derek.holloway
7502bf64a4
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71 lines
1.8 KiB
LLVM
71 lines
1.8 KiB
LLVM
; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple=powerpc64le-unknown-linux-gnu -O3 < %s | FileCheck %s
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; These tests verify that VSX swap optimization works for various
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; manipulations of <2 x double> vectors.
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@x = global <2 x double> <double 9.970000e+01, double -1.032220e+02>, align 16
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@z = global <2 x double> <double 2.332000e+01, double 3.111111e+01>, align 16
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define void @bar0(double %y) {
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entry:
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%0 = load <2 x double>, ptr @x, align 16
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%vecins = insertelement <2 x double> %0, double %y, i32 0
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store <2 x double> %vecins, ptr @z, align 16
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ret void
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}
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; CHECK-LABEL: @bar0
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; CHECK-DAG: xxswapd 0, 1
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; CHECK-DAG: lxvd2x [[REG1:[0-9]+]]
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; CHECK: xxmrgld [[REG2:[0-9]+]], 0, [[REG1]]
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; CHECK: stxvd2x [[REG2]]
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; CHECK-NOT: xxswapd
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define void @bar1(double %y) {
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entry:
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%0 = load <2 x double>, ptr @x, align 16
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%vecins = insertelement <2 x double> %0, double %y, i32 1
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store <2 x double> %vecins, ptr @z, align 16
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ret void
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}
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; CHECK-LABEL: @bar1
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; CHECK-DAG: xxswapd 0, 1
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; CHECK-DAG: lxvd2x [[REG1:[0-9]+]]
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; CHECK: xxpermdi [[REG2:[0-9]+]], [[REG1]], 0, 1
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; CHECK: stxvd2x [[REG2]]
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; CHECK-NOT: xxswapd
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define void @baz0() {
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entry:
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%0 = load <2 x double>, ptr @z, align 16
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%1 = load <2 x double>, ptr @x, align 16
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%vecins = shufflevector <2 x double> %0, <2 x double> %1, <2 x i32> <i32 0, i32 2>
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store <2 x double> %vecins, ptr @z, align 16
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ret void
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}
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; CHECK-LABEL: @baz0
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; CHECK: lxvd2x
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; CHECK: lxvd2x
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; CHECK: xxmrghd
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; CHECK: stxvd2x
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; CHECK-NOT: xxswapd
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define void @baz1() {
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entry:
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%0 = load <2 x double>, ptr @z, align 16
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%1 = load <2 x double>, ptr @x, align 16
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%vecins = shufflevector <2 x double> %0, <2 x double> %1, <2 x i32> <i32 3, i32 1>
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store <2 x double> %vecins, ptr @z, align 16
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ret void
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}
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; CHECK-LABEL: @baz1
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; CHECK: lxvd2x
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; CHECK: lxvd2x
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; CHECK: xxmrgld
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; CHECK: stxvd2x
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; CHECK-NOT: xxswapd
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