[llvm] [DAG] Add generic expansion for ISD::FCANONICALIZE nodes (PR #142105)

[Dominik Steenken via llvm-commits]

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@@ -0,0 +1,131 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --default-march s390x-unknown-linux-gnu --version 5
+; RUN: llc -mtriple=s390x-linux-gnu -mcpu=z16 < %s | FileCheck %s -check-prefixes=Z16
+
+define float @canonicalize_fp32(float %a) {
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dominik-steenken wrote:

I have added half and extended fp tests. From what i understand, the other touched targets had already implemented their own legalization of `fcanonicalize`, and would have added tests for all of their supported floating point types then. This PR should not change anything there - the targets only needed to be touched since they assumed that common code would not expand by default.

https://github.com/llvm/llvm-project/pull/142105