[llvm] r343795 - [llvm-mca][x86] Add PR36951 ReadAfterLd test case

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Thu Oct  4 09:26:56 2018
New Revision: 343795

URL: http://llvm.org/viewvc/llvm-project?rev=343795&view=rev
Log:
[llvm-mca][x86] Add PR36951 ReadAfterLd test case

Added:
    llvm/trunk/test/tools/llvm-mca/X86/read-after-ld-3.s

Added: llvm/trunk/test/tools/llvm-mca/X86/read-after-ld-3.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-mca/X86/read-after-ld-3.s?rev=343795&view=auto
==============================================================================
--- llvm/trunk/test/tools/llvm-mca/X86/read-after-ld-3.s (added)
+++ llvm/trunk/test/tools/llvm-mca/X86/read-after-ld-3.s Thu Oct  4 09:26:56 2018
@@ -0,0 +1,50 @@
+# NOTE: Assertions have been autogenerated by utils/update_mca_test_checks.py
+# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=sandybridge -iterations=1 -resource-pressure=false -instruction-info=false -timeline < %s | FileCheck %s -check-prefix=ALL -check-prefix=SANDY
+# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=haswell -iterations=1 -resource-pressure=false -instruction-info=false -timeline < %s | FileCheck %s -check-prefix=ALL -check-prefix=HASWELL
+# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=broadwell -iterations=1 -resource-pressure=false -instruction-info=false -timeline < %s | FileCheck %s -check-prefix=ALL -check-prefix=BDWELL
+# RUN: llvm-mca -mtriple=x86_64-unknown-unknown -mcpu=skylake -iterations=1 -resource-pressure=false -instruction-info=false -timeline < %s | FileCheck %s -check-prefix=ALL -check-prefix=SKYLAKE
+
+# PR36951
+addl    %edi, %esi
+addl    (%rdi), %esi
+
+# ALL:          Iterations:        1
+# ALL-NEXT:     Instructions:      2
+# ALL-NEXT:     Total Cycles:      9
+# ALL-NEXT:     Total uOps:        3
+
+# BDWELL:       Dispatch Width:    4
+# BDWELL-NEXT:  uOps Per Cycle:    0.33
+# BDWELL-NEXT:  IPC:               0.22
+# BDWELL-NEXT:  Block RThroughput: 0.8
+
+# HASWELL:      Dispatch Width:    4
+# HASWELL-NEXT: uOps Per Cycle:    0.33
+# HASWELL-NEXT: IPC:               0.22
+# HASWELL-NEXT: Block RThroughput: 0.8
+
+# SANDY:        Dispatch Width:    4
+# SANDY-NEXT:   uOps Per Cycle:    0.33
+# SANDY-NEXT:   IPC:               0.22
+# SANDY-NEXT:   Block RThroughput: 0.8
+
+# SKYLAKE:      Dispatch Width:    6
+# SKYLAKE-NEXT: uOps Per Cycle:    0.33
+# SKYLAKE-NEXT: IPC:               0.22
+# SKYLAKE-NEXT: Block RThroughput: 0.5
+
+# ALL:          Timeline view:
+# ALL-NEXT:     Index     012345678
+
+# ALL:          [0,0]     DeER .  .   addl	%edi, %esi
+# ALL-NEXT:     [0,1]     DeeeeeeER   addl	(%rdi), %esi
+
+# ALL:          Average Wait times (based on the timeline view):
+# ALL-NEXT:     [0]: Executions
+# ALL-NEXT:     [1]: Average time spent waiting in a scheduler's queue
+# ALL-NEXT:     [2]: Average time spent waiting in a scheduler's queue while ready
+# ALL-NEXT:     [3]: Average time elapsed from WB until retire stage
+
+# ALL:                [0]    [1]    [2]    [3]
+# ALL-NEXT:     0.     1     1.0    1.0    0.0       addl	%edi, %esi
+# ALL-NEXT:     1.     1     1.0    0.0    0.0       addl	(%rdi), %esi