Files
clang-p2996/llvm/test/Transforms/SLPVectorizer/AArch64/commute.ll
Silviu Baranga b322aa6f53 [CostModel][AArch64] Increase cost of vector insert element and add missing cast costs
Summary:
Increase the estimated costs for insert/extract element operations on
AArch64. This is motivated by results from benchmarking interleaved
accesses.

Add missing costs for zext/sext/trunc instructions and some integer to
floating point conversions. These costs were previously calculated
by scalarizing these operation and were affected by the cost increase of
the insert/extract element operations.

Reviewers: rengolin

Subscribers: mcrosier, aemerson, rengolin, llvm-commits

Differential Revision: http://reviews.llvm.org/D11939

llvm-svn: 245226
2015-08-17 16:05:09 +00:00

76 lines
2.9 KiB
LLVM

; RUN: opt -S -slp-vectorizer %s -slp-threshold=-10 | FileCheck %s
target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
target triple = "aarch64--linux-gnu"
%structA = type { [2 x float] }
define void @test1(%structA* nocapture readonly %J, i32 %xmin, i32 %ymin) {
; CHECK-LABEL: test1
; CHECK: %arrayidx4 = getelementptr inbounds %structA, %structA* %J, i64 0, i32 0, i64 0
; CHECK: %arrayidx9 = getelementptr inbounds %structA, %structA* %J, i64 0, i32 0, i64 1
; CHECK: %3 = bitcast float* %arrayidx4 to <2 x float>*
; CHECK: %4 = load <2 x float>, <2 x float>* %3, align 4
; CHECK: %5 = fsub fast <2 x float> %2, %4
; CHECK: %6 = fmul fast <2 x float> %5, %5
; CHECK: %7 = extractelement <2 x float> %6, i32 0
; CHECK: %8 = extractelement <2 x float> %6, i32 1
; CHECK: %add = fadd fast float %7, %8
; CHECK: %cmp = fcmp oeq float %add, 0.000000e+00
entry:
br label %for.body3.lr.ph
for.body3.lr.ph:
%conv5 = sitofp i32 %ymin to float
%conv = sitofp i32 %xmin to float
%arrayidx4 = getelementptr inbounds %structA, %structA* %J, i64 0, i32 0, i64 0
%0 = load float, float* %arrayidx4, align 4
%sub = fsub fast float %conv, %0
%arrayidx9 = getelementptr inbounds %structA, %structA* %J, i64 0, i32 0, i64 1
%1 = load float, float* %arrayidx9, align 4
%sub10 = fsub fast float %conv5, %1
%mul11 = fmul fast float %sub, %sub
%mul12 = fmul fast float %sub10, %sub10
%add = fadd fast float %mul11, %mul12
%cmp = fcmp oeq float %add, 0.000000e+00
br i1 %cmp, label %for.body3.lr.ph, label %for.end27
for.end27:
ret void
}
define void @test2(%structA* nocapture readonly %J, i32 %xmin, i32 %ymin) {
; CHECK-LABEL: test2
; CHECK: %arrayidx4 = getelementptr inbounds %structA, %structA* %J, i64 0, i32 0, i64 0
; CHECK: %arrayidx9 = getelementptr inbounds %structA, %structA* %J, i64 0, i32 0, i64 1
; CHECK: %3 = bitcast float* %arrayidx4 to <2 x float>*
; CHECK: %4 = load <2 x float>, <2 x float>* %3, align 4
; CHECK: %5 = fsub fast <2 x float> %2, %4
; CHECK: %6 = fmul fast <2 x float> %5, %5
; CHECK: %7 = extractelement <2 x float> %6, i32 0
; CHECK: %8 = extractelement <2 x float> %6, i32 1
; CHECK: %add = fadd fast float %8, %7
; CHECK: %cmp = fcmp oeq float %add, 0.000000e+00
