---

yaml
---
r: 273917
b: refs/heads/beta
c: 37cadec
h: refs/heads/master
i:
  273915: e3d6603

Author: Manishearth

[refs]

@@ -23,7 +23,7 @@ refs/tags/0.9: 36870b185fc5f5486636d4515f0e22677493f225
 refs/tags/0.10: ac33f2b15782272ae348dbd7b14b8257b2148b5a
 refs/tags/0.11.0: e1247cb1d0d681be034adb4b558b5a0c0d5720f9
 refs/tags/0.12.0: f0c419429ef30723ceaf6b42f9b5a2aeb5d2e2d1
-refs/heads/beta: 9f3de647326fbe50e0e283b9018ab7c41abccde3
+refs/heads/beta: 37cadec16e235ccf2197dc09f66216aeb616c84c
 refs/tags/1.0.0-alpha: e42bd6d93a1d3433c486200587f8f9e12590a4d7
 refs/heads/tmp: e06d2ad9fcd5027bcaac5b08fc9aa39a49d0ecd3
 refs/tags/1.0.0-alpha.2: 4c705f6bc559886632d3871b04f58aab093bfa2f

branches/beta/COMPILER_TESTS.md

@@ -77,7 +77,7 @@ fn test_foo() {
 }
 ```
 
-Note that not all headers have meaning when customized too a revision.
+Note that not all headers have meaning when customized to a revision.
 For example, the `ignore-test` header (and all "ignore" headers)
 currently only apply to the test as a whole, not to particular
 revisions. The only headers that are intended to really work when

branches/beta/CONTRIBUTING.md

@@ -71,7 +71,8 @@ which includes important information about what platform you're on, what
 version of Rust you're using, etc.
 
 Sometimes, a backtrace is helpful, and so including that is nice. To get
-a backtrace, set the `RUST_BACKTRACE` environment variable. The easiest way
+a backtrace, set the `RUST_BACKTRACE` environment variable to a value
+other than `0`. The easiest way
 to do this is to invoke `rustc` like this:
 
 ```bash
@@ -132,8 +133,8 @@ Some common make targets are:
 - `make check-stage1-std NO_REBUILD=1` - test the standard library without
   rebuilding the entire compiler
 - `make check TESTNAME=<substring-of-test-name>` - Run a matching set of tests.
-  - `TESTNAME` should be a substring of the tests to match against e.g. it could 
-    be the fully qualified test name, or just a part of it. 
+  - `TESTNAME` should be a substring of the tests to match against e.g. it could
+    be the fully qualified test name, or just a part of it.
     `TESTNAME=collections::hash::map::test_map::test_capacity_not_less_than_len`
     or `TESTNAME=test_capacity_not_less_than_len`.
 - `make check-stage1-rpass TESTNAME=<substring-of-test-name>` - Run a single

branches/beta/README.md

@@ -77,7 +77,7 @@ build.
 
 Download [MinGW from
 here](http://mingw-w64.org/doku.php/download/mingw-builds), and choose the
-`threads=win32,exceptions=dwarf/seh` flavor when installing. Also, make sure to install to a path without spaces in it. After installing,
+`version=4.9.x,threads=win32,exceptions=dwarf/seh` flavor when installing. Also, make sure to install to a path without spaces in it. After installing,
 add its `bin` directory to your `PATH`. This is due to [#28260](https://github.com/rust-lang/rust/issues/28260), in the future,
 installing from pacman should be just fine.
 
@@ -177,10 +177,11 @@ To contribute to Rust, please see [CONTRIBUTING](CONTRIBUTING.md).
 Rust has an [IRC] culture and most real-time collaboration happens in a
 variety of channels on Mozilla's IRC network, irc.mozilla.org. The
 most popular channel is [#rust], a venue for general discussion about
-Rust, and a good place to ask for help.
+Rust. And a good place to ask for help would be [#rust-beginners].
 
