[clang] [flang] [flang][Driver] Enables lto-partitions and fat-lto-object. (PR #158125)
Leandro Lupori via cfe-commits
cfe-commits at lists.llvm.org
Mon Sep 22 06:07:02 PDT 2025
luporl wrote:
`flang/test/Driver/lto-lld-flags.f90` fails on macOS too, when lld is not enabled:
```
FAIL: Flang :: Driver/lto-lld-flags.f90 (1 of 1)
******************** TEST 'Flang :: Driver/lto-lld-flags.f90' FAILED ********************
Exit Code: 1
Command Output (stdout):
--
# RUN: at line 3
/Users/leandro.lupori/home/git/flang/build/bin/flang -### -fuse-ld=lld -flto=full -flto-partitions=16 /Users/leandro.lupori/home/git/flang/llvm-project/flang/test/Driver/lto-lld-flags.f90 2>&1 | /Users/leandro.lupori/home/git/flang/build/bin/FileCheck /Users/leandro.lupori/home/git/flang/llvm-project/flang/test/Driver/lto-lld-flags.f90 --check-prefixes=LLD-PART,FC1-PART
# executed command: /Users/leandro.lupori/home/git/flang/build/bin/flang '-###' -fuse-ld=lld -flto=full -flto-partitions=16 /Users/leandro.lupori/home/git/flang/llvm-project/flang/test/Driver/lto-lld-flags.f90
# note: command had no output on stdout or stderr
# error: command failed with exit status: 1
# executed command: /Users/leandro.lupori/home/git/flang/build/bin/FileCheck /Users/leandro.lupori/home/git/flang/llvm-project/flang/test/Driver/lto-lld-flags.f90 --check-prefixes=LLD-PART,FC1-PART
# .---command stderr------------
# | /Users/leandro.lupori/home/git/flang/llvm-project/flang/test/Driver/lto-lld-flags.f90:8:13: error: LLD-PART: expected string not found in input
# | ! LLD-PART: ld.lld
# | ^
# | <stdin>:7:129: note: scanning from here
# | "/Users/leandro.lupori/home/git/flang/build/bin/flang" "-fc1" "-triple" "arm64-apple-macosx15.0.0" "-emit-llvm-bc" "-flto=full" "-mrelocation-model" "pic" "-pic-level" "2" "-target-cpu" "apple-m1" "-target-feature" "+v8.4a" "-target-feature" "+aes" "-target-feature" "+altnzcv" "-target-feature" "+ccdp" "-target-feature" "+ccpp" "-target-feature" "+complxnum" "-target-feature" "+crc" "-target-feature" "+dotprod" "-target-feature" "+flagm" "-target-feature" "+fp-armv8" "-target-feature" "+fp16fml" "-target-feature" "+fptoint" "-target-feature" "+fullfp16" "-target-feature" "+jsconv" "-target-feature" "+lse" "-target-feature" "+neon" "-target-feature" "+pauth" "-target-feature" "+perfmon" "-target-feature" "+predres" "-target-feature" "+ras" "-target-feature" "+rcpc" "-target-feature" "+rdm" "-target-feature" "+sb" "-target-feature" "+sha2" "-target-feature" "+sha3" "-target-feature" "+specrestrict" "-target-feature" "+ssbs" "-resource-dir" "/Users/leandro.lupori/home/git/flang/build/lib/clang/22" "-mframe-pointer=non-leaf" "-o" "/var/folders/dn/0khgdg49685fyvmj1tfyp13c0000gp/T/lit-tmp-oazpj6yh/lto-lld-flags-df2d88.o" "-x" "f95" "/Users/leandro.lupori/home/git/flang/llvm-project/flang/test/Driver/lto-lld-flags.f90"
# | ^
# | <stdin>:7:995: note: possible intended match here
# | "/Users/leandro.lupori/home/git/flang/build/bin/flang" "-fc1" "-triple" "arm64-apple-macosx15.0.0" "-emit-llvm-bc" "-flto=full" "-mrelocation-model" "pic" "-pic-level" "2" "-target-cpu" "apple-m1" "-target-feature" "+v8.4a" "-target-feature" "+aes" "-target-feature" "+altnzcv" "-target-feature" "+ccdp" "-target-feature" "+ccpp" "-target-feature" "+complxnum" "-target-feature" "+crc" "-target-feature" "+dotprod" "-target-feature" "+flagm" "-target-feature" "+fp-armv8" "-target-feature" "+fp16fml" "-target-feature" "+fptoint" "-target-feature" "+fullfp16" "-target-feature" "+jsconv" "-target-feature" "+lse" "-target-feature" "+neon" "-target-feature" "+pauth" "-target-feature" "+perfmon" "-target-feature" "+predres" "-target-feature" "+ras" "-target-feature" "+rcpc" "-target-feature" "+rdm" "-target-feature" "+sb" "-target-feature" "+sha2" "-target-feature" "+sha3" "-target-feature" "+specrestrict" "-target-feature" "+ssbs" "-resource-dir" "/Users/leandro.lupori/home/git/flang/build/lib/clang/22" "-mframe-pointer=non-leaf" "-o" "/var/folders/dn/0khgdg49685fyvmj1tfyp13c0000gp/T/lit-tmp-oazpj6yh/lto-lld-flags-df2d88.o" "-x" "f95" "/Users/leandro.lupori/home/git/flang/llvm-project/flang/test/Driver/lto-lld-flags.f90"
