bors f42b6fa7ca Auto merge of #103299 - nikic:usub-overflow, r=wesleywiser ...

Don't use usub.with.overflow intrinsic

The canonical form of a usub.with.overflow check in LLVM are separate sub + icmp instructions, rather than a usub.with.overflow intrinsic. Using usub.with.overflow will generally result in worse optimization potential.

The backend will attempt to form usub.with.overflow when it comes to actual instruction selection. This is not fully reliable, but I believe this is a better tradeoff than using the intrinsic in IR.

Fixes #103285.

2022-10-30 17:45:04 +00:00

..

back

Support raw-dylib functions being used inside inlined functions

2022-10-24 16:17:38 -07:00

coverageinfo

more dupe word typos

2022-10-14 12:57:56 +08:00

debuginfo

Change name of "dataful" variant to "untagged"

2022-09-07 20:12:45 +00:00

llvm

Use the existing set_visibility function.

2022-09-28 14:43:58 -07:00

abi.rs

Merge apply_attrs_callsite into call and invoke

2022-10-01 17:01:31 +00:00

allocator.rs

Rename debugging_opts to unstable_opts

2022-07-13 17:47:06 -05:00

asm.rs

Add links to relevant pages to find constraint information

2022-10-13 22:05:49 +02:00

attributes.rs

Add inline-llvm option for disabling/enabling LLVM inlining

2022-09-09 08:00:47 -07:00

base.rs

Remove several unused methods from MiscMethods

2022-10-01 16:45:07 +00:00

builder.rs

Don't use usub.with.overflow intrinsic

2022-10-20 12:47:17 +02:00

callee.rs

Get rid of native_library projection queries

2022-10-19 16:21:21 +02:00

common.rs

Introduce a fallible variant of LLVMConstIntGetZExtValue

2022-09-09 15:54:14 +02:00

consts.rs

Get rid of native_library projection queries

2022-10-19 16:21:21 +02:00

context.rs

Remove several unused methods from MiscMethods

2022-10-01 16:45:07 +00:00

declare.rs

Change declare_cfn to use the C visibility for all C ABI functions.

2022-09-28 14:50:58 -07:00

intrinsic.rs

Merge apply_attrs_callsite into call and invoke

2022-10-01 17:01:31 +00:00

lib.rs

Remove unused target_cpu and tune_cpu methods from ExtraBackendMethods

2022-10-01 16:45:33 +00:00

llvm_util.rs

Remove support for LLVM's legacy pass manager

2022-09-18 13:25:49 -07:00

mono_item.rs

Always import all tracing macros for the entire crate instead of piecemeal by module

2022-09-01 14:54:27 +00:00

type_.rs

Add fine-grained LLVM CFI support to the Rust compiler

2022-07-23 10:51:34 -07:00

type_of.rs

Always import all tracing macros for the entire crate instead of piecemeal by module

2022-09-01 14:54:27 +00:00

va_arg.rs

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value.rs

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