RFR: 8267265: Use new IR Test Framework to create tests for C2 Ideal transformations

[Vladimir Kozlov]

On Thu, 10 Feb 2022 22:12:53 GMT, Cesar Soares <duke at openjdk.java.net> wrote:

> Hi, can I please get some reviews for this Pull Request? Here is a summary of the changes:
> 
> - Add tests, using the new IR-based test framework, for several of the Ideal transformations on Add, Sub, Mul, Div, Loop nodes and some simple Scalar Replacement transformations.
> - Add more default IR regex's to IR-based test framework.

I got compilation failures for new tests. For example:

test/hotspot/jtreg/compiler/c2/irTests/SubLNodeIdealizationTests.java:83: error: cannot find symbol
    @IR(failOn = {IRNode.SUB})
                        ^
  symbol:   variable SUB
  location: class IRNode

-------------

PR: https://git.openjdk.java.net/jdk/pull/7434