[clang] [llvm] Add support for flag output operand "=@cc" for SystemZ. (PR #125970)

[Ulrich Weigand via llvm-commits]

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+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; Test Flag Output Operands with 14 combinations of CCMASK and optimizations.
+; Different ways of parenthesizing with mix of == and != operator for
+; AND/OR/XOR combinations.
+
+; RUN: llc < %s -verify-machineinstrs -mtriple=s390x-linux-gnu -O3 | FileCheck %s
+
+; Test ((cc == 0) || (cc != 1)) ^ (cc != 2)
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uweigand wrote:

And the same comment here ... and looks like most of the remaining tests.  These don't actually verify what you apparently want to verify.

https://github.com/llvm/llvm-project/pull/125970