llvm.org GIT mirror llvm / release_40 test / CodeGen / PowerPC / swaps-le-6.ll
release_40

Tree @release_40 (Download .tar.gz)

swaps-le-6.ll @release_40raw · history · blame

; RUN: llc -verify-machineinstrs -mcpu=pwr8 \
; RUN:   -mtriple=powerpc64le-unknown-linux-gnu -O3 < %s | FileCheck %s

; RUN: llc -mcpu=pwr9 -mtriple=powerpc64le-unknown-linux-gnu -O3 \
; RUN:   -verify-machineinstrs < %s | FileCheck %s --check-prefix=CHECK-P9 \
; RUN:   --implicit-check-not xxswapd

; RUN: llc -mcpu=pwr9 -mtriple=powerpc64le-unknown-linux-gnu -O3 \
; RUN:   -verify-machineinstrs -mattr=-power9-vector < %s | FileCheck %s

; These tests verify that VSX swap optimization works when loading a scalar
; into a vector register.


@x = global <2 x double> <double 9.970000e+01, double -1.032220e+02>, align 16
@z = global <2 x double> <double 2.332000e+01, double 3.111111e+01>, align 16
@y = global double 1.780000e+00, align 8

define void @bar0() {
entry:
  %0 = load <2 x double>, <2 x double>* @x, align 16
  %1 = load double, double* @y, align 8
  %vecins = insertelement <2 x double> %0, double %1, i32 0
  store <2 x double> %vecins, <2 x double>* @z, align 16
  ret void
}

; CHECK-LABEL: @bar0
; CHECK-DAG: lxvd2x [[REG1:[0-9]+]]
; CHECK-DAG: lxsdx [[REG2:[0-9]+]]
; CHECK: xxspltd [[REG4:[0-9]+]], [[REG2]], 0
; CHECK: xxpermdi [[REG5:[0-9]+]], [[REG4]], [[REG1]], 1
; CHECK: stxvd2x [[REG5]]

; CHECK-P9-LABEL: @bar0
; CHECK-P9-DAG: lxvx [[REG1:[0-9]+]]
; CHECK-P9-DAG: lfd [[REG2:[0-9]+]], 0(3)
; CHECK-P9: xxspltd [[REG4:[0-9]+]], [[REG2]], 0
; CHECK-P9: xxpermdi [[REG5:[0-9]+]], [[REG1]], [[REG4]], 1
; CHECK-P9: stxvx [[REG5]]

define void @bar1() {
entry:
  %0 = load <2 x double>, <2 x double>* @x, align 16
  %1 = load double, double* @y, align 8
  %vecins = insertelement <2 x double> %0, double %1, i32 1
  store <2 x double> %vecins, <2 x double>* @z, align 16
  ret void
}

; CHECK-LABEL: @bar1
; CHECK-DAG: lxvd2x [[REG1:[0-9]+]]
; CHECK-DAG: lxsdx [[REG2:[0-9]+]]
; CHECK: xxspltd [[REG4:[0-9]+]], [[REG2]], 0
; CHECK: xxmrghd [[REG5:[0-9]+]], [[REG1]], [[REG4]]
; CHECK: stxvd2x [[REG5]]

; CHECK-P9-LABEL: @bar1
; CHECK-P9-DAG: lxvx [[REG1:[0-9]+]]
; CHECK-P9-DAG: lfd [[REG2:[0-9]+]], 0(3)
; CHECK-P9: xxspltd [[REG4:[0-9]+]], [[REG2]], 0
; CHECK-P9: xxmrgld [[REG5:[0-9]+]], [[REG4]], [[REG1]]
; CHECK-P9: stxvx [[REG5]]