 [IRC]: https://en.wikipedia.org/wiki/Internet_Relay_Chat
 [#rust]: irc://irc.mozilla.org/rust
+[#rust-beginners]: irc://irc.mozilla.org/rust-beginners
 
 ## License
 

branches/beta/RELEASES.md

@@ -116,8 +116,8 @@ Compatibility Notes
   that were not intended. In this release, [defaulted type parameters
   appearing outside of type definitions will generate a
   warning][1.7d], which will become an error in future releases.
-* [Parsing "." as a float results in an error instead of
-  0][1.7p]. That is, `".".parse::<f32>()` returns `Err`, not `Ok(0)`.
+* [Parsing "." as a float results in an error instead of 0][1.7p].
+  That is, `".".parse::<f32>()` returns `Err`, not `Ok(0.0)`.
 * [Borrows of closure parameters may not outlive the closure][1.7bc].
 
 [1.7a]: https://github.com/rust-lang/rust/pull/30928

branches/beta/configure

@@ -608,6 +608,7 @@ opt inject-std-version 1 "inject the current compiler version of libstd into pro
 opt llvm-version-check 1 "check if the LLVM version is supported, build anyway"
 opt rustbuild 0 "use the rust and cargo based build system"
 opt orbit 0 "get MIR where it belongs - everywhere; most importantly, in orbit"
+opt codegen-tests 1 "run the src/test/codegen tests"
 
 # Optimization and debugging options. These may be overridden by the release channel, etc.
 opt_nosave optimize 1 "build optimized rust code"
@@ -969,11 +970,11 @@ then
     LLVM_VERSION=$($LLVM_CONFIG --version)
 
     case $LLVM_VERSION in
-        (3.[5-8]*)
+        (3.[6-8]*)
             msg "found ok version of LLVM: $LLVM_VERSION"
             ;;
         (*)
-            err "bad LLVM version: $LLVM_VERSION, need >=3.5"
+            err "bad LLVM version: $LLVM_VERSION, need >=3.6"
             ;;
     esac
 fi
@@ -1034,7 +1035,7 @@ then
         if [ -n "$CFG_OSX_CLANG_VERSION" ]
         then
             case $CFG_OSX_CLANG_VERSION in
-                (7.0* | 7.1* | 7.2*)
+                (7.0* | 7.1* | 7.2* | 7.3*)
                 step_msg "found ok version of APPLE CLANG: $CFG_OSX_CLANG_VERSION"
                 ;;
                 (*)
@@ -1252,7 +1253,7 @@ $ pacman -R cmake && pacman -S mingw-w64-x86_64-cmake
                     bits=x86_64
                     msvc_part=amd64
                     ;;
-                i686-*)
+                i*86-*)
                     bits=i386
                     msvc_part=
                     ;;
@@ -1497,7 +1498,9 @@ do
         LLVM_INST_DIR=$CFG_LLVM_ROOT
         do_reconfigure=0
         # Check that LLVm FileCheck is available. Needed for the tests
-        need_cmd $LLVM_INST_DIR/bin/FileCheck
+        if [ -z "$CFG_DISABLE_CODEGEN_TESTS" ]; then
+            need_cmd $LLVM_INST_DIR/bin/FileCheck
+        fi
     fi
 
     if [ ${do_reconfigure} -ne 0 ]

branches/beta/man/rustc.1

@@ -268,15 +268,15 @@ the maximum number of threads used for this purpose.
 
 .TP
 \fBRUST_TEST_NOCAPTURE\fR
-A synonym for the --nocapture flag.
+If set to a value other than "0", a synonym for the --nocapture flag.
 
 .TP
 \fBRUST_MIN_STACK\fR
 Sets the minimum stack size for new threads.
 
 .TP
 \fBRUST_BACKTRACE\fR
-If set, produces a backtrace in the output of a program which panics.
+If set to a value different than "0", produces a backtrace in the output of a program which panics.
 
 .SH "EXAMPLES"
 To build an executable from a source file with a main function:

