Merge of branch linear-typing:

1) Revised division of labor between RTLtyping and Lineartyping:
- RTLtyping no longer keeps track of single-precision floats,
  switches from subtype-based inference to unification-based inference.
- Unityping: new library for unification-based inference.
- Locations: don't normalize at assignment in a stack slot
- Allocation, Allocproof: simplify accordingly.
- Lineartyping: add inference of locations that contain
  a single-precision float.
- Stackingproof: adapted accordingly.

This addresses a defect report whereas RTLtyping was rejecting code that used a RTL pseudoreg to hold both double- and single-precision floats (see test/regression/singlefloats.c).

This corresponds to commits 2435+2436 plus improvements in Lineartyping.

2) Add -dtimings option to measure compilation times.
Moved call to C parser from Elab to Parse, to make it easier to
measure parsing time independently of elaboration time.


git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2449 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e

1 files changed, 10 insertions, 10 deletions

diff --git a/.depend b/.depend
index bcddfbc..7307c32 100644
--- a/.depend
+++ b/.depend
@@ -27,7 +27,7 @@ common/Smallstep.vo common/Smallstep.glob common/Smallstep.v.beautified: common/
 common/Behaviors.vo common/Behaviors.glob common/Behaviors.v.beautified: common/Behaviors.v lib/Coqlib.vo common/Events.vo common/Globalenvs.vo lib/Integers.vo common/Smallstep.vo
 common/Switch.vo common/Switch.glob common/Switch.v.beautified: common/Switch.v lib/Coqlib.vo lib/Maps.vo lib/Integers.vo
 common/Determinism.vo common/Determinism.glob common/Determinism.v.beautified: common/Determinism.v lib/Coqlib.vo common/AST.vo lib/Integers.vo common/Events.vo common/Globalenvs.vo common/Smallstep.vo common/Behaviors.vo
-common/Subtyping.vo common/Subtyping.glob common/Subtyping.v.beautified: common/Subtyping.v lib/Coqlib.vo lib/Maps.vo common/Errors.vo
+common/Unityping.vo common/Unityping.glob common/Unityping.v.beautified: common/Unityping.v lib/Coqlib.vo lib/Maps.vo common/Errors.vo
 backend/Cminor.vo backend/Cminor.glob backend/Cminor.v.beautified: backend/Cminor.v lib/Coqlib.vo lib/Maps.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Events.vo common/Values.vo common/Memory.vo common/Globalenvs.vo common/Smallstep.vo common/Switch.vo
 $(ARCH)/Op.vo $(ARCH)/Op.glob $(ARCH)/Op.v.beautified: $(ARCH)/Op.v lib/Coqlib.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo common/Events.vo
 backend/CminorSel.vo backend/CminorSel.glob backend/CminorSel.v.beautified: backend/CminorSel.v lib/Coqlib.vo lib/Maps.vo common/AST.vo lib/Integers.vo common/Events.vo common/Values.vo common/Memory.vo backend/Cminor.vo $(ARCH)/Op.vo common/Globalenvs.vo common/Switch.vo common/Smallstep.vo
@@ -35,7 +35,7 @@ $(ARCH)/SelectOp.vo $(ARCH)/SelectOp.glob $(ARCH)/SelectOp.v.beautified: $(ARCH)
 backend/SelectDiv.vo backend/SelectDiv.glob backend/SelectDiv.v.beautified: backend/SelectDiv.v lib/Coqlib.vo driver/Compopts.vo common/AST.vo lib/Integers.vo lib/Floats.vo $(ARCH)/Op.vo backend/CminorSel.vo $(ARCH)/SelectOp.vo
