ziglang/zig
ziglang/zig
140
2.5k
Fork 197
Code Issues 106 Pull requests 64 Activity Actions 9

compiler_rt: Implemented missing handling of denormal numbers when dividing f128 #30198

Open
chrboesch wants to merge 1 commit from chrboesch/zig:missig_denormal_in_div_f128 into master
pull from: chrboesch/zig:missig_denormal_in_div_f128
merge into: ziglang:master
Conversation 0 Commits 1 Files changed 2 +27 -3
chrboesch commented 2025-12-15 19:00:30 +01:00
First-time contributor
Copy link

Replaces the "flush denormals to zero" placeholder in divtf3.zig with IEEE 754 denormal support including rounding.

fixes #30179

Replaces the "flush denormals to zero" placeholder in divtf3.zig with IEEE 754 denormal support including rounding. fixes #30179
compiler_rt: Implemented missing handling of denormal numbers when dividing f128
All checks were successful
ci / riscv64-linux-debug (pull_request) Has been skipped
Details
ci / riscv64-linux-release (pull_request) Has been skipped
Details
ci / x86_64-freebsd-release (pull_request) Successful in 34m33s
Details
ci / aarch64-macos-release (pull_request) Successful in 44m53s
Details
ci / x86_64-freebsd-debug (pull_request) Successful in 45m45s
Details
ci / x86_64-windows-debug (pull_request) Successful in 47m41s
Details
ci / x86_64-linux-debug (pull_request) Successful in 49m22s
Details
ci / aarch64-linux-release (pull_request) Successful in 1h21m24s
Details
ci / aarch64-macos-debug (pull_request) Successful in 1h28m55s
Details
ci / x86_64-linux-release (pull_request) Successful in 1h40m15s
Details
ci / s390x-linux-release (pull_request) Successful in 1h44m30s
Details
ci / aarch64-linux-debug (pull_request) Successful in 1h54m16s
Details
ci / loongarch64-linux-release (pull_request) Successful in 1h59m5s
Details
ci / x86_64-windows-release (pull_request) Successful in 32m10s
Details
ci / s390x-linux-debug (pull_request) Successful in 2h29m10s
Details
ci / loongarch64-linux-debug (pull_request) Successful in 3h9m25s
Details
ci / x86_64-linux-debug-llvm (pull_request) Successful in 3h1m21s
Details
5276dc8623
All checks were successful
ci / riscv64-linux-debug (pull_request) Has been skipped
Details
ci / riscv64-linux-release (pull_request) Has been skipped
Details
ci / x86_64-freebsd-release (pull_request) Successful in 34m33s
Required
Details
ci / aarch64-macos-release (pull_request) Successful in 44m53s
Required
Details
ci / x86_64-freebsd-debug (pull_request) Successful in 45m45s
Required
Details
ci / x86_64-windows-debug (pull_request) Successful in 47m41s
Required
Details
ci / x86_64-linux-debug (pull_request) Successful in 49m22s
Required
Details
ci / aarch64-linux-release (pull_request) Successful in 1h21m24s
Required
Details
ci / aarch64-macos-debug (pull_request) Successful in 1h28m55s
Required
Details
ci / x86_64-linux-release (pull_request) Successful in 1h40m15s
Required
Details
ci / s390x-linux-release (pull_request) Successful in 1h44m30s
Required
Details
ci / aarch64-linux-debug (pull_request) Successful in 1h54m16s
Required
Details
ci / loongarch64-linux-release (pull_request) Successful in 1h59m5s
Required
Details
ci / x86_64-windows-release (pull_request) Successful in 32m10s
Required
Details
ci / s390x-linux-debug (pull_request) Successful in 2h29m10s
Required
Details
ci / loongarch64-linux-debug (pull_request) Successful in 3h9m25s
Required
Details
ci / x86_64-linux-debug-llvm (pull_request) Successful in 3h1m21s
Required
Details
This pull request can be merged automatically.
This branch is out-of-date with the base branch
You are not authorized to merge this pull request.
View command line instructions

Checkout

From your project repository, check out a new branch and test the changes.
git fetch -u missig_denormal_in_div_f128:chrboesch-missig_denormal_in_div_f128
git switch chrboesch-missig_denormal_in_div_f128
Sign in to join this conversation.
Reviewers
No reviewers
Labels
Clear labels   
abi/f32

   
abi/ilp32

   
abi/n32

   
abi/sf

   
abi/x32

   
accepted

This proposal is planned.

