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10591 Commits

Author SHA1 Message Date
Andrew Kelley
da73410e7f CBE: avoid curly inits because they don't work in assignments 2022-12-04 15:57:40 -07:00
Andrew Kelley
db1819e8ed CBE: fix use-after-free of Type keys in free_locals map 2022-12-04 15:57:40 -07:00
Andrew Kelley
7bd63a602a CBE: fix assignment expr and switch free tracking 2022-12-04 15:57:40 -07:00
Andrew Kelley
8bfbfa589c CBE: fix clone of freed locals not being deep clone 2022-12-04 15:57:40 -07:00
Andrew Kelley
73a76b45c5 CBE: take advantage of switch_br and cond_br liveness 2022-12-04 15:57:40 -07:00
Andrew Kelley
8d8b2c834d CBE: exploit Liveness analysis to reuse locals 2022-12-04 15:57:40 -07:00
Andrew Kelley
3a9375cae9 wasm codegen: fix some missing Liveness reaps 
I did not do a full audit, but I did notice a few issues which are
resolved in this commit. Probably it would be worth adding debug
infrastructure to assert that the number of reaps equals the number of
calls to resolveInst() per air lowering function.
 2022-12-04 15:57:40 -07:00
Andrew Kelley
2a0efbee56 Revert "cbe: reduce amount of temporary locals" 
This reverts commit 15cc83e27a.
 2022-12-04 15:57:40 -07:00
Andrew Kelley
46f4a97d05 Revert "cbe: write more instructions inline" 
This reverts commit f8b779c114.
 2022-12-04 15:57:39 -07:00
r00ster91
f094c4bce5 Sema: detect duplicate enum tag values 2022-12-04 14:12:24 +02:00
Jacob Young
e3b8658e65 cbe: add forward declarations for optionals and error unions 
Arrays will have to wait for type rewrite.
 2022-12-03 21:58:18 -05:00
Jacob Young
6d1292552e cbe: implement function alignment 2022-12-03 08:40:08 -05:00
Jacob Young
ec3116f573 cbe: fix zero-bit struct field pointer 2022-12-03 08:40:08 -05:00
Jacob Young
7fb6eb3d14 cbe: implement multiple exports of a symbols 2022-12-03 08:21:03 -05:00
Jacob Young
81c271cc62 cbe: don't emit extern decls that are already exported 2022-12-03 08:21:03 -05:00
Jacob Young
2cfc08ba0d cbe: fix named constraints without modifiers 2022-12-03 08:21:03 -05:00
Andrew Kelley
f68bfe2eb7 CBE: no braces when lowering block instruction 
This change alone solves the bracket-depth issue when compiling zig1.c
with Clang.
 2022-12-03 05:22:50 -05:00
Andrew Kelley
610d604f5b Merge pull request #13748 from jacobly0/c-unaligned 
cbe: use memcpy for underaligned loads and stores
 2022-12-03 02:18:07 -05:00
Andrew Kelley
53dcf78a25 print_air: print Liveness info for switch_br 2022-12-02 23:46:42 -07:00
Andrew Kelley
fdbb0fb7b9 Merge pull request #13744 from Vexu/stage2-fixes 
Improve error messages, fix dependency loops
 2022-12-03 00:42:11 -05:00
Jacob Young
e1216077f0 cbe: add support for constraint modifiers specified after a colon 
This translates `%[name:mod]` to `%mod[name]` for C.
 2022-12-02 22:21:24 -05:00
Jacob Young
fdedd62365 cbe: use memcpy for underaligned loads and stores 2022-12-02 22:21:24 -05:00
Andrew Kelley
29e8e67a7e CBE: use bool, true, false, instead of zig_ prefixes 
In general the C backend should lower to human-maintainable C code
whenever possible. Directly using C types that one would use when
writing C code is one part of the strategy.

The concern with including stdint.h is C89 compatibility. Well, we can
just check the C std lib version before deciding to include that header.
 2022-12-02 16:12:49 -07:00
Veikka Tuominen
b500e0eb17 Sema: add "parameter type declared here" note to type coercion 2022-12-03 00:48:04 +02:00
Veikka Tuominen
f20e449fd6 Sema: improve error for mismatched type in implicit return 
Closes #2653
 2022-12-03 00:48:03 +02:00
Andrew Kelley
d171279d79 CBE: use a 0 literal instead of error.@"(no error)" 
This saves bytes and is easier to read too.
 2022-12-02 15:42:20 -07:00
Veikka Tuominen
e2509ddbe6 AstGen: add error for invalid string comparisons 
These operations are allowed because the string literals are just
pointers but they produce unexpected results. These errors prevent
beginners from shooting themselves in the foot while still allowing
advanced users to circumvent them if they desire to do so.