 backend/SelectLong.vo backend/SelectLong.glob backend/SelectLong.v.beautified: backend/SelectLong.v lib/Coqlib.vo common/AST.vo lib/Integers.vo lib/Floats.vo $(ARCH)/Op.vo backend/CminorSel.vo $(ARCH)/SelectOp.vo common/Errors.vo
 backend/Selection.vo backend/Selection.glob backend/Selection.v.beautified: backend/Selection.v lib/Coqlib.vo common/AST.vo common/Errors.vo lib/Integers.vo common/Globalenvs.vo backend/Cminor.vo $(ARCH)/Op.vo backend/CminorSel.vo $(ARCH)/SelectOp.vo backend/SelectDiv.vo backend/SelectLong.vo
-$(ARCH)/SelectOpproof.vo $(ARCH)/SelectOpproof.glob $(ARCH)/SelectOpproof.v.beautified: $(ARCH)/SelectOpproof.v lib/Coqlib.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo backend/Cminor.vo $(ARCH)/Op.vo backend/CminorSel.vo $(ARCH)/SelectOp.vo
+$(ARCH)/SelectOpproof.vo $(ARCH)/SelectOpproof.glob $(ARCH)/SelectOpproof.v.beautified: $(ARCH)/SelectOpproof.v lib/Coqlib.vo lib/Maps.vo driver/Compopts.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo backend/Cminor.vo $(ARCH)/Op.vo backend/CminorSel.vo $(ARCH)/SelectOp.vo
 backend/SelectDivproof.vo backend/SelectDivproof.glob backend/SelectDivproof.v.beautified: backend/SelectDivproof.v lib/Coqlib.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo common/Events.vo backend/Cminor.vo $(ARCH)/Op.vo backend/CminorSel.vo $(ARCH)/SelectOp.vo $(ARCH)/SelectOpproof.vo backend/SelectDiv.vo
 backend/SelectLongproof.vo backend/SelectLongproof.glob backend/SelectLongproof.v.beautified: backend/SelectLongproof.v lib/Coqlib.vo common/AST.vo common/Errors.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo common/Events.vo backend/Cminor.vo $(ARCH)/Op.vo backend/CminorSel.vo $(ARCH)/SelectOp.vo $(ARCH)/SelectOpproof.vo backend/SelectLong.vo
 backend/Selectionproof.vo backend/Selectionproof.glob backend/Selectionproof.v.beautified: backend/Selectionproof.v lib/Coqlib.vo lib/Maps.vo common/AST.vo common/Errors.vo lib/Integers.vo common/Values.vo common/Memory.vo common/Events.vo common/Globalenvs.vo common/Smallstep.vo backend/Cminor.vo $(ARCH)/Op.vo backend/CminorSel.vo $(ARCH)/SelectOp.vo backend/SelectDiv.vo backend/SelectLong.vo backend/Selection.vo $(ARCH)/SelectOpproof.vo backend/SelectDivproof.vo backend/SelectLongproof.vo
@@ -51,7 +51,7 @@ backend/Inliningspec.vo backend/Inliningspec.glob backend/Inliningspec.v.beautif
 backend/Inliningproof.vo backend/Inliningproof.glob backend/Inliningproof.v.beautified: backend/Inliningproof.v lib/Coqlib.vo common/Errors.vo lib/Maps.vo common/AST.vo lib/Integers.vo common/Values.vo common/Memory.vo common/Globalenvs.vo common/Events.vo common/Smallstep.vo $(ARCH)/Op.vo backend/Registers.vo backend/Inlining.vo backend/Inliningspec.vo backend/RTL.vo
 backend/Renumber.vo backend/Renumber.glob backend/Renumber.v.beautified: backend/Renumber.v lib/Coqlib.vo lib/Maps.vo lib/Postorder.vo backend/RTL.vo
 backend/Renumberproof.vo backend/Renumberproof.glob backend/Renumberproof.v.beautified: backend/Renumberproof.v lib/Coqlib.vo lib/Maps.vo lib/Postorder.vo common/Events.vo common/Globalenvs.vo common/Smallstep.vo $(ARCH)/Op.vo backend/Registers.vo backend/RTL.vo backend/Renumber.vo
