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llvm-mirror/test/CodeGen/PowerPC/pr27078.ll
Stefan Pintilie f220e7cb76 [PowerPC] Replace the Post RA List Scheduler with the Machine Scheduler
We want to run the Machine Scheduler instead of the List Scheduler after RA.
  Checked with a performance run on a Power 9 machine with SPEC 2006 and while
  some benchmarks improved and others degraded the geomean was slightly improved
  with the Machine Scheduler.

  Differential Revision: https://reviews.llvm.org/D45265

llvm-svn: 336295
2018-07-04 18:54:25 +00:00

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LLVM

; RUN: llc -verify-machineinstrs -mtriple=powerpc64-linux-gnu -mcpu=pwr8 -mattr=+vsx < %s | FileCheck %s
define <4 x float> @bar(float* %p, float* %q) {
%1 = bitcast float* %p to <12 x float>*
%2 = bitcast float* %q to <12 x float>*
%3 = load <12 x float>, <12 x float>* %1, align 16
%4 = load <12 x float>, <12 x float>* %2, align 16
%5 = fsub <12 x float> %4, %3
%6 = shufflevector <12 x float> %5, <12 x float> undef, <4 x i32> <i32 0, i32 3, i32 6, i32 9>
ret <4 x float> %6
; CHECK: xxsldwi
; CHECK-DAG: vmrghw
; CHECK-DAG: vmrglw
; CHECK-NEXT: xxsldwi
; CHECK-NEXT: xxsldwi
; CHECK-NEXT: xxsldwi
; CHECK-NEXT: blr
}