[gcc/devel/rust/master] Merge #1465 #1467

[Thomas Schwinge <tschwinge@gcc.gnu.org>]

https://gcc.gnu.org/g:021e4953390da748515debfc8973149457d3118a

commit 021e4953390da748515debfc8973149457d3118a
Merge: fadc7047514 8899dc9bf70 d4ddd73b0b8
Author: bors[bot] <26634292+bors[bot]@users.noreply.github.com>
Date:   Fri Aug 12 12:11:26 2022 +0000

    Merge #1465 #1467
    
    1465: intrinsics: Add wrapping_{add, sub, mul} r=CohenArthur a=CohenArthur
    
    Since wrapping arithmetics are guaranteed in Rust, we turn on the -fwrapv and simply desugar wrapping_{add, sub, mul} to their non-checked inner operations. This is the only difference between a wrapping add and a regular addition: The regular addition will gain some checks for overflows, which are simply not used for the wrapping version.
    
    Fixes #1449
    
    `@bjorn3` if you want to have a look :)
    
    1467: Desugar HIR::IdentifierExpr into HIR::PathInExpression r=philberty a=philberty
    
    This completly removes the HIR::IdentifierExpr and unifies how we handle
    generics in general. There was a hack from last year that did not infer
    generic arguments on IdentifierExpr's which leads to a type inferencing
    behvaiour mismatch which was becoming difficult to debug. This simplifies
    everything.
    
    The changes to the test case reflect making our code more compliant to
    real rustc apart from compile/traits3.rs which will be fixed as part of the
    refactoring effort going on in the type system.
    
    Fixes #1456
    
    Co-authored-by: Arthur Cohen <arthur.cohen@embecosm.com>
    Co-authored-by: Philip Herron <philip.herron@embecosm.com>

Diff:

 gcc/rust/backend/rust-compile-block.h              |   3 -
 gcc/rust/backend/rust-compile-expr.cc              | 120 ---------------------
 gcc/rust/backend/rust-compile-expr.h               |   2 -
 gcc/rust/backend/rust-compile-intrinsic.cc         |  69 +++++++++++-
 gcc/rust/backend/rust-compile-resolve-path.cc      |  15 +++
 gcc/rust/backend/rust-compile-struct-field-expr.h  |   1 -
 gcc/rust/backend/rust-compile.cc                   |  15 ++-
 .../checks/errors/privacy/rust-privacy-reporter.cc |   4 -
 .../checks/errors/privacy/rust-privacy-reporter.h  |   1 -
 gcc/rust/checks/errors/rust-const-checker.cc       |   4 -
 gcc/rust/checks/errors/rust-const-checker.h        |   1 -
 gcc/rust/checks/errors/rust-unsafe-checker.cc      |  15 ---
 gcc/rust/checks/errors/rust-unsafe-checker.h       |   1 -
 gcc/rust/checks/lints/rust-lint-marklive.cc        |  14 ---
 gcc/rust/checks/lints/rust-lint-marklive.h         |   1 -
 gcc/rust/hir/rust-ast-lower-expr.h                 |  15 ++-
 gcc/rust/hir/rust-hir-dump.cc                      |   3 -
 gcc/rust/hir/rust-hir-dump.h                       |   1 -
 gcc/rust/hir/tree/rust-hir-full-decls.h            |   1 -
 gcc/rust/hir/tree/rust-hir-full-test.cc            |  12 ---
 gcc/rust/hir/tree/rust-hir-visitor.h               |   3 -
 gcc/rust/hir/tree/rust-hir.h                       |  58 ----------
 gcc/rust/rust-lang.cc                              |   8 +-
 gcc/rust/typecheck/rust-hir-type-check-expr.cc     |  56 ----------
 gcc/rust/typecheck/rust-hir-type-check-expr.h      |   1 -
 gcc/rust/typecheck/rust-hir-type-check-struct.cc   |  14 ++-
 gcc/rust/typecheck/rust-tycheck-dump.h             |   5 -
 gcc/testsuite/rust/compile/torture/issue-1075.rs   |   3 +-
 gcc/testsuite/rust/compile/traits3.rs              |   4 +-
 gcc/testsuite/rust/execute/torture/issue-1120.rs   |   3 +-
 gcc/testsuite/rust/execute/torture/issue-1133.rs   |   3 +-
 gcc/testsuite/rust/execute/torture/issue-1232.rs   |   3 +-
 gcc/testsuite/rust/execute/torture/issue-1436.rs   |   3 +-
 gcc/testsuite/rust/execute/torture/slice-magic.rs  |   3 +-
 gcc/testsuite/rust/execute/torture/slice-magic2.rs |   3 +-
 gcc/testsuite/rust/execute/torture/wrapping_op1.rs |  14 +++
 gcc/testsuite/rust/execute/torture/wrapping_op2.rs |  20 ++++
 37 files changed, 164 insertions(+), 338 deletions(-)