branches/beta/mk/cfg/i586-unknown-linux-gnu.mk

@@ -7,9 +7,9 @@ CFG_LIB_NAME_i586-unknown-linux-gnu=lib$(1).so
 CFG_STATIC_LIB_NAME_i586-unknown-linux-gnu=lib$(1).a
 CFG_LIB_GLOB_i586-unknown-linux-gnu=lib$(1)-*.so
 CFG_LIB_DSYM_GLOB_i586-unknown-linux-gnu=lib$(1)-*.dylib.dSYM
-CFG_JEMALLOC_CFLAGS_i586-unknown-linux-gnu := -m32 $(CFLAGS)
-CFG_GCCISH_CFLAGS_i586-unknown-linux-gnu := -Wall -Werror -g -fPIC -m32 $(CFLAGS)
-CFG_GCCISH_CXXFLAGS_i586-unknown-linux-gnu := -fno-rtti $(CXXFLAGS)
+CFG_JEMALLOC_CFLAGS_i586-unknown-linux-gnu := -m32 $(CFLAGS) -march=pentium
+CFG_GCCISH_CFLAGS_i586-unknown-linux-gnu := -Wall -Werror -g -fPIC -m32 $(CFLAGS) -march=pentium
+CFG_GCCISH_CXXFLAGS_i586-unknown-linux-gnu := -fno-rtti $(CXXFLAGS) -march=pentium
 CFG_GCCISH_LINK_FLAGS_i586-unknown-linux-gnu := -shared -fPIC -ldl -pthread  -lrt -g -m32
 CFG_GCCISH_DEF_FLAG_i586-unknown-linux-gnu := -Wl,--export-dynamic,--dynamic-list=
 CFG_LLC_FLAGS_i586-unknown-linux-gnu :=

branches/beta/mk/crates.mk

@@ -53,11 +53,12 @@ TARGET_CRATES := libc std term \
                  getopts collections test rand \
                  core alloc \
                  rustc_unicode rustc_bitflags \
-		 alloc_system alloc_jemalloc rustc_const_eval
+		 alloc_system alloc_jemalloc
 RUSTC_CRATES := rustc rustc_typeck rustc_mir rustc_borrowck rustc_resolve rustc_driver \
                 rustc_trans rustc_back rustc_llvm rustc_privacy rustc_lint \
                 rustc_data_structures rustc_front rustc_platform_intrinsics \
-                rustc_plugin rustc_metadata rustc_passes
+                rustc_plugin rustc_metadata rustc_passes rustc_save_analysis \
+                rustc_const_eval rustc_const_math
 HOST_CRATES := syntax syntax_ext $(RUSTC_CRATES) rustdoc fmt_macros \
 		flate arena graphviz rbml log serialize
 TOOLS := compiletest rustdoc rustc rustbook error_index_generator
@@ -91,38 +92,42 @@ DEPS_test := std getopts term native:rust_test_helpers
 DEPS_syntax := std term serialize log arena libc rustc_bitflags rustc_unicode
 DEPS_syntax_ext := syntax fmt_macros
 
-DEPS_rustc_const_eval := std syntax
+DEPS_rustc_const_math := std syntax log serialize
+DEPS_rustc_const_eval := rustc_const_math rustc syntax log serialize rustc_front \
+					     rustc_back graphviz
 
 DEPS_rustc := syntax fmt_macros flate arena serialize getopts rbml rustc_front\
-              log graphviz rustc_llvm rustc_back rustc_data_structures\
-		  	  rustc_const_eval
-DEPS_rustc_back := std syntax rustc_llvm rustc_front flate log libc
-DEPS_rustc_borrowck := rustc rustc_front log graphviz syntax
+              log graphviz rustc_back rustc_data_structures\
+		  	  rustc_const_math
+DEPS_rustc_back := std syntax rustc_front flate log libc
+DEPS_rustc_borrowck := rustc rustc_front rustc_mir log graphviz syntax
 DEPS_rustc_data_structures := std log serialize
 DEPS_rustc_driver := arena flate getopts graphviz libc rustc rustc_back rustc_borrowck \
                      rustc_typeck rustc_mir rustc_resolve log syntax serialize rustc_llvm \
 	             rustc_trans rustc_privacy rustc_lint rustc_front rustc_plugin \
-                     rustc_metadata syntax_ext rustc_passes
+                     rustc_metadata syntax_ext rustc_passes rustc_save_analysis rustc_const_eval
 DEPS_rustc_front := std syntax log serialize
-DEPS_rustc_lint := rustc log syntax
+DEPS_rustc_lint := rustc log syntax rustc_const_eval
 DEPS_rustc_llvm := native:rustllvm libc std rustc_bitflags
-DEPS_rustc_metadata := rustc rustc_front syntax rbml rustc_const_eval
-DEPS_rustc_passes := syntax rustc core rustc_front
-DEPS_rustc_mir := rustc rustc_front syntax rustc_const_eval
+DEPS_rustc_metadata := rustc rustc_front syntax rbml rustc_const_math
+DEPS_rustc_passes := syntax rustc core rustc_front rustc_const_eval
+DEPS_rustc_mir := rustc rustc_front syntax rustc_const_math rustc_const_eval
 DEPS_rustc_resolve := arena rustc rustc_front log syntax
-DEPS_rustc_platform_intrinsics := rustc rustc_llvm
+DEPS_rustc_platform_intrinsics := std
 DEPS_rustc_plugin := rustc rustc_metadata syntax rustc_mir
 DEPS_rustc_privacy := rustc rustc_front log syntax
 DEPS_rustc_trans := arena flate getopts graphviz libc rustc rustc_back rustc_mir \
                     log syntax serialize rustc_llvm rustc_front rustc_platform_intrinsics \
-					rustc_const_eval
-DEPS_rustc_typeck := rustc syntax rustc_front rustc_platform_intrinsics rustc_const_eval
+                    rustc_const_math rustc_const_eval
+DEPS_rustc_save_analysis := rustc log syntax rustc_front
+DEPS_rustc_typeck := rustc syntax rustc_front rustc_platform_intrinsics rustc_const_math \
+                     rustc_const_eval
 
