diff options
Diffstat (limited to 'test/Analysis/CostModel/X86')
-rw-r--r-- | test/Analysis/CostModel/X86/arith.ll | 32 | ||||
-rw-r--r-- | test/Analysis/CostModel/X86/intrinsic-cost.ll | 32 |
2 files changed, 64 insertions, 0 deletions
diff --git a/test/Analysis/CostModel/X86/arith.ll b/test/Analysis/CostModel/X86/arith.ll index ae78d44..f0521ba 100644 --- a/test/Analysis/CostModel/X86/arith.ll +++ b/test/Analysis/CostModel/X86/arith.ll @@ -1,4 +1,6 @@ ; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s +; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-apple-macosx10.8.0 -mcpu=core2 | FileCheck %s --check-prefix=SSE3 +; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-apple-macosx10.8.0 -mcpu=core-avx2 | FileCheck %s --check-prefix=AVX2 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" target triple = "x86_64-apple-macosx10.8.0" @@ -32,7 +34,37 @@ define i32 @xor(i32 %arg) { ret i32 undef } +; CHECK: mul +define void @mul() { + ; A <2 x i32> gets expanded to a <2 x i64> vector. + ; A <2 x i64> vector multiply is implemented using + ; 3 PMULUDQ and 2 PADDS and 4 shifts. + ;CHECK: cost of 9 {{.*}} mul + %A0 = mul <2 x i32> undef, undef + ;CHECK: cost of 9 {{.*}} mul + %A1 = mul <2 x i64> undef, undef + ;CHECK: cost of 18 {{.*}} mul + %A2 = mul <4 x i64> undef, undef + ret void +} + +; SSE3: sse3mull +define void @sse3mull() { + ; SSE3: cost of 6 {{.*}} mul + %A0 = mul <4 x i32> undef, undef + ret void + ; SSE3: avx2mull +} + +; AVX2: avx2mull +define void @avx2mull() { + ; AVX2: cost of 9 {{.*}} mul + %A0 = mul <4 x i64> undef, undef + ret void + ; AVX2: fmul +} +; CHECK: fmul define i32 @fmul(i32 %arg) { ;CHECK: cost of 1 {{.*}} fmul %A = fmul <4 x float> undef, undef diff --git a/test/Analysis/CostModel/X86/intrinsic-cost.ll b/test/Analysis/CostModel/X86/intrinsic-cost.ll new file mode 100644 index 0000000..e235a36 --- /dev/null +++ b/test/Analysis/CostModel/X86/intrinsic-cost.ll @@ -0,0 +1,32 @@ +; RUN: opt -S -mtriple=x86_64-apple-darwin -mcpu=core2 -cost-model -analyze < %s | FileCheck %s -check-prefix=CORE2 +; RUN: opt -S -mtriple=x86_64-apple-darwin -mcpu=corei7 -cost-model -analyze < %s | FileCheck %s -check-prefix=COREI7 + +; If SSE4.1 roundps instruction is available it is cheap to lower, otherwise +; it'll be scalarized into calls which are expensive. +define void @test1(float* nocapture %f) nounwind { +vector.ph: + br label %vector.body + +vector.body: ; preds = %vector.body, %vector.ph + %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ] + %0 = getelementptr inbounds float* %f, i64 %index + %1 = bitcast float* %0 to <4 x float>* + %wide.load = load <4 x float>* %1, align 4 + %2 = call <4 x float> @llvm.ceil.v4f32(<4 x float> %wide.load) + store <4 x float> %2, <4 x float>* %1, align 4 + %index.next = add i64 %index, 4 + %3 = icmp eq i64 %index.next, 1024 + br i1 %3, label %for.end, label %vector.body + +for.end: ; preds = %vector.body + ret void + +; CORE2: Printing analysis 'Cost Model Analysis' for function 'test1': +; CORE2: Cost Model: Found an estimated cost of 400 for instruction: %2 = call <4 x float> @llvm.ceil.v4f32(<4 x float> %wide.load) + +; COREI7: Printing analysis 'Cost Model Analysis' for function 'test1': +; COREI7: Cost Model: Found an estimated cost of 1 for instruction: %2 = call <4 x float> @llvm.ceil.v4f32(<4 x float> %wide.load) + +} + +declare <4 x float> @llvm.ceil.v4f32(<4 x float>) nounwind readnone |