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Clang 21.1.0 and later fails to build target drivers/gpu/drm/amd/display/dc/* targets on Kernel 5.10 x86_64 because of -mhard-float

[BUG] linux-stableA bug that is present in linux-stable and not mainline.A bug that is present in linux-stable and not mainline.

[PATCH] AcceptedA submitted patch has been accepted upstreamA submitted patch has been accepted upstream

Status: Open.

#2156 In ClangBuiltLinux/linux;

· ajordanr-google opened on Mar 27, 2026

Link failure with LLVM 22 for LTO+CFI

[FEATURE] CFIRelated to building the kernel with Clang Control Flow IntegrityRelated to building the kernel with Clang Control Flow Integrity

[FEATURE] LTORelated to building the kernel with LLVM Link Time OptimizationRelated to building the kernel with LLVM Link Time Optimization

[TOOL] lldThe issue is relevant to LLD linkerThe issue is relevant to LLD linker

Compiler crashThis bug makes Clang crash, emitting a backtraceThis bug makes Clang crash, emitting a backtrace

more info neededMore information requested to issue author from project members.More information requested to issue author from project members.

Status: Open.

#2152 In ClangBuiltLinux/linux;

· cgzones opened on Feb 27, 2026

-Wframe-larger-than in drivers/media/platform/rockchip/rkvdec/rkvdec-vdpu383-h264.c

-Wframe-larger-than=

[ARCH] loongarchThis bug impacts ARCH=loongarchThis bug impacts ARCH=loongarch

[BUG] linuxA bug that should be fixed in the mainline kernel.A bug that should be fixed in the mainline kernel.

Status: Open.

#2151 In ClangBuiltLinux/linux;

· nathanchance opened on Feb 17, 2026

LLVM 22 release cycle

announcementjust a heads upjust a heads up

Status: Open.

#2150 In ClangBuiltLinux/linux;

· beakthoven opened on Jan 16, 2026

ppc64 boot wrapper linking fails with LLD 21.1.7

[ARCH] powerpcThis bug impacts ARCH=powerpcThis bug impacts ARCH=powerpc

[TOOL] lldThe issue is relevant to LLD linkerThe issue is relevant to LLD linker

Status: Open.

#2146 In ClangBuiltLinux/linux;

· Gelbpunkt opened on Dec 12, 2025

-Wincompatible-function-pointer-types-strict in drivers/counter/

-Wincompatible-function-pointer-types-strict

[BUG] linuxA bug that should be fixed in the mainline kernel.A bug that should be fixed in the mainline kernel.

[PATCH] RejectedThe submitted patch was rejectedThe submitted patch was rejected

Status: Open.

#2145 In ClangBuiltLinux/linux;

· nathanchance opened on Dec 11, 2025

arm64/loong/riscv: consider turning CONFIG_DRM_AMD_DC_FP back on for clang

Status: Open.

#2138 In ClangBuiltLinux/linux;

· peppergrayxyz opened on Oct 20, 2025

arm64: Improve clang to use zero register for inline asm

[ARCH] arm64This bug impacts ARCH=arm64This bug impacts ARCH=arm64

[BUG] llvmA bug that should be fixed in upstream LLVMA bug that should be fixed in upstream LLVM

enhancementNew feature or requestNew feature or request

feature-requestNot a bug per-seNot a bug per-se

Status: Open.

#2127 In ClangBuiltLinux/linux;

· mrutland-arm opened on Oct 8, 2025

-Wframe-larger-than in drivers/gpu/drm/omapdrm/dss/dispc.c after LLVM commit 055bfc027141bb

-Wframe-larger-than=

[BUG] llvmA bug that should be fixed in upstream LLVMA bug that should be fixed in upstream LLVM

[WORKAROUND] SubmittedThis bug has a submitted workaroundThis bug has a submitted workaround

Status: Open.

#2123 In ClangBuiltLinux/linux;

· nathanchance opened on Sep 30, 2025

error: invalid output size for constraint '=a' for ARCH=i386 after e2ffa15b9baa

[ARCH] x86This bug impacts ARCH=i386This bug impacts ARCH=i386

[BUG] UntriagedSomething isn't workingSomething isn't working

Status: Open.

#2121 In ClangBuiltLinux/linux;

· nathanchance opened on Sep 30, 2025

wrong DCE (__bad_copy_from exists) due to optimization failure under -m32 -fsanitize=alignment fprofile-instr-generate

[ARCH] x86This bug impacts ARCH=i386This bug impacts ARCH=i386

Status: Open.

#2120 In ClangBuiltLinux/linux;

· kees opened on Aug 26, 2025

clang-20 built kernel fails to boot with UBSAN_ALIGNMENT=y while gcc-14 built kernel boots ok with UBSAN_ALIGNMENT=y (v6.17-rc2, ppc64)

Status: Open.

#2119 In ClangBuiltLinux/linux;

· ernsteiswuerfel opened on Aug 21, 2025