-backend/RTLtyping.vo backend/RTLtyping.glob backend/RTLtyping.v.beautified: backend/RTLtyping.v lib/Coqlib.vo common/Errors.vo common/Subtyping.vo lib/Maps.vo common/AST.vo $(ARCH)/Op.vo backend/Registers.vo common/Globalenvs.vo common/Values.vo lib/Integers.vo common/Memory.vo common/Events.vo backend/RTL.vo backend/Conventions.vo
+backend/RTLtyping.vo backend/RTLtyping.glob backend/RTLtyping.v.beautified: backend/RTLtyping.v lib/Coqlib.vo common/Errors.vo common/Unityping.vo lib/Maps.vo common/AST.vo $(ARCH)/Op.vo backend/Registers.vo common/Globalenvs.vo common/Values.vo lib/Integers.vo common/Memory.vo common/Events.vo backend/RTL.vo backend/Conventions.vo
 backend/Kildall.vo backend/Kildall.glob backend/Kildall.v.beautified: backend/Kildall.v lib/Coqlib.vo lib/Iteration.vo lib/Maps.vo lib/Lattice.vo lib/Heaps.vo
 backend/Liveness.vo backend/Liveness.glob backend/Liveness.v.beautified: backend/Liveness.v lib/Coqlib.vo lib/Maps.vo lib/Lattice.vo common/AST.vo $(ARCH)/Op.vo backend/Registers.vo backend/RTL.vo backend/Kildall.vo
 backend/ValueDomain.vo backend/ValueDomain.glob backend/ValueDomain.v.beautified: backend/ValueDomain.v lib/Coqlib.vo lib/Maps.vo driver/Compopts.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo common/Events.vo lib/Lattice.vo backend/Kildall.vo backend/Registers.vo backend/RTL.vo
@@ -59,18 +59,18 @@ $(ARCH)/ValueAOp.vo $(ARCH)/ValueAOp.glob $(ARCH)/ValueAOp.v.beautified: $(ARCH)
 backend/ValueAnalysis.vo backend/ValueAnalysis.glob backend/ValueAnalysis.v.beautified: backend/ValueAnalysis.v lib/Coqlib.vo lib/Maps.vo driver/Compopts.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo common/Events.vo lib/Lattice.vo backend/Kildall.vo backend/Registers.vo $(ARCH)/Op.vo backend/RTL.vo backend/ValueDomain.vo $(ARCH)/ValueAOp.vo backend/Liveness.vo lib/Axioms.vo
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 backend/Constprop.vo backend/Constprop.glob backend/Constprop.v.beautified: backend/Constprop.v lib/Coqlib.vo lib/Maps.vo common/AST.vo lib/Integers.vo lib/Floats.vo $(ARCH)/Op.vo backend/Registers.vo backend/RTL.vo lib/Lattice.vo backend/Kildall.vo backend/Liveness.vo backend/ValueDomain.vo $(ARCH)/ValueAOp.vo backend/ValueAnalysis.vo $(ARCH)/ConstpropOp.vo
-$(ARCH)/ConstpropOpproof.vo $(ARCH)/ConstpropOpproof.glob $(ARCH)/ConstpropOpproof.v.beautified: $(ARCH)/ConstpropOpproof.v lib/Coqlib.vo driver/Compopts.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo common/Events.vo $(ARCH)/Op.vo backend/Registers.vo backend/RTL.vo backend/ValueDomain.vo $(ARCH)/ConstpropOp.vo
+$(ARCH)/ConstpropOpproof.vo $(ARCH)/ConstpropOpproof.glob $(ARCH)/ConstpropOpproof.v.beautified: $(ARCH)/ConstpropOpproof.v lib/Coqlib.vo driver/Compopts.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo common/Events.vo $(ARCH)/Op.vo backend/Registers.vo backend/RTL.vo backend/ValueDomain.vo $(ARCH)/ConstpropOp.vo
 backend/Constpropproof.vo backend/Constpropproof.glob backend/Constpropproof.v.beautified: backend/Constpropproof.v lib/Coqlib.vo lib/Maps.vo driver/Compopts.vo common/AST.vo lib/Integers.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/ValueDomain.vo $(ARCH)/ValueAOp.vo backend/ValueAnalysis.vo $(ARCH)/ConstpropOp.vo backend/Constprop.vo $(ARCH)/ConstpropOpproof.vo