# | ^
# |
# | Input file: <stdin>
# | Check file: /Users/leandro.lupori/home/git/flang/llvm-project/flang/test/Driver/lto-lld-flags.f90
# |
# | -dump-input=help explains the following input dump.
# |
# | Input was:
# | <<<<<<
# | 1: flang version 22.0.0git (git at github.com:luporl/llvm-project.git 2ab5186a9373df5ff64c00b5a33aeb78a2ffd564)
# | 2: Target: arm64-apple-darwin24.6.0
# | 3: Thread model: posix
# | 4: InstalledDir: /Users/leandro.lupori/home/git/flang/build/bin
# | 5: Build config: +assertions
# | 6: flang-22: error: invalid linker name in argument '-fuse-ld=lld'
# | 7: "/Users/leandro.lupori/home/git/flang/build/bin/flang" "-fc1" "-triple" "arm64-apple-macosx15.0.0" "-emit-llvm-bc" "-flto=full" "-mrelocation-model" "pic" "-pic-level" "2" "-target-cpu" "apple-m1" "-target-feature" "+v8.4a" "-target-feature" "+aes" "-target-feature" "+altnzcv" "-target-feature" "+ccdp" "-target-feature" "+ccpp" "-target-feature" "+complxnum" "-target-feature" "+crc" "-target-feature" "+dotprod" "-target-feature" "+flagm" "-target-feature" "+fp-armv8" "-target-feature" "+fp16fml" "-target-feature" "+fptoint" "-target-feature" "+fullfp16" "-target-feature" "+jsconv" "-target-feature" "+lse" "-target-feature" "+neon" "-target-feature" "+pauth" "-target-feature" "+perfmon" "-target-feature" "+predres" "-target-feature" "+ras" "-target-feature" "+rcpc" "-target-feature" "+rdm" "-target-feature" "+sb" "-target-feature" "+sha2" "-target-feature" "+sha3" "-target-feature" "+specrestrict" "-target-feature" "+ssbs" "-resource-dir" "/Users/leandro.lupori/home/git/flang/build/lib/clang/22" "-mframe-pointer=non-leaf" "-o" "/var/folders/dn/0khgdg49685fyvmj1tfyp13c0000gp/T/lit-tmp-oazpj6yh/lto-lld-flags-df2d88.o" "-x" "f95" "/Users/leandro.lupori/home/git/flang/llvm-project/flang/test/Driver/lto-lld-flags.f90"
# | check:8'0 X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
# | check:8'1 ? possible intended match
# | 8: "/usr/bin/ld" "-demangle" "-object_path_lto" "/var/folders/dn/0khgdg49685fyvmj1tfyp13c0000gp/T/lit-tmp-oazpj6yh/cc-b14622.o" "-lto_library" "/Users/leandro.lupori/home/git/flang/build/lib/libLTO.dylib" "-no_deduplicate" "-dynamic" "-arch" "arm64" "-platform_version" "macos" "15.0.0" "15.0.0" "-syslibroot" "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk" "-mllvm" "-enable-linkonceodr-outlining" "-o" "a.out" "/var/folders/dn/0khgdg49685fyvmj1tfyp13c0000gp/T/lit-tmp-oazpj6yh/lto-lld-flags-df2d88.o" "-L/Users/leandro.lupori/home/git/flang/build/lib/clang/22/lib/darwin" "-L/Users/leandro.lupori/home/git/flang/build/lib" "-lflang_rt.runtime" "-lSystem" "/Users/leandro.lupori/home/git/flang/build/lib/clang/22/lib/darwin/libclang_rt.osx.a"
# | check:8'0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1
--
```
https://github.com/llvm/llvm-project/pull/158125
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