  
arch/1750a

   
arch/21k

   
arch/6502

   
arch/a29k

   
arch/aarch64

   
arch/alpha

   
arch/amdgcn

   
arch/arc

   
arch/arc32

   
arch/arc64

   
arch/arm

   
arch/avr

   
arch/avr32

   
arch/bfin

   
arch/bpf

   
arch/clipper

   
arch/colossus

   
arch/cr16

   
arch/cris

   
arch/csky

   
arch/dlx

   
arch/dsp16xx

   
arch/elxsi

   
arch/epiphany

   
arch/fr30

   
arch/frv

   
arch/h8300

   
arch/h8500

   
arch/hexagon

   
arch/hppa

   
arch/hppa64

   
arch/i370

   
arch/i860

   
arch/i960

   
arch/ia64

   
arch/ip2k

   
arch/kalimba

   
arch/kvx

   
arch/lanai

   
arch/lm32

   
arch/loongarch32

   
arch/loongarch64

   
arch/m32r

   
arch/m68k

   
arch/m88k

   
arch/maxq

   
arch/mcore

   
arch/metag

   
arch/microblaze

   
arch/mips

   
arch/mips64

   
arch/mmix

   
arch/mn10200

   
arch/mn10300

   
arch/moxie

   
arch/mrisc32

   
arch/msp430

   
arch/nds32

   
arch/nios2

   
arch/ns32k

   
arch/nvptx

   
arch/or1k

   
arch/pdp10

   
arch/pdp11

   
arch/pj

   
arch/powerpc

   
arch/powerpc64

   
arch/propeller

   
arch/riscv32

   
arch/riscv64

   
arch/rl78

   
arch/rx

   
arch/s390

   
arch/s390x

   
arch/sh

   
arch/sh64

   
arch/sparc

   
arch/sparc64

   
arch/spirv

   
arch/spu

   
arch/st200

   
arch/starcore

   
arch/tilegx

   
arch/tilepro

   
arch/tricore

   
arch/ts

   
arch/v850

   
arch/vax

   
arch/vc4

   
arch/ve

   
arch/wasm

   
arch/we32k

   
arch/x86

   
arch/x86_16

   
arch/x86_64

   
arch/xcore

   
arch/xgate

   
arch/xstormy16

   
arch/xtensa

   
autodoc

The web application for interactive documentation and generation of its assets.

  
backend/c

The C backend outputs C source code.

  
backend/llvm

The LLVM backend outputs an LLVM bitcode module.

  
backend/self-hosted

The self-hosted backends produce machine code directly.

  
binutils

Zig's included binary utilities: zig ar, zig dlltool, zig lib, zig ranlib, zig objcopy, and zig rc.

  
breaking

Implementing this issue could cause existing code to no longer compile or have different behavior.

  
build system

The Zig build system - zig build, std.Build, the build runner, and package management.

  
debug info

An issue related to debug information (e.g. DWARF) produced by the Zig compiler.

  
docs

An issue with documentation, e.g. the language reference or standard library doc comments.

  
error message

This issue points out an error message that is unhelpful and should be improved.

  
frontend

Tokenization, parsing, AstGen, ZonGen, Sema, Legalize, and Liveness.

  
fuzzing

An issue related to Zig's integrated fuzz testing.

  
incremental

Reuse of internal compiler state for faster compilation.

  
lib/c

This issue relates to Zig's libc implementation and/or vendored libcs.

  
lib/compiler-rt

This issue relates to Zig's compiler-rt library.

  
lib/cxx

This issue relates to Zig's vendored libc++ and/or libc++abi.

  
lib/std

This issue relates to Zig's standard library.

  
lib/tsan

This issue relates to Zig's vendored libtsan.

  
lib/ubsan-rt

This issue relates to Zig's ubsan-rt library.

  
lib/unwind

This issue relates to Zig's vendored libunwind.

  
linking

Zig's integrated object file and incremental linker.

  
miscompilation

The compiler reports success but produces semantically incorrect code.

  
os/aix

   
os/android

   
os/bridgeos

   
os/contiki

   
os/dragonfly

   
os/driverkit

   
os/emscripten

   
os/freebsd

   
os/fuchsia

   
os/haiku

   
os/hermit

   
os/hurd

   
os/illumos

   
os/ios

   
os/kfreebsd

   
os/linux

   
os/maccatalyst

   
os/macos

   
os/managarm

   
os/netbsd

   
os/ohos

   
os/openbsd

   
os/plan9

   
os/redox

   
os/rtems

   
os/serenity

   
os/solaris

   
os/tvos

   
os/uefi

   
os/visionos

   
os/wali

   
os/wasi

   
os/watchos

   
os/windows

   
os/zos

   
proposal

This issue suggests modifications. If it also has the "accepted" label then it is planned.

