Merge tag '4.14.1' into main

release 4.14.1

Changes

@@ -1,6 +1,22 @@
-OCaml 4.14 maintenance branch
+OCaml 4.14.1 (20 December 2022)
+------------------------------
+
+### Bug fixes:
+
+- #11803, #11808: on x86, the destination of an integer comparison must be
+  a register, it cannot be a stack slot.
+  (Vincent Laviron, review by Xavier Leroy, report by
+   Emilio Jesús Gallego Arias)
+
+
+OCaml 4.14.1
 -----------------------------
 
+### Compiler user-interface and warnings:
+
+- #11184, #11670: Stop calling ranlib on created / installed libraries
+  (Sébastien Hinderer and Xavier Leroy, review by the same)
+
 ### Build system:
 
 - #11370, #11373: Don't pass CFLAGS to flexlink during configure.
@@ -12,6 +28,10 @@ OCaml 4.14 maintenance branch
 
 ### Bug fixes:
 
+- #10768, #11340: Fix typechecking regression when combining first class
+  modules and GADTs.
+  (Jacques Garrigue, report by François Thiré, review by Matthew Ryan)
+
 - #11204: Fix regression introduced in 4.14.0 that would trigger Warning 17 when
   calling virtual methods introduced by constraining the self type from within
   the class definition.
@@ -50,6 +70,34 @@ OCaml 4.14 maintenance branch
 - #11516, #11524: Fix the `deprecated_mutable` attribute.
   (Chris Casinghino, review by Nicolás Ojeda Bär and Florian Angeletti)
 
+- #11194, #11609: Fix inconsistent type variable names in "unbound type var"
+  messages
+  (Ulysse Gérard and Florian Angeletti, review Florian Angeletti and
+   Gabriel Scherer)
+
+- #11622: Prevent stack overflow when printing a constructor or record
+  mismatch error involving recursive types.
+  (Florian Angeletti, review by Gabriel Scherer)
+
+- #11732: Ensure that types from packed modules are always generalised
+  (Stephen Dolan and Leo White, review by Jacques Garrigue)
+
+- #11737: Fix segfault condition in Unix.stat under Windows in the presence of
+  multiple threads.
+  (Marc Lasson, Nicolás Ojeda Bär, review by Gabriel Scherer and David Allsopp)
+
+- #11776: Extend environment with functor parameters in `strengthen_lazy`.
+  (Chris Casinghino and Luke Maurer, review by Gabriel Scherer)
+
+- #11533, #11534: follow synonyms again in #show_module_type
+  (this had stopped working in 4.14.0)
+  (Gabriel Scherer, review by Jacques Garrigue, report by Yaron Minsky)
+
+- #11768, #11788: Fix crash at start-up of bytecode programs in
+  no-naked-pointers mode caused by wrong initialization of caml_global_data
+  (Xavier Leroy, report by Etienne Millon, review by Gabriel Scherer)
+
+
 OCaml 4.14.0 (28 March 2022)
 ----------------------------
 

README.win32.adoc

@@ -63,9 +63,7 @@ Only the `make` Cygwin package is required. `diffutils` is required if you wish
 to be able to run the test suite.
 
 Unless you are also compiling the Cygwin port of OCaml, you do not need the
-`gcc-core` or `flexdll` packages. If you do install them, care may be required
-to ensure that a particular build is using the correct installation of
-`flexlink`.
+`gcc-core` or `flexdll` packages.
 
 [[bmflex]]
 In addition to Cygwin, FlexDLL must also be installed, which is available from
@@ -197,7 +195,7 @@ quickly as it will be unable to link `ocamlrun`.
 
 Now run:
 
-        ./configure --build=i686-pc-cygwin --host=i686-pc-windows
+        ./configure --build=x86_64-pc-cygwin --host=i686-pc-windows
 
 for 32-bit, or:
 
@@ -262,7 +260,7 @@ the WinZip Options Window.)
 
 Now run:
 
-        ./configure --build=i686-pc-cygwin --host=i686-w64-mingw32
+        ./configure --build=x86_64-pc-cygwin --host=i686-w64-mingw32
 
 for 32-bit, or:
 