 backend/CSEdomain.vo backend/CSEdomain.glob backend/CSEdomain.v.beautified: backend/CSEdomain.v lib/Coqlib.vo lib/Maps.vo common/AST.vo common/Values.vo common/Memory.vo $(ARCH)/Op.vo backend/Registers.vo backend/RTL.vo
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-$(ARCH)/CombineOpproof.vo $(ARCH)/CombineOpproof.glob $(ARCH)/CombineOpproof.v.beautified: $(ARCH)/CombineOpproof.v lib/Coqlib.vo lib/Integers.vo common/Values.vo common/Memory.vo $(ARCH)/Op.vo backend/RTL.vo backend/CSEdomain.vo $(ARCH)/CombineOp.vo
+$(ARCH)/CombineOpproof.vo $(ARCH)/CombineOpproof.glob $(ARCH)/CombineOpproof.v.beautified: $(ARCH)/CombineOpproof.v lib/Coqlib.vo common/AST.vo lib/Integers.vo common/Values.vo common/Memory.vo $(ARCH)/Op.vo backend/Registers.vo backend/RTL.vo backend/CSEdomain.vo $(ARCH)/CombineOp.vo
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 backend/NeedDomain.vo backend/NeedDomain.glob backend/NeedDomain.v.beautified: backend/NeedDomain.v lib/Coqlib.vo lib/Maps.vo lib/IntvSets.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo common/Events.vo lib/Lattice.vo backend/Registers.vo backend/ValueDomain.vo $(ARCH)/Op.vo backend/RTL.vo
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 backend/Deadcode.vo backend/Deadcode.glob backend/Deadcode.v.beautified: backend/Deadcode.v lib/Coqlib.vo common/Errors.vo lib/Maps.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Memory.vo backend/Registers.vo $(ARCH)/Op.vo backend/RTL.vo lib/Lattice.vo backend/Kildall.vo backend/ValueDomain.vo backend/ValueAnalysis.vo backend/NeedDomain.vo $(ARCH)/NeedOp.vo
 backend/Deadcodeproof.vo backend/Deadcodeproof.glob backend/Deadcodeproof.v.beautified: backend/Deadcodeproof.v lib/Coqlib.vo common/Errors.vo lib/Maps.vo lib/IntvSets.vo common/AST.vo lib/Integers.vo lib/Floats.vo common/Values.vo common/Memory.vo common/Globalenvs.vo common/Events.vo common/Smallstep.vo $(ARCH)/Op.vo backend/Registers.vo backend/RTL.vo lib/Lattice.vo backend/Kildall.vo backend/ValueDomain.vo backend/ValueAnalysis.vo backend/NeedDomain.vo $(ARCH)/NeedOp.vo backend/Deadcode.vo
-$(ARCH)/Machregs.vo $(ARCH)/Machregs.glob $(ARCH)/Machregs.v.beautified: $(ARCH)/Machregs.v lib/Coqlib.vo lib/Maps.vo common/AST.vo lib/Integers.vo $(ARCH)/Op.vo
+$(ARCH)/Machregs.vo $(ARCH)/Machregs.glob $(ARCH)/Machregs.v.beautified: $(ARCH)/Machregs.v lib/Coqlib.vo lib/Maps.vo common/AST.vo $(ARCH)/Op.vo
 backend/Locations.vo backend/Locations.glob backend/Locations.v.beautified: backend/Locations.v lib/Coqlib.vo lib/Maps.vo lib/Ordered.vo common/AST.vo common/Values.vo $(ARCH)/Machregs.vo
 $(ARCH)/$(VARIANT)/Conventions1.vo $(ARCH)/$(VARIANT)/Conventions1.glob $(ARCH)/$(VARIANT)/Conventions1.v.beautified: $(ARCH)/$(VARIANT)/Conventions1.v lib/Coqlib.vo common/AST.vo backend/Locations.vo
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@@ -80,7 +80,7 @@ backend/Allocproof.vo backend/Allocproof.glob backend/Allocproof.v.beautified: b
 backend/Tunneling.vo backend/Tunneling.glob backend/Tunneling.v.beautified: backend/Tunneling.v lib/Coqlib.vo lib/Maps.vo lib/UnionFind.vo common/AST.vo backend/LTL.vo