Closes #8290
 2022-12-03 00:09:23 +02:00
Veikka Tuominen
0e38cc16d5 Sema: fix comparisons between lazy and runtime values 
Closes #12498
 2022-12-03 00:09:23 +02:00
Veikka Tuominen
7f9e841f74 Sema: do not forcibly canonicalize unresolved pointer element type 
Closes #13308
 2022-12-03 00:09:23 +02:00
Veikka Tuominen
59dad43de2 Sema: add error for failed assumption about struct having runtime bits 2022-12-02 18:46:59 +02:00
Jakub Konka
16dc86a49e Merge pull request #13730 from ziglang/gen-dwarf-simple 
dwarf: dedup generation of dwarf info for func args and vars in Dwarf module
 2022-12-02 17:13:52 +01:00
Veikka Tuominen
86e6acb37b AstGen: improve error message for missing parameter name 
Closes #13393
 2022-12-02 15:39:40 +02:00
Jakub Konka
bfd36cbf97 dwarf: pass linker Tag and owner Decl.Index instead of *Atom 2022-12-02 13:17:52 +01:00
Jakub Konka
05962a4aa2 x86: do not deref ptr type, let Dwart do it 2022-12-02 12:23:01 +01:00
Jakub Konka
3ec0520bac dwarf: use common DI union object for arg and var gen 2022-12-02 12:22:17 +01:00
Andrew Kelley
665eba93c1 CBE: eliminate zig_void 
C void is perfectly fine.
 2022-12-02 00:46:27 -05:00
Andrew Kelley
e6e459e9e3 zig cc: detect -z stack-size arguments 2022-12-01 20:58:09 -07:00
Andrew Kelley
4071b22454 Merge pull request #13715 from Vexu/cbe 
cbe bug fixes and improvements
 2022-12-01 17:38:11 -05:00
Jakub Konka
8fea84f77e dwarf: move Wasm specific dwarf gen out of codegen 2022-12-01 20:55:55 +01:00
Jakub Konka
17ab40f755 dwarf: refactor arm and riscv64 to the new scheme 2022-12-01 20:06:11 +01:00
Jakub Konka
4120332577 dwarf: fix typos after refactoring dbi gen 2022-12-01 17:23:28 +01:00
Jakub Konka
5bffc17c42 codegen: make LinkerLoad a common struct shared by backends 2022-12-01 16:32:09 +01:00
Jakub Konka
00016ab6a0 dwarf: extract common logic for generating func var dbg info 2022-12-01 15:28:22 +01:00
Jakub Konka
7d0af639d8 dwarf: update arm and riscv codegens to the new model 2022-12-01 14:32:09 +01:00
Jakub Konka
5ee99f862a dwarf: extract common logic for generating func arg dbg info 2022-12-01 14:06:24 +01:00
Veikka Tuominen
d0edaabf9d Value: fix elemValueAdvanced for optional payloads 
Closes #13707
 2022-12-01 11:49:06 +02:00
Andrew Kelley
94e751ad01 Merge pull request #13718 from Luukdegram/wasm-packed 
stage2: Wasm - Implement packed structs
 2022-11-30 19:29:26 -05:00
Luuk de Gram
090deae41d wasm: enable behavior tests for packed structs 2022-11-30 21:01:09 +01:00
Veikka Tuominen
fb4a5ccdee llvm: make debuggers actually usable 
`@llvm.dbg.value` is absolutely useless, adding a temporary alloca
to store the constant in will make it actually show up in debuggers.
The effect on performance should be minimal since there is only one
store and it the change is not applied to ReleaseSafe builds.

```zig
fn foo(a: u32, b: []const u8, c: bool, d: enum { yes, no }) void {
    _ = a; _ = b; _ = c; _ = d;
}
```
before:
```
Breakpoint 1, a.foo (a=<optimized out>, b=..., c=<optimized out>, d=<optimized out>) at a.zig:18
18          _ = d;
```
after:
```
Breakpoint 1, a.foo (a=1, b=..., c=false, d=yes) at a.zig:15
15          _ = a; _ = b; _ = c; _ = d;
(gdb) p b
$1 = {ptr = 0x20854f <a.main.anon_3888> "bar", len = 3}
```
 2022-11-30 19:33:03 +02:00
Veikka Tuominen
e4fd9acc2a CLI: allow using --debug-compile-errors with zig build 2022-11-30 19:14:04 +02:00