[flang-commits] [flang] Support for -fsplit-lto-unit option in flang driver (PR #204904)

[via flang-commits]

https://github.com/shivaramaarao created https://github.com/llvm/llvm-project/pull/204904

Fix for buildbot failures in #202858

This commit fixes a regression introduced in commit 12aefe26cedd9a8f94546cc1f2be285cfddcc861 (Support for -fsplit-lto-unit option in flang driver). When the compiler is built only for aarch64 one of the testcase failed.

Added explicit check  %if x86-registered-target for this testcase to resolve the issue.

>From bf18e7b54209cd014c7cea1ac0531fb088e98229 Mon Sep 17 00:00:00 2001
From: Shivarama Rao <shivarama.rao at amd.com>
Date: Sat, 20 Jun 2026 08:57:27 +0530
Subject: [PATCH] This commit fixes a regression introduced in commit
 12aefe26cedd9a8f94546cc1f2be285cfddcc861(Support for -fsplit-lto-unit option
 in flang driver) in non x86 target builds.

Added explict check  %if x86-registered-target for the testcases that require x86 targets
---
 flang/test/Integration/split-lto-unit-2.f90 | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/flang/test/Integration/split-lto-unit-2.f90 b/flang/test/Integration/split-lto-unit-2.f90
index 3ccfa973d4cf9..843c6b5e717f5 100644
--- a/flang/test/Integration/split-lto-unit-2.f90
+++ b/flang/test/Integration/split-lto-unit-2.f90
@@ -1,19 +1,19 @@
 ! Check that -flto=thin without -fsplit-lto-unit has EnableSplitLTOUnit = 0
 ! RUN: %flang -flto=thin  -S -o - %s |  FileCheck %s --check-prefix=SPLIT0
-! RUN: %flang -flto=thin --target=x86_64-linux-gnu -S -o - %s |  FileCheck %s --check-prefix=SPLIT0
-! RUN: %flang -flto=thin --target=x86_64-apple-macosx -S -o - %s | FileCheck %s --check-prefix=SPLIT0
+! RUN: %if x86-registered-target %{ %flang -flto=thin --target=x86_64-linux-gnu -S -o - %s |  FileCheck %s --check-prefix=SPLIT0 %}
+! RUN: %if x86-registered-target %{ %flang -flto=thin --target=x86_64-apple-macosx -S -o - %s | FileCheck %s --check-prefix=SPLIT0 %}
 
 ! Check that -flto=thin with -fsplit-lto-unit has EnableSplitLTOUnit = 1
 ! RUN: %flang -flto=thin -fsplit-lto-unit -S -o - %s | FileCheck %s --check-prefix=SPLIT1
-! RUN: %flang -flto=thin --target=x86_64-linux-gnu -fsplit-lto-unit -S -o - %s | FileCheck %s --check-prefix=SPLIT1
-! RUN: %flang -flto=thin --target=x86_64-apple-macosx -fsplit-lto-unit -S -o - %s | FileCheck %s --check-prefix=SPLIT1
+! RUN: %if x86-registered-target %{ %flang -flto=thin --target=x86_64-linux-gnu -fsplit-lto-unit -S -o - %s | FileCheck %s --check-prefix=SPLIT1 %}
+! RUN: %if x86-registered-target %{ %flang -flto=thin --target=x86_64-apple-macosx -fsplit-lto-unit -S -o - %s | FileCheck %s --check-prefix=SPLIT1 %}
 
 ! Check that regular LTO has EnableSplitLTOUnit = 1 
 ! RUN: %flang -flto -S -o - %s | FileCheck %s --implicit-check-not="EnableSplitLTOUnit" --check-prefix=SPLIT1
-! RUN: %flang -flto --target=x86_64-linux-gnu -S -o - %s |  FileCheck %s --check-prefix=SPLIT1
+! RUN: %if x86-registered-target %{ %flang -flto --target=x86_64-linux-gnu -S -o - %s |  FileCheck %s --check-prefix=SPLIT1 %}
 
 ! Check that regular LTO has no EnableSplitLTOUnit for apple targets
-! RUN: %flang -flto --target=x86_64-apple-macosx -S -o - %s | FileCheck %s --check-prefix=NOSPLIT
+! RUN: %if x86-registered-target %{ %flang -flto --target=x86_64-apple-macosx -S -o - %s | FileCheck %s --check-prefix=NOSPLIT %}
 
 ! SPLIT0: !{i32 1, !"EnableSplitLTOUnit", i32 0}
 ! SPLIT1: !{i32 1, !"EnableSplitLTOUnit", i32 1}