VERSION

@@ -1,4 +1,4 @@
-4.14.0+jst
+4.14.1+jst
 
 # Starting with OCaml 4.14, although the version string that appears above is
 # still correct and this file can thus still be used to figure it out,

asmcomp/amd64/reload.ml

@@ -33,14 +33,15 @@ open Mach
      Iload                      R       R       R
      Istore                             R       R
      Iintop(Icomp)              R       R       S
-                            or  S       S       R
+                            or  R       S       R
      Iintop(Imul|Idiv|Imod)     R       R       S
      Iintop(Imulh)              R       R       S
      Iintop(shift)              S       S       R
      Iintop(others)             R       R       S
                             or  S       S       R
      Iintop_imm(Iadd, n)/lea    R       R
      Iintop_imm(Imul, n)        R       R
+     Iintop_imm(Icomp, n)       R       S
      Iintop_imm(others)         S       S
      Inegf...Idivf              R       R       S
      Ifloatofint                R       S
@@ -66,7 +67,14 @@ inherit Reloadgen.reload_generic as super
 
 method! reload_operation op arg res =
   match op with
-  | Iintop(Iadd|Isub|Iand|Ior|Ixor|Icomp _|Icheckbound) ->
+  | Iintop(Iadd|Isub|Iand|Ior|Ixor|Icheckbound) ->
+      (* One of the two arguments can reside in the stack, but not both *)
+      if stackp arg.(0) && stackp arg.(1)
+      then ([|arg.(0); self#makereg arg.(1)|], res)
+      else (arg, res)
+  | Iintop(Icomp _) ->
+      (* The result must be a register (PR#11803) *)
+      let res = self#makeregs res in
       (* One of the two arguments can reside in the stack, but not both *)
       if stackp arg.(0) && stackp arg.(1)
       then ([|arg.(0); self#makereg arg.(1)|], res)
@@ -80,6 +88,9 @@ method! reload_operation op arg res =
       if stackp arg.(0)
       then (let r = self#makereg arg.(0) in ([|r|], [|r|]))
       else (arg, res)
+  | Iintop_imm(Icomp _, _) ->
+      (* The result must be in a register (PR#11803) *)
+      (arg, self#makeregs res)
   | Iintop(Imulh | Idiv | Imod | Ilsl | Ilsr | Iasr)
   | Iintop_imm(_, _) ->
       (* The argument(s) and results can be either in register or on stack *)

asmcomp/i386/reload.ml

@@ -40,7 +40,14 @@ method! makereg r =
 
 method! reload_operation op arg res =
   match op with
-    Iintop(Iadd|Isub|Iand|Ior|Ixor|Icomp _|Icheckbound) ->
+    Iintop(Iadd|Isub|Iand|Ior|Ixor|Icheckbound) ->
+      (* One of the two arguments can reside in the stack *)
+      if stackp arg.(0) && stackp arg.(1)
+      then ([|arg.(0); self#makereg arg.(1)|], res)
+      else (arg, res)
+  | Iintop(Icomp _) ->
+      (* The result must be a register (PR#11803) *)
+      let res = self#makeregs res in
       (* One of the two arguments can reside in the stack *)
       if stackp arg.(0) && stackp arg.(1)
       then ([|arg.(0); self#makereg arg.(1)|], res)
@@ -60,6 +67,9 @@ method! reload_operation op arg res =
       if stackp arg.(0)
       then let r = self#makereg arg.(0) in ([|r|], [|r|])
       else (arg, res)
+  | Iintop_imm(Icomp _, _) ->
+      (* The result must be in a register (PR#11803) *)
+      (arg, self#makeregs res)
   | Iintop(Imulh | Ilsl | Ilsr | Iasr) | Iintop_imm(_, _)
   | Ifloatofint | Iintoffloat | Ispecific(Ipush) ->
       (* The argument(s) can be either in register or on stack *)

asmcomp/reloadgen.ml

@@ -46,7 +46,7 @@ method makereg r =
       newr.spill_cost <- 100000;
       newr
 
-method private makeregs rv =
+method makeregs rv =
   let n = Array.length rv in
   let newv = Array.make n Reg.dummy in
   for i = 0 to n-1 do newv.(i) <- self#makereg rv.(i) done;

asmcomp/reloadgen.mli

@@ -20,6 +20,7 @@ class reload_generic : object
     (* Can be overridden to reflect instructions that can operate
        directly on stack locations *)
   method makereg : Reg.t -> Reg.t
+  method makeregs : Reg.t array -> Reg.t array
     (* Can be overridden to avoid creating new registers of some class
        (i.e. if all "registers" of that class are actually on stack) *)
   method fundecl : Mach.fundecl -> int array -> Mach.fundecl * bool

build-aux/ocaml_version.m4

@@ -25,7 +25,7 @@
 # The following macro, OCAML__DEVELOPMENT_VERSION, should be either
 # [true] of [false].
 
-m4_define([OCAML__DEVELOPMENT_VERSION], [true])
+m4_define([OCAML__DEVELOPMENT_VERSION], [false])
 
 # The three following components (major, minor and patch level) MUST be
 # integers. They MUST NOT be left-padded with zeros and all of them,