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Cody Tapscott 25d3713b07 stage2: Teach Liveness that safety checks do not modify memory 
This change adds to Liveness a simple pattern match for the
try-like `.condbr` blocks emitted by Sema's safety checks. This
allows us to determine that these do not modify memory, which
permits us to elide additional loads in the backend.

As @Vexu points out in the main issue, this is probably not a
complete solution on its own. We'll still want a way to reliably
narrow the load/copy when performing several consecutive accesses,
such as `foo.arr[x][y].z`

Resolves https://github.com/ziglang/zig/issues/12215
2022-12-12 18:48:10 -05:00
..
arch
stage2: sparc64: Implement airMinMax
2022-12-10 21:32:00 +07:00
autodoc
docgen: add f80 to builtin types
2022-09-14 20:08:34 -04:00
codegen
CBE: fix compiling for aarch64-windows
2022-12-10 09:15:40 -05:00
link
macho+zld: skip atomless synthetic globals in dead_strip
2022-12-09 21:12:38 +01:00
translate_c
translate-c: fix wrong logic adjustment
2022-12-06 12:15:05 -07:00
Air.zig
stage2: Keep error return traces alive when storing to const
2022-10-21 12:40:29 -07:00
AstGen.zig
AstGen: add check for missing builtin argument
2022-12-09 20:37:18 -07:00
Autodoc.zig
Eliminate BoundFn type from the language
2022-12-09 20:37:18 -07:00
BuiltinFn.zig
all: rename @maximum to @max and @minimum to @min
2022-10-18 14:15:16 +03:00
Cache.zig
cache: Fix LockViolation during C compilation paths (#13591)
2022-12-06 23:15:54 -05:00
clang_options_data.zig
Revert "adding static and dynamic ZigEquivalent
2022-10-18 14:16:07 -07:00
clang_options.zig
zig cc: honor all -m and -mno- CPU feature flags
2021-11-26 19:59:33 -07:00
clang.zig
remove most conditional compilation based on stage1
2022-12-06 20:38:54 -07:00
codegen.zig
remove most conditional compilation based on stage1
2022-12-06 20:38:54 -07:00
Compilation.zig
Compilation: revert asking for exclusive locks on cache hits
2022-12-10 14:34:30 -05:00
crash_report.zig
all: rename i386 to x86
2022-11-04 00:09:27 +03:30
DepTokenizer.zig
DepTokenizer.printUnderstandableChar: consider space printable
2022-12-09 21:57:17 +01:00
empty.zig
…
glibc.zig
Cache: introduce prefixes to manifests
2022-11-22 20:57:56 -07:00
InternPool.zig
run zig fmt on everything checked by CI
2022-11-18 19:22:42 +00:00
introspect.zig
WASI: remove absolute path emulation from std lib
2022-12-06 12:15:04 -07:00
libc_installation.zig
std.mem.Allocator: allow shrink to fail
2022-11-29 23:30:38 -07:00
libcxx.zig
Compilation: avoid Cache hash dependency on zig lib path
2022-11-22 20:57:56 -07:00
libtsan.zig
stage2: implement stack protectors
2022-08-19 03:41:13 -07:00
libunwind.zig
fix libc++ exceptions for musl targets
2022-09-13 11:38:14 -07:00
link.zig
Revert "coff: specify default base path for relative source paths in pdb"
2022-12-09 14:16:44 +01:00
Liveness.zig
stage2: Teach Liveness that safety checks do not modify memory
2022-12-12 18:48:10 -05:00
main.zig
Merge pull request #13799 from ziglang/close-stage1-issues
2022-12-07 03:06:10 -05:00
mingw.zig
fix aarch64-windows-gnu libc
2022-12-10 03:06:17 -05:00
Module.zig
Add a helpful note when using ** on number types. (#13871)
2022-12-11 14:41:42 -05:00
musl.zig
musl.zig: remove unused enum (#13545)
2022-11-14 16:35:25 +01:00
Package.zig
flatten lib/std/special and improve "pkg inside another" logic
2022-05-06 22:41:00 -07:00
print_air.zig
add behavior test for while(true) not needing else unreachable
2022-12-06 17:57:27 -07:00
print_env.zig
stage2: fix compile error merge conflict
2022-09-14 16:41:53 -07:00
print_targets.zig
glibc: fix race condition when building stubs
2022-10-29 12:15:47 -07:00
print_zir.zig
Sema: improve error for mismatched type in implicit return
2022-12-03 00:48:03 +02:00
RangeSet.zig
stage2: Rename Value.compare to compareAll, etc.
2022-11-10 12:24:02 -07:00
register_manager.zig
std.fmt: require specifier for unwrapping ?T and E!T
2022-07-26 11:25:49 -07:00
Sema.zig
Add a helpful note when using ** on number types. (#13871)
2022-12-11 14:41:42 -05:00
target.zig
remove most conditional compilation based on stage1
2022-12-06 20:38:54 -07:00
test.zig
test: remove reference to stage1
2022-12-06 12:15:04 -07:00
ThreadPool.zig
remove most conditional compilation based on stage1
2022-12-06 20:38:54 -07:00
tracy.zig
update TracyAllocator for new Allocator changes
2022-12-11 15:02:44 -05:00
translate_c.zig
api(std.ascii): remove deprecated decls
2022-12-09 21:57:17 +01:00
type.zig
Eliminate BoundFn type from the language
2022-12-09 20:37:18 -07:00
TypedValue.zig
TypedValue: fix handling of tuples represented as empty_struct_value
2022-12-08 22:21:49 +02:00
value.zig
Eliminate BoundFn type from the language
2022-12-09 20:37:18 -07:00
WaitGroup.zig
Compilation: multi-thread compiler-rt
2022-06-17 16:38:59 -07:00
wasi_libc.zig
Update wasi-libc to 8b7148f69ae241a2749b3defe4606da8143b72e0 (#13793)
2022-12-06 22:48:35 +00:00
windows_com.hpp
windows_com: add missing __CRT_UUID_DECL() for IEnumSetupInstances
2022-07-09 14:04:38 -07:00
windows_sdk.cpp
all: rename i386 to x86
2022-11-04 00:09:27 +03:30
windows_sdk.h
…
windows_sdk.zig
stage2: update for new usingnamespace semantics
2021-09-01 17:54:07 -07:00
zig_clang_cc1_main.cpp
update to LLVM 15
2022-07-28 11:53:25 -07:00
zig_clang_cc1as_main.cpp
update to LLVM 15
2022-07-28 11:53:25 -07:00
zig_clang_driver.cpp
update to LLVM 15
2022-07-28 11:53:25 -07:00
zig_clang.cpp
translate-c: packed struct implies align(1) on every field
2022-10-01 15:22:10 -07:00
zig_clang.h
translate-c: packed struct implies align(1) on every field
2022-10-01 15:22:10 -07:00
zig_llvm-ar.cpp
update to LLVM 15
2022-07-28 11:53:25 -07:00
zig_llvm.cpp
llvm: add attributes to the arguments of function pointer calls
2022-11-20 20:25:12 +02:00
zig_llvm.h
remove most conditional compilation based on stage1
2022-12-06 20:38:54 -07:00
Zir.zig
Sema: improve error for mismatched type in implicit return
2022-12-03 00:48:03 +02:00