[llvm] r321010 - [PPC] Disable reg+reg to reg+imm transformation.

[Davide Italiano via llvm-commits]

Maybe you can add the test that's breaking here? (so that if somebody
tries to enable this again will get a failure).

On Mon, Dec 18, 2017 at 10:56 AM, Benjamin Kramer via llvm-commits
<llvm-commits at lists.llvm.org> wrote:
> Author: d0k
> Date: Mon Dec 18 10:56:57 2017
> New Revision: 321010
>
> URL: http://llvm.org/viewvc/llvm-project?rev=321010&view=rev
> Log:
> [PPC] Disable reg+reg to reg+imm transformation.
>
> It creates invalid instructions. PR35688.
>
> Modified:
>     llvm/trunk/lib/Target/PowerPC/PPCMIPeephole.cpp
>
> Modified: llvm/trunk/lib/Target/PowerPC/PPCMIPeephole.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCMIPeephole.cpp?rev=321010&r1=321009&r2=321010&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/PowerPC/PPCMIPeephole.cpp (original)
> +++ llvm/trunk/lib/Target/PowerPC/PPCMIPeephole.cpp Mon Dec 18 10:56:57 2017
> @@ -55,7 +55,7 @@ FixedPointRegToImm("ppc-reg-to-imm-fixed
>                              "convert reg-reg instructions to reg-imm"));
>
>  static cl::opt<bool>
> -ConvertRegReg("ppc-convert-rr-to-ri", cl::Hidden, cl::init(true),
> +ConvertRegReg("ppc-convert-rr-to-ri", cl::Hidden, cl::init(false),
>                cl::desc("Convert eligible reg+reg instructions to reg+imm"));
>
>  static cl::opt<bool>
>
>
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-- 
Davide

"There are no solved problems; there are only problems that are more
or less solved" -- Henri Poincare