Fix i8mm feature with bootstrap compiler. #1252
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r? @Amanieu (rust-highfive has picked a reviewer for you, use r? to override) |
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I'm not certain that this will work, as I do not have an arm system to test on. |
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If we accept this change, does it mean that we need to change it again when the beta compiler supports the |
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Yes, I believe that is what is usually done (#1150 for example). |
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Update stdarch 5 commits in 815d55c..cfba59f 2021-11-08 00:58:47 +0000 to 2021-11-19 01:29:04 +0000 - Work-around buggy Intel chips erroneously reporting BMI1/BMI2 support (rust-lang/stdarch#1249) - complete armv8 instructions (rust-lang/stdarch#1256) - Fix i8mm feature with bootstrap compiler. (rust-lang/stdarch#1252) - Fix unused link_name attribute. (rust-lang/stdarch#1251) - Add remaining insturctions (rust-lang/stdarch#1250)
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The beta compiler (1.57) does not support the i8mm feature. This fixes a build failure by not enabling it when bootstrapping.