 DEPS_rustdoc := rustc rustc_driver native:hoedown serialize getopts \
-                test rustc_lint rustc_front
+                test rustc_lint rustc_front rustc_const_eval
 
 
-TOOL_DEPS_compiletest := test getopts
+TOOL_DEPS_compiletest := test getopts log
 TOOL_DEPS_rustdoc := rustdoc
 TOOL_DEPS_rustc := rustc_driver
 TOOL_DEPS_rustbook := std rustdoc

branches/beta/mk/main.mk

@@ -493,7 +493,7 @@ endif
 LD_LIBRARY_PATH_ENV_HOSTDIR$(1)_T_$(2)_H_$(3) := \
     $$(CURDIR)/$$(HLIB$(1)_H_$(3)):$$(CFG_LLVM_INST_DIR_$(3))/lib
 LD_LIBRARY_PATH_ENV_TARGETDIR$(1)_T_$(2)_H_$(3) := \
-    $$(CURDIR)/$$(TLIB1_T_$(2)_H_$(CFG_BUILD))
+    $$(CURDIR)/$$(TLIB$(1)_T_$(2)_H_$(3))
 
 HOST_RPATH_VAR$(1)_T_$(2)_H_$(3) := \
   $$(LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3))=$$(LD_LIBRARY_PATH_ENV_HOSTDIR$(1)_T_$(2)_H_$(3)):$$$$$$(LD_LIBRARY_PATH_ENV_NAME$(1)_T_$(2)_H_$(3))
@@ -506,18 +506,14 @@ RPATH_VAR$(1)_T_$(2)_H_$(3) := $$(HOST_RPATH_VAR$(1)_T_$(2)_H_$(3))
 # if you're building a cross config, the host->* parts are
 # effectively stage1, since it uses the just-built stage0.
 #
-# This logic is similar to how the LD_LIBRARY_PATH variable must
-# change be slightly different when doing cross compilations.
-# The build doesn't copy over all target libraries into
-# a new directory, so we need to point the library path at
-# the build directory where all the target libraries came
-# from (the stage0 build host). Otherwise the relative rpaths
-# inside of the rustc binary won't get resolved correctly.
+# Also be sure to use the right rpath because we're loading libraries from the
+# CFG_BUILD's stage1 directory for our target, so switch this one instance of
+# `RPATH_VAR` to get the bootstrap working.
 ifeq ($(1),0)
 ifneq ($(strip $(CFG_BUILD)),$(strip $(3)))
 CFGFLAG$(1)_T_$(2)_H_$(3) = stage1
 
-RPATH_VAR$(1)_T_$(2)_H_$(3) := $$(TARGET_RPATH_VAR$(1)_T_$(2)_H_$(3))
+RPATH_VAR$(1)_T_$(2)_H_$(3) := $$(TARGET_RPATH_VAR1_T_$(2)_H_$$(CFG_BUILD))
 endif
 endif