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llvm-project/clang/test/CodeGen/arm-bf16-softfloat.c

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[Driver][ARM] Fix testcase that should only run on ARM Fix testcase introduced in d1a3396bfbc6fd6df927f2864c18d86e742cabff.
2020-07-29 21:32:51 +08:00
// REQUIRES: arm-registered-target
[Driver][ARM] Disable unsupported features when nofp arch extension is used A list of target features is disabled when there is no hardware floating-point support. This is the case when one of the following options is passed to clang: - -mfloat-abi=soft - -mfpu=none This option list is missing, however, the extension "+nofp" that can be specified in -march flags, such as "-march=armv8-a+nofp". This patch also disables unsupported target features when nofp is passed to -march. Differential Revision: https://reviews.llvm.org/D82948
2020-07-22 00:18:20 +08:00
// RUN: not %clang -target arm-arm-none-eabi -march=armv8-a+bf16 -mfloat-abi=soft -c %s -o %t 2>&1 | FileCheck %s
// RUN: not %clang -target arm-arm-none-eabi -march=armv8-a+bf16 -mfpu=none -c %s -o %t 2>&1 | FileCheck %s
// RUN: not %clang -target arm-arm-none-eabi -march=armv8-a+bf16+nofp -c %s -o %t 2>&1 | FileCheck %s
// RUN: not %clang -target arm-arm-none-eabi -march=armv8-a+bf16+fp+nofp -c %s -o %t 2>&1 | FileCheck %s
// RUN: %clang -target arm-arm-none-eabi -march=armv8-a+bf16+fp -c %s -o %t
// RUN: %clang -target arm-arm-none-eabi -march=armv8-a+bf16+nofp+fp -c %s -o %t
[ARM] Add __bf16 as new Bfloat16 C Type Summary: This patch upstreams support for a new storage only bfloat16 C type. This type is used to implement primitive support for bfloat16 data, in line with the Bfloat16 extension of the Armv8.6-a architecture, as detailed here: https://community.arm.com/developer/ip-products/processors/b/processors-ip-blog/posts/arm-architecture-developments-armv8-6-a The bfloat type, and its properties are specified in the Arm Architecture Reference Manual: https://developer.arm.com/docs/ddi0487/latest/arm-architecture-reference-manual-armv8-for-armv8-a-architecture-profile In detail this patch: - introduces an opaque, storage-only C-type __bf16, which introduces a new bfloat IR type. This is part of a patch series, starting with command-line and Bfloat16 assembly support. The subsequent patches will upstream intrinsics support for BFloat16, followed by Matrix Multiplication and the remaining Virtualization features of the armv8.6-a architecture. The following people contributed to this patch: - Luke Cheeseman - Momchil Velikov - Alexandros Lamprineas - Luke Geeson - Simon Tatham - Ties Stuij Reviewers: SjoerdMeijer, rjmccall, rsmith, liutianle, RKSimon, craig.topper, jfb, LukeGeeson, fpetrogalli Reviewed By: SjoerdMeijer Subscribers: labrinea, majnemer, asmith, dexonsmith, kristof.beyls, arphaman, danielkiss, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D76077
2020-06-05 07:20:02 +08:00
// CHECK: error: __bf16 is not supported on this target
extern __bf16 var;