[clang] 83f4372 - [CodeGen] fix clang test that runs the optimizer pipeline; NFC

[Sanjay Patel via cfe-commits]

The test file dates back to:
https://reviews.llvm.org/D5698
...and I'm not familiar with _Complex enough to say how to fix this
properly (seems like the check lines are already limited such that -O0
rather than -O1 would work?).

But this file keeps wiggling unexpectedly, it's going to move again with
https://reviews.llvm.org/D75130

On Tue, Feb 25, 2020 at 1:15 PM Eric Christopher <echristo at gmail.com> wrote:

> Is there any way to pull this test out of clang and as an opt test? What's
> it trying to test?
>
> -eric
>
> On Tue, Feb 25, 2020 at 6:15 AM Sanjay Patel via cfe-commits <
> cfe-commits at lists.llvm.org> wrote:
>
>>
>> Author: Sanjay Patel
>> Date: 2020-02-25T09:13:49-05:00
>> New Revision: 83f4372f3a708ceaa800feff8b1bd92ae2c3be5f
>>
>> URL:
>> https://github.com/llvm/llvm-project/commit/83f4372f3a708ceaa800feff8b1bd92ae2c3be5f
>> DIFF:
>> https://github.com/llvm/llvm-project/commit/83f4372f3a708ceaa800feff8b1bd92ae2c3be5f.diff
>>
>> LOG: [CodeGen] fix clang test that runs the optimizer pipeline; NFC
>>
>> There's already a FIXME note on this file; it can break when the
>> underlying LLVM behavior changes independently of anything in clang.
>>
>> Added:
>>
>>
>> Modified:
>>     clang/test/CodeGen/complex-math.c
>>
>> Removed:
>>
>>
>>
>>
>> ################################################################################
>> diff  --git a/clang/test/CodeGen/complex-math.c
>> b/clang/test/CodeGen/complex-math.c
>> index e42418ad72c2..54dee473a364 100644
>> --- a/clang/test/CodeGen/complex-math.c
>> +++ b/clang/test/CodeGen/complex-math.c
>> @@ -93,14 +93,15 @@ float _Complex mul_float_rc(float a, float _Complex
>> b) {
>>    // X86: ret
>>    return a * b;
>>  }
>> +
>>  float _Complex mul_float_cc(float _Complex a, float _Complex b) {
>>    // X86-LABEL: @mul_float_cc(
>>    // X86: %[[AC:[^ ]+]] = fmul
>>    // X86: %[[BD:[^ ]+]] = fmul
>>    // X86: %[[AD:[^ ]+]] = fmul
>>    // X86: %[[BC:[^ ]+]] = fmul
>> -  // X86: %[[RR:[^ ]+]] = fsub float %[[AC]], %[[BD]]
>> -  // X86: %[[RI:[^ ]+]] = fadd float
>> +  // X86: %[[RR:[^ ]+]] = fsub
>> +  // X86: %[[RI:[^ ]+]] = fadd
>>    // X86-DAG: %[[AD]]
>>    // X86-DAG: ,
>>    // X86-DAG: %[[BC]]
>>
>>
>>
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