  
release notes

This issue or pull request should be mentioned in the release notes.

  
testing

This issue is related to testing the compiler, standard library, or other parts of Zig.

  
tier system

This issue tracks the support tier for a target.

  
zig cc

Zig as a drop-in C-family compiler.

  
zig fmt

The Zig source code formatter.

  
bounty

https://ziglang.org/news/announcing-donor-bounties

  
bug

Observed behavior contradicts documented or intended behavior.

  
contributor-friendly

This issue is limited in scope and/or knowledge of project internals.

  
downstream

An issue with a third-party project that uses this project.

  
enhancement

Solving this issue will likely involve adding new logic or components to the codebase.

  
infra

An issue related to project infrastructure, e.g. continuous integration.

  
optimization

A task to improve performance and/or resource usage.

  
question

No questions on the issue tracker; use a community space instead.

  
regression

A bug that did not occur in a previous version.

  
upstream

An issue with a third-party project that this project uses.

No labels
abi/f32
abi/ilp32
abi/n32
abi/sf
abi/x32
accepted
arch/1750a
arch/21k
arch/6502
arch/a29k
arch/aarch64
arch/alpha
arch/amdgcn
arch/arc
arch/arc32
arch/arc64
arch/arm
arch/avr
arch/avr32
arch/bfin
arch/bpf
arch/clipper
arch/colossus
arch/cr16
arch/cris
arch/csky
arch/dlx
arch/dsp16xx
arch/elxsi
arch/epiphany
arch/fr30
arch/frv
arch/h8300
arch/h8500
arch/hexagon
arch/hppa
arch/hppa64
arch/i370
arch/i860
arch/i960
arch/ia64
arch/ip2k
arch/kalimba
arch/kvx
arch/lanai
arch/lm32
arch/loongarch32
arch/loongarch64
arch/m32r
arch/m68k
arch/m88k
arch/maxq
arch/mcore
arch/metag
arch/microblaze
arch/mips
arch/mips64
arch/mmix
arch/mn10200
arch/mn10300
arch/moxie
arch/mrisc32
arch/msp430
arch/nds32
arch/nios2
arch/ns32k
arch/nvptx
arch/or1k
arch/pdp10
arch/pdp11
arch/pj
arch/powerpc
arch/powerpc64
arch/propeller
arch/riscv32
arch/riscv64
arch/rl78
arch/rx
arch/s390
arch/s390x
arch/sh
arch/sh64
arch/sparc
arch/sparc64
arch/spirv
arch/spu
arch/st200
arch/starcore
arch/tilegx
arch/tilepro
arch/tricore
arch/ts
arch/v850
arch/vax
arch/vc4
arch/ve
arch/wasm
arch/we32k
arch/x86
arch/x86_16
arch/x86_64
arch/xcore
arch/xgate
arch/xstormy16
arch/xtensa
autodoc
backend/c
backend/llvm
backend/self-hosted
binutils
breaking
build system
debug info
docs
error message
frontend
fuzzing
incremental
lib/c
lib/compiler-rt
lib/cxx
lib/std
lib/tsan
lib/ubsan-rt
lib/unwind
linking
miscompilation
os/aix
os/android
os/bridgeos
os/contiki
os/dragonfly
os/driverkit
os/emscripten
os/freebsd
os/fuchsia
os/haiku
os/hermit
os/hurd
os/illumos
os/ios
os/kfreebsd
os/linux
os/maccatalyst
os/macos
os/managarm
os/netbsd
os/ohos
os/openbsd
os/plan9
os/redox
os/rtems
os/serenity
os/solaris
os/tvos
os/uefi
os/visionos
os/wali
os/wasi
os/watchos
os/windows
os/zos
proposal
release notes
testing
tier system
zig cc
zig fmt
bounty
bug
contributor-friendly
downstream
enhancement
infra
optimization
question
regression
upstream
Milestone
Clear milestone
No items
No milestone
Projects
Clear projects
No items
No project
Assignees
Clear assignees
No assignees
1 participant
Notifications
Due date
The due date is invalid or out of range. Please use the format "yyyy-mm-dd".

No due date set.

Dependencies

No dependencies set.

Reference
ziglang/zig!30198
No description provided.