 backend/Tunnelingproof.vo backend/Tunnelingproof.glob backend/Tunnelingproof.v.beautified: backend/Tunnelingproof.v lib/Coqlib.vo lib/Maps.vo lib/UnionFind.vo common/AST.vo common/Values.vo common/Memory.vo common/Events.vo common/Globalenvs.vo common/Smallstep.vo $(ARCH)/Op.vo backend/Locations.vo backend/LTL.vo backend/Tunneling.vo
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-backend/Lineartyping.vo backend/Lineartyping.glob backend/Lineartyping.v.beautified: backend/Lineartyping.v lib/Coqlib.vo common/AST.vo lib/Integers.vo common/Values.vo common/Events.vo $(ARCH)/Op.vo backend/Locations.vo backend/Conventions.vo backend/LTL.vo backend/Linear.vo
+backend/Lineartyping.vo backend/Lineartyping.glob backend/Lineartyping.v.beautified: backend/Lineartyping.v lib/Coqlib.vo lib/Ordered.vo lib/Maps.vo lib/Iteration.vo common/AST.vo lib/Integers.vo common/Values.vo common/Events.vo $(ARCH)/Op.vo $(ARCH)/Machregs.vo backend/Locations.vo backend/Conventions.vo backend/LTL.vo backend/Linear.vo common/Globalenvs.vo common/Memory.vo
 backend/Linearize.vo backend/Linearize.glob backend/Linearize.v.beautified: backend/Linearize.v lib/Coqlib.vo lib/Maps.vo lib/Ordered.vo common/AST.vo common/Errors.vo $(ARCH)/Op.vo backend/Locations.vo backend/LTL.vo backend/Linear.vo backend/Kildall.vo lib/Lattice.vo
 backend/Linearizeproof.vo backend/Linearizeproof.glob backend/Linearizeproof.v.beautified: backend/Linearizeproof.v lib/Coqlib.vo lib/Maps.vo lib/Ordered.vo lib/Lattice.vo common/AST.vo lib/Integers.vo common/Values.vo common/Memory.vo common/Events.vo common/Globalenvs.vo common/Errors.vo common/Smallstep.vo $(ARCH)/Op.vo backend/Locations.vo backend/LTL.vo backend/Linear.vo backend/Linearize.vo
 backend/CleanupLabels.vo backend/CleanupLabels.glob backend/CleanupLabels.v.beautified: backend/CleanupLabels.v lib/Coqlib.vo lib/Ordered.vo backend/Linear.vo
@@ -91,10 +91,10 @@ $(ARCH)/$(VARIANT)/Stacklayout.vo $(ARCH)/$(VARIANT)/Stacklayout.glob $(ARCH)/$(
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+$(ARCH)/Asmgen.vo $(ARCH)/Asmgen.glob $(ARCH)/Asmgen.v.beautified: $(ARCH)/Asmgen.v lib/Coqlib.vo common/Errors.vo common/AST.vo lib/Integers.vo lib/Floats.vo $(ARCH)/Op.vo backend/Locations.vo backend/Mach.vo $(ARCH)/Asm.vo
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-$(ARCH)/Asmgenproof1.vo $(ARCH)/Asmgenproof1.glob $(ARCH)/Asmgenproof1.v.beautified: $(ARCH)/Asmgenproof1.v lib/Coqlib.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 $(ARCH)/Asmgen.vo backend/Asmgenproof0.vo backend/Conventions.vo
-$(ARCH)/Asmgenproof.vo $(ARCH)/Asmgenproof.glob $(ARCH)/Asmgenproof.v.beautified: $(ARCH)/Asmgenproof.v lib/Coqlib.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/Conventions.vo $(ARCH)/Asm.vo $(ARCH)/Asmgen.vo backend/Asmgenproof0.vo $(ARCH)/Asmgenproof1.vo
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+$(ARCH)/Asmgenproof.vo $(ARCH)/Asmgenproof.glob $(ARCH)/Asmgenproof.v.beautified: $(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 $(ARCH)/Asm.vo $(ARCH)/Asmgen.vo backend/Asmgenproof0.vo $(ARCH)/Asmgenproof1.vo
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