From 31c8059e5d8575e9f8c92c60ccaf08dbc35657d1 Mon Sep 17 00:00:00 2001 From: Filipe Cabecinhas Date: Fri, 16 May 2014 22:47:58 +0000 Subject: [PATCH] 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 --- test/Analysis/CostModel/X86/vselect-cost.ll | 126 ++++++++++++++++++++ 1 file changed, 126 insertions(+) create mode 100644 test/Analysis/CostModel/X86/vselect-cost.ll diff --git a/test/Analysis/CostModel/X86/vselect-cost.ll b/test/Analysis/CostModel/X86/vselect-cost.ll new file mode 100644 index 00000000000..2416777506d --- /dev/null +++ b/test/Analysis/CostModel/X86/vselect-cost.ll @@ -0,0 +1,126 @@ +; 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 +; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 -cost-model -analyze | FileCheck %s -check-prefix=CHECK -check-prefix=SSE41 +; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7-avx -cost-model -analyze | FileCheck %s -check-prefix=CHECK -check-prefix=AVX +; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=core-avx2 -cost-model -analyze | FileCheck %s -check-prefix=CHECK -check-prefix=AVX2 + + +; Verify the cost of vector select instructions. + +; SSE41 added blend instructions with an immediate for <2 x double> and +; <4 x float>. Integers of the same size should also use those instructions. + +define <2 x i64> @test_2i64(<2 x i64> %a, <2 x i64> %b) { +; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_2i64': +; SSE2: Cost Model: {{.*}} 4 for instruction: %sel = select <2 x i1> +; SSE41: Cost Model: {{.*}} 1 for instruction: %sel = select <2 x i1> +; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <2 x i1> +; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <2 x i1> + %sel = select <2 x i1> , <2 x i64> %a, <2 x i64> %b + ret <2 x i64> %sel +} + +define <2 x double> @test_2double(<2 x double> %a, <2 x double> %b) { +; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_2double': +; SSE2: Cost Model: {{.*}} 3 for instruction: %sel = select <2 x i1> +; SSE41: Cost Model: {{.*}} 1 for instruction: %sel = select <2 x i1> +; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <2 x i1> +; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <2 x i1> + %sel = select <2 x i1> , <2 x double> %a, <2 x double> %b + ret <2 x double> %sel +} + +define <4 x i32> @test_4i32(<4 x i32> %a, <4 x i32> %b) { +; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_4i32': +; SSE2: Cost Model: {{.*}} 8 for instruction: %sel = select <4 x i1> +; SSE41: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1> +; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1> +; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1> + %sel = select <4 x i1> , <4 x i32> %a, <4 x i32> %b + ret <4 x i32> %sel +} + +define <4 x float> @test_4float(<4 x float> %a, <4 x float> %b) { +; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_4float': +; SSE2: Cost Model: {{.*}} 7 for instruction: %sel = select <4 x i1> +; SSE41: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1> +; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1> +; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1> + %sel = select <4 x i1> , <4 x float> %a, <4 x float> %b + ret <4 x float> %sel +} + +define <16 x i8> @test_16i8(<16 x i8> %a, <16 x i8> %b) { +; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_16i8': +; SSE2: Cost Model: {{.*}} 32 for instruction: %sel = select <16 x i1> +; SSE41: Cost Model: {{.*}} 1 for instruction: %sel = select <16 x i1> +; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <16 x i1> +; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <16 x i1> + %sel = select <16 x i1> , <16 x i8> %a, <16 x i8> %b + ret <16 x i8> %sel +} + +; AVX added blend instructions with an immediate for <4 x double> and +; <8 x float>. Integers of the same size should also use those instructions. +define <4 x i64> @test_4i64(<4 x i64> %a, <4 x i64> %b) { +; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_4i64': +; SSE2: Cost Model: {{.*}} 8 for instruction: %sel = select <4 x i1> +; SSE41: Cost Model: {{.*}} 2 for instruction: %sel = select <4 x i1> +; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1> +; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1> + %sel = select <4 x i1> , <4 x i64> %a, <4 x i64> %b + ret <4 x i64> %sel +} + +define <4 x double> @test_4double(<4 x double> %a, <4 x double> %b) { +; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_4double': +; SSE2: Cost Model: {{.*}} 6 for instruction: %sel = select <4 x i1> +; SSE41: Cost Model: {{.*}} 2 for instruction: %sel = select <4 x i1> +; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1> +; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <4 x i1> + %sel = select <4 x i1> , <4 x double> %a, <4 x double> %b + ret <4 x double> %sel +} + +define <8 x i32> @test_8i32(<8 x i32> %a, <8 x i32> %b) { +; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_8i32': +; SSE2: Cost Model: {{.*}} 16 for instruction: %sel = select <8 x i1> +; SSE41: Cost Model: {{.*}} 2 for instruction: %sel = select <8 x i1> +; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <8 x i1> +; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <8 x i1> + %sel = select <8 x i1> , <8 x i32> %a, <8 x i32> %b + ret <8 x i32> %sel +} + +define <8 x float> @test_8float(<8 x float> %a, <8 x float> %b) { +; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_8float': +; SSE2: Cost Model: {{.*}} 14 for instruction: %sel = select <8 x i1> +; SSE41: Cost Model: {{.*}} 2 for instruction: %sel = select <8 x i1> +; AVX: Cost Model: {{.*}} 1 for instruction: %sel = select <8 x i1> +; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <8 x i1> + %sel = select <8 x i1> , <8 x float> %a, <8 x float> %b + ret <8 x float> %sel +} + +; AVX2 +define <16 x i16> @test_16i16(<16 x i16> %a, <16 x i16> %b) { +; CHECK:Printing analysis 'Cost Model Analysis' for function 'test_16i16': +; SSE2: Cost Model: {{.*}} 32 for instruction: %sel = select <16 x i1> +; SSE41: Cost Model: {{.*}} 2 for instruction: %sel = select <16 x i1> +;;; FIXME: This AVX cost is obviously wrong. We shouldn't be scalarizing. +; AVX: Cost Model: {{.*}} 32 for instruction: %sel = select <16 x i1> +; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <16 x i1> + %sel = select <16 x i1> , <16 x i16> %a, <16 x i16> %b + ret <16 x i16> %sel +} + +define <32 x i8> @test_32i8(<32 x i8> %a, <32 x i8> %b) { +; CHECK: Printing analysis 'Cost Model Analysis' for function 'test_32i8': +; SSE2: Cost Model: {{.*}} 64 for instruction: %sel = select <32 x i1> +; SSE41: Cost Model: {{.*}} 2 for instruction: %sel = select <32 x i1> +;;; FIXME: This AVX cost is obviously wrong. We shouldn't be scalarizing. +; AVX: Cost Model: {{.*}} 64 for instruction: %sel = select <32 x i1> +; AVX2: Cost Model: {{.*}} 1 for instruction: %sel = select <32 x i1> + %sel = select <32 x i1> , <32 x i8> %a, <32 x i8> %b + ret <32 x i8> %sel +} +