https://bugs.kde.org/show_bug.cgi?id=391311
Bug ID: 391311
Summary: [Patch] Fix arm64 valgrind tests compilation with
clang
Product: valgrind
Version: 3.13.0
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: jsew...@acm.org
Reporter: vtara...@google.com
Target Milestone: ---
Created attachment 111149
--> https://bugs.kde.org/attachment.cgi?id=111149&action=edit
Fix arm64 valgrind tests compilation with clang
Android Open Source Project compiles Valgrind using clang, with it's own
assember, with semantics different from gcc's.
Switching to external assember with "-no-integrated-as" is not an option, as it
doesn't propagate arch feature expansions properly.
The attached patch makes arm64 Valgrind tests compilation clang-friendly:
- per
https://developer.arm.com/docs/100069/0607/a64-floating-point-instructions/fcmp
fcmp accept a floating point zero, replacing #0 with #0.0
- per
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0802b/MOVI_advsimd_vector.html
movi's 8-bit immediate is not allowed to be shifted, removing LSL #0.
- ifdef-ing crypto assembly with __ARM_FEATURE_CRYPTO. Tests will be included
in kryo, and excluded for generic arm64 builds.
- per
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0802b/ADD_addsub_ext.html
add extended register's 64-bit version, extend is required to be uxtx
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