[llvm] r321655 - [AArch64][GlobalISel] Enable GlobalISel at -O0 by default

[Quentin Colombet via llvm-commits]

Hi Hans,

Thanks for the reminder.

I think we should!
@Amara, did we get around a flag in clang to disable/enable global-isel, so that people can file more informed bugs or try it with optimizations?

Cheers,
-Quentin

> On Jan 17, 2018, at 7:41 AM, Hans Wennborg via llvm-commits <llvm-commits at lists.llvm.org> wrote:
> 
> Do you want to write something about this for the 6.0.0 release notes?
> 
> On Tue, Jan 2, 2018 at 5:30 PM, Amara Emerson via llvm-commits
> <llvm-commits at lists.llvm.org> wrote:
>> Author: aemerson
>> Date: Tue Jan  2 08:30:47 2018
>> New Revision: 321655
>> 
>> URL: http://llvm.org/viewvc/llvm-project?rev=321655&view=rev
>> Log:
>> [AArch64][GlobalISel] Enable GlobalISel at -O0 by default
>> 
>> Tests updated to explicitly use fast-isel at -O0 instead of implicitly.
>> 
>> This change also allows an explicit -fast-isel option to override an
>> implicitly enabled global-isel. Otherwise -fast-isel would have no effect at -O0.
>> 
>> Differential Revision: https://reviews.llvm.org/D41362
>> 
>> Modified:
>>    llvm/trunk/include/llvm/CodeGen/TargetPassConfig.h
>>    llvm/trunk/lib/CodeGen/TargetPassConfig.cpp
>>    llvm/trunk/lib/Target/AArch64/AArch64TargetMachine.cpp
>>    llvm/trunk/test/CodeGen/AArch64/GlobalISel/arm64-fallback.ll
>>    llvm/trunk/test/CodeGen/AArch64/GlobalISel/gisel-commandline-option.ll
>>    llvm/trunk/test/CodeGen/AArch64/aarch64_f16_be.ll
>>    llvm/trunk/test/CodeGen/AArch64/and-mask-removal.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-EXT-undef-mask.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-abi.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-abi_align.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-elf-constpool.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-elf-globals.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-fast-isel-alloca.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-fast-isel-br.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-fast-isel-call.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-fast-isel-conversion-fallback.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-fast-isel-conversion.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-fast-isel-fcmp.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-fast-isel-gv.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-fast-isel-icmp.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-fast-isel-intrinsic.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-fast-isel-materialize.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-fast-isel-noconvert.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-fast-isel-rem.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-fast-isel-ret.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-fast-isel.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-simd-scalar-to-vector.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-tls-dynamic-together.ll
>>    llvm/trunk/test/CodeGen/AArch64/arm64-vcvt_f.ll
>>    llvm/trunk/test/CodeGen/AArch64/br-cond-not-merge.ll
>>    llvm/trunk/test/CodeGen/AArch64/cmpxchg-O0.ll
>>    llvm/trunk/test/CodeGen/AArch64/cxx-tlscc.ll
>>    llvm/trunk/test/CodeGen/AArch64/fast-isel-atomic.ll
>>    llvm/trunk/test/CodeGen/AArch64/fast-isel-sp-adjust.ll
>>    llvm/trunk/test/CodeGen/AArch64/i128-fast-isel-fallback.ll
>>    llvm/trunk/test/CodeGen/AArch64/preferred-alignment.ll
>>    llvm/trunk/test/CodeGen/AArch64/swift-return.ll
>>    llvm/trunk/test/CodeGen/AArch64/swifterror.ll
>>    llvm/trunk/test/CodeGen/AArch64/swiftself.ll
>>    llvm/trunk/test/CodeGen/AArch64/tailcall-fastisel.ll
>>    llvm/trunk/test/DebugInfo/AArch64/asan-stack-vars.ll
>>    llvm/trunk/test/DebugInfo/AArch64/frameindices.ll
>>    llvm/trunk/test/DebugInfo/AArch64/line-header.ll
>>    llvm/trunk/test/DebugInfo/AArch64/prologue_end.ll
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