[llvm-bugs] [Bug 36957] New: [X86] Split ReadAfterLd into ReadAfterLd/ReadAfterFLd/ReadAfterVecLd

via llvm-bugs llvm-bugs at lists.llvm.org
Fri Mar 30 06:49:36 PDT 2018


            Bug ID: 36957
           Summary: [X86] Split ReadAfterLd into
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: llvm-dev at redking.me.uk
                CC: andrea.dibiagio at gmail.com, clement.courbet at gmail.com,
                    craig.topper at gmail.com, llvm-bugs at lists.llvm.org
            Blocks: 32325

Similar to what was done for WriteLoad, we need to split ReadAfterLd to more
correctly allow for the different load latencies on gpr, float and vector-int

Referenced Bugs:

[Bug 32325] [META][X86] Improve implementation and use of X86 scheduler models
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