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Added tests for the cost of lowering VSELECT instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209045 91177308-0d34-0410-b5e6-96231b3b80d8
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Filipe Cabecinhas
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d77c1c4465
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126
test/Analysis/CostModel/X86/vselect-cost.ll
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126
test/Analysis/CostModel/X86/vselect-cost.ll
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; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 -mattr=+sse2,-sse4.1 -cost-model -analyze | FileCheck %s -check-prefix=CHECK -check-prefix=SSE2
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; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 -cost-model -analyze | FileCheck %s -check-prefix=CHECK -check-prefix=SSE41
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; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7-avx -cost-model -analyze | FileCheck %s -check-prefix=CHECK -check-prefix=AVX
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; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=core-avx2 -cost-model -analyze | FileCheck %s -check-prefix=CHECK -check-prefix=AVX2
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; Verify the cost of vector select instructions.
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; SSE41 added blend instructions with an immediate for <2 x double> and
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; <4 x float>. Integers of the same size should also use those instructions.
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define <2 x i64> @test_2i64(<2 x i64> %a, <2 x i64> %b) {
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; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_2i64':
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; SSE2: Cost Model: {{.*}} 4 for instruction: %sel = select <2 x i1>
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; SSE41: Cost Model: {{.*}} 1 for instruction: %sel = select <2 x i1>
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; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <2 x i1>
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; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <2 x i1>
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%sel = select <2 x i1> <i1 true, i1 false>, <2 x i64> %a, <2 x i64> %b
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ret <2 x i64> %sel
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}
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define <2 x double> @test_2double(<2 x double> %a, <2 x double> %b) {
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; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_2double':
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; SSE2: Cost Model: {{.*}} 3 for instruction: %sel = select <2 x i1>
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; SSE41: Cost Model: {{.*}} 1 for instruction: %sel = select <2 x i1>
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; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <2 x i1>
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; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <2 x i1>
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%sel = select <2 x i1> <i1 true, i1 false>, <2 x double> %a, <2 x double> %b
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ret <2 x double> %sel
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}
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define <4 x i32> @test_4i32(<4 x i32> %a, <4 x i32> %b) {
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; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_4i32':
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; SSE2: Cost Model: {{.*}} 8 for instruction: %sel = select <4 x i1>
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; SSE41: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1>
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; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1>
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; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1>
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%sel = select <4 x i1> <i1 true, i1 false, i1 true, i1 false>, <4 x i32> %a, <4 x i32> %b
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ret <4 x i32> %sel
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}
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define <4 x float> @test_4float(<4 x float> %a, <4 x float> %b) {
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; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_4float':
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; SSE2: Cost Model: {{.*}} 7 for instruction: %sel = select <4 x i1>
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; SSE41: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1>
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; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1>
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; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1>
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%sel = select <4 x i1> <i1 true, i1 false, i1 true, i1 true>, <4 x float> %a, <4 x float> %b
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ret <4 x float> %sel
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}
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define <16 x i8> @test_16i8(<16 x i8> %a, <16 x i8> %b) {
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; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_16i8':
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; SSE2: Cost Model: {{.*}} 32 for instruction: %sel = select <16 x i1>
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; SSE41: Cost Model: {{.*}} 1 for instruction: %sel = select <16 x i1>
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; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <16 x i1>
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; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <16 x i1>
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%sel = select <16 x i1> <i1 true, i1 false, i1 true, i1 true, i1 true, i1 false, i1 true, i1 true, i1 true, i1 false, i1 true, i1 true, i1 true, i1 false, i1 true, i1 true>, <16 x i8> %a, <16 x i8> %b
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ret <16 x i8> %sel
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}
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; AVX added blend instructions with an immediate for <4 x double> and
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; <8 x float>. Integers of the same size should also use those instructions.
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define <4 x i64> @test_4i64(<4 x i64> %a, <4 x i64> %b) {
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; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_4i64':
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; SSE2: Cost Model: {{.*}} 8 for instruction: %sel = select <4 x i1>
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; SSE41: Cost Model: {{.*}} 2 for instruction: %sel = select <4 x i1>
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; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1>
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; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1>
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%sel = select <4 x i1> <i1 true, i1 false, i1 false, i1 true>, <4 x i64> %a, <4 x i64> %b
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ret <4 x i64> %sel
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}
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define <4 x double> @test_4double(<4 x double> %a, <4 x double> %b) {
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; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_4double':
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; SSE2: Cost Model: {{.*}} 6 for instruction: %sel = select <4 x i1>
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; SSE41: Cost Model: {{.*}} 2 for instruction: %sel = select <4 x i1>
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; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1>
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; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1>
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%sel = select <4 x i1> <i1 true, i1 false, i1 true, i1 false>, <4 x double> %a, <4 x double> %b
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ret <4 x double> %sel
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}
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define <8 x i32> @test_8i32(<8 x i32> %a, <8 x i32> %b) {
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; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_8i32':
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; SSE2: Cost Model: {{.*}} 16 for instruction: %sel = select <8 x i1>
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; SSE41: Cost Model: {{.*}} 2 for instruction: %sel = select <8 x i1>
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; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <8 x i1>
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; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <8 x i1>
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%sel = select <8 x i1> <i1 true, i1 false, i1 true, i1 true, i1 true, i1 false, i1 true, i1 false>, <8 x i32> %a, <8 x i32> %b
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ret <8 x i32> %sel
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}
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define <8 x float> @test_8float(<8 x float> %a, <8 x float> %b) {
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; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_8float':
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; SSE2: Cost Model: {{.*}} 14 for instruction: %sel = select <8 x i1>
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; SSE41: Cost Model: {{.*}} 2 for instruction: %sel = select <8 x i1>
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; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <8 x i1>
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; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <8 x i1>
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%sel = select <8 x i1> <i1 true, i1 false, i1 false, i1 false, i1 true, i1 false, i1 false, i1 false>, <8 x float> %a, <8 x float> %b
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ret <8 x float> %sel
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}
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; AVX2
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define <16 x i16> @test_16i16(<16 x i16> %a, <16 x i16> %b) {
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; CHECK:Printing analysis 'Cost Model Analysis' for function 'test_16i16':
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; SSE2: Cost Model: {{.*}} 32 for instruction: %sel = select <16 x i1>
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; SSE41: Cost Model: {{.*}} 2 for instruction: %sel = select <16 x i1>
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;;; FIXME: This AVX cost is obviously wrong. We shouldn't be scalarizing.
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; AVX: Cost Model: {{.*}} 32 for instruction: %sel = select <16 x i1>
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; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <16 x i1>
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%sel = select <16 x i1> <i1 true, i1 false, i1 false, i1 false, i1 true, i1 false, i1 false, i1 false, i1 true, i1 false, i1 false, i1 false, i1 true, i1 false, i1 false, i1 false>, <16 x i16> %a, <16 x i16> %b
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ret <16 x i16> %sel
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}
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define <32 x i8> @test_32i8(<32 x i8> %a, <32 x i8> %b) {
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; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_32i8':
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; SSE2: Cost Model: {{.*}} 64 for instruction: %sel = select <32 x i1>
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; SSE41: Cost Model: {{.*}} 2 for instruction: %sel = select <32 x i1>
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;;; FIXME: This AVX cost is obviously wrong. We shouldn't be scalarizing.
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; AVX: Cost Model: {{.*}} 64 for instruction: %sel = select <32 x i1>
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; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <32 x i1>
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%sel = select <32 x i1> <i1 true, i1 false, i1 true, i1 true, i1 true, i1 false, i1 true, i1 true, i1 true, i1 false, i1 true, i1 true, i1 true, i1 false, i1 true, i1 true, i1 true, i1 false, i1 true, i1 true, i1 true, i1 false, i1 true, i1 true, i1 true, i1 false, i1 true, i1 true, i1 true, i1 false, i1 true, i1 true>, <32 x i8> %a, <32 x i8> %b
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ret <32 x i8> %sel
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}
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