https://github.com/stuij updated https://github.com/llvm/llvm-project/pull/122881
>From 7865fd2bf4e0bb9c35b3d14f362732c994914568 Mon Sep 17 00:00:00 2001 From: Ties Stuij <ties.st...@arm.com> Date: Tue, 14 Jan 2025 10:01:33 +0000 Subject: [PATCH 1/2] [clang] document that by default FP turned off for ARM baremetal As per #117140. --- clang/docs/ReleaseNotes.rst | 2 ++ 1 file changed, 2 insertions(+) diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst index 794943b24a003c..663e7561f715c0 100644 --- a/clang/docs/ReleaseNotes.rst +++ b/clang/docs/ReleaseNotes.rst @@ -1076,6 +1076,8 @@ Arm and AArch64 Support in leaf functions after enabling ``-fno-omit-frame-pointer``, you can do so by adding the ``-momit-leaf-frame-pointer`` option. +- For ARM baremetal targets, the frame pointer (FP) is now turned off by default. + - Support has been added for the following processors (-mcpu identifiers in parenthesis): For AArch64: >From 69669604d4b37193ef8487af13043cd9d78484e3 Mon Sep 17 00:00:00 2001 From: Ties Stuij <ties.st...@arm.com> Date: Tue, 14 Jan 2025 11:42:41 +0000 Subject: [PATCH 2/2] Address review comment by moving text up and expanding on it --- clang/docs/ReleaseNotes.rst | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst index 663e7561f715c0..27193ca9349a6e 100644 --- a/clang/docs/ReleaseNotes.rst +++ b/clang/docs/ReleaseNotes.rst @@ -1071,13 +1071,15 @@ Arm and AArch64 Support - Implementation of SVE2.1 and SME2.1 in accordance with the Arm C Language Extensions (ACLE) is now available. +- For ARM baremetal targets, the frame pointer (FP) is now turned off by + default. To turn on frame pointers for Arm baremetal targets, use + the ``-fno-omit-frame-pointer`` command line option. + - In the ARM Target, the frame pointer (FP) of a leaf function can be retained by using the ``-fno-omit-frame-pointer`` option. If you want to eliminate the FP in leaf functions after enabling ``-fno-omit-frame-pointer``, you can do so by adding the ``-momit-leaf-frame-pointer`` option. -- For ARM baremetal targets, the frame pointer (FP) is now turned off by default. - - Support has been added for the following processors (-mcpu identifiers in parenthesis): For AArch64: _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
