.vo cfrontend/Cminorgen.vo
-driver/Compiler.vo driver/Compiler.glob: driver/Compiler.v lib/Axioms.vo lib/Coqlib.vo lib/Maps.vo common/Errors.vo common/AST.vo common/Values.vo common/Smallstep.vo cfrontend/Csyntax.vo cfrontend/Csem.vo cfrontend/Cstrategy.vo cfrontend/Cexec.vo cfrontend/Clight.vo cfrontend/Csharpminor.vo backend/Cminor.vo backend/CminorSel.vo backend/RTL.vo backend/LTL.vo backend/LTLin.vo backend/Linear.vo backend/Mach.vo backend/Machsem.vo $(ARCH)/Asm.vo cfrontend/Initializers.vo cfrontend/SimplExpr.vo cfrontend/Cshmgen.vo cfrontend/Cminorgen.vo backend/Selection.vo backend/RTLgen.vo backend/Tailcall.vo backend/CastOptim.vo backend/Constprop.vo backend/CSE.vo backend/Allocation.vo backend/Tunneling.vo backend/Linearize.vo backend/CleanupLabels.vo backend/Reload.vo backend/RRE.vo backend/Stacking.vo $(ARCH)/Asmgen.vo backend/RTLtyping.vo backend/LTLtyping.vo backend/LTLintyping.vo backend/Lineartyping.vo backend/Machtyping.vo cfrontend/SimplExprproof.vo cfrontend/Cshmgenproof.vo cfrontend/Cminorgenproof.vo backend/Selectionproof.vo backend/RTLgenproof.vo backend/Tailcallproof.vo backend/CastOptimproof.vo backend/Constpropproof.vo backend/CSEproof.vo backend/Allocproof.vo backend/Alloctyping.vo backend/Tunnelingproof.vo backend/Tunnelingtyping.vo backend/Linearizeproof.vo backend/Linearizetyping.vo backend/CleanupLabelsproof.vo backend/CleanupLabelstyping.vo backend/Reloadproof.vo backend/Reloadtyping.vo backend/RREproof.vo backend/RREtyping.vo backend/Stackingproof.vo backend/Stackingtyping.vo $(ARCH)/Asmgenproof.vo
+driver/Compiler.vo driver/Compiler.glob: driver/Compiler.v lib/Axioms.vo lib/Coqlib.vo lib/Maps.vo common/Errors.vo common/AST.vo common/Values.vo common/Smallstep.vo cfrontend/Csyntax.vo cfrontend/Csem.vo cfrontend/Cstrategy.vo cfrontend/Cexec.vo cfrontend/Clight.vo cfrontend/Csharpminor.vo backend/Cminor.vo backend/CminorSel.vo backend/RTL.vo backend/LTL.vo backend/LTLin.vo backend/Linear.vo backend/Mach.vo backend/Machsem.vo $(ARCH)/Asm.vo cfrontend/Initializers.vo cfrontend/SimplExpr.vo cfrontend/Cshmgen.vo cfrontend/Cminorgen.vo backend/Selection.vo backend/RTLgen.vo backend/Tailcall.vo backend/Constprop.vo backend/CSE.vo backend/Allocation.vo backend/Tunneling.vo backend/Linearize.vo backend/CleanupLabels.vo backend/Reload.vo backend/RRE.vo backend/Stacking.vo $(ARCH)/Asmgen.vo backend/RTLtyping.vo backend/LTLtyping.vo backend/LTLintyping.vo backend/Lineartyping.vo backend/Machtyping.vo cfrontend/SimplExprproof.vo cfrontend/Cshmgenproof.vo cfrontend/Cminorgenproof.vo backend/Selectionproof.vo backend/RTLgenproof.vo backend/Tailcallproof.vo backend/Constpropproof.vo backend/CSEproof.vo backend/Allocproof.vo backend/Alloctyping.vo backend/Tunnelingproof.vo backend/Tunnelingtyping.vo backend/Linearizeproof.vo backend/Linearizetyping.vo backend/CleanupLabelsproof.vo backend/CleanupLabelstyping.vo backend/Reloadproof.vo backend/Reloadtyping.vo backend/RREproof.vo backend/RREtyping.vo backend/Stackingproof.vo backend/Stackingtyping.vo $(ARCH)/Asmgenproof.vo
 driver/Complements.vo driver/Complements.glob: driver/Complements.v lib/Coqlib.vo common/AST.vo lib/Integers.vo common/Values.vo common/Events.vo common/Globalenvs.vo common/Smallstep.vo common/Behaviors.vo cfrontend/Csyntax.vo cfrontend/Csem.vo cfrontend/Cstrategy.vo cfrontend/Clight.vo backend/Cminor.vo backend/RTL.vo $(ARCH)/Asm.vo driver/Compiler.vo common/Errors.vo