Yuki Okushi c122ac3e69

Rollup merge of #111331 - taiki-e:s390x-asm-cc, r=Amanieu ...

Mark s390x condition code register as clobbered in inline assembly

Various s390x instructions (arithmetic operations, logical operations, comparisons, etc. see also "Condition Codes" section in [z/Architecture Reference Summary](https://www.ibm.com/support/pages/zarchitecture-reference-summary)) modify condition code register `cc`, but AFAIK there is currently no way to mark it as clobbered in `asm!`.

`cc` register definition in LLVM:
https://github.com/llvm/llvm-project/blob/main/llvm/lib/Target/SystemZ/SystemZRegisterInfo.td#L320

This PR also updates asm_experimental_arch docs in the unstable-book to mention s390x registers.

cc `@uweigand`

r? `@Amanieu`

2023-05-08 19:41:50 +09:00

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coverageinfo

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debuginfo

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llvm

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abi.rs

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allocator.rs

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asm.rs

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attributes.rs

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base.rs

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builder.rs

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callee.rs

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common.rs

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consts.rs

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context.rs

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declare.rs

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errors.rs

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intrinsic.rs

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lib.rs

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llvm_util.rs

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mono_item.rs

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type_.rs

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type_of.rs

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va_arg.rs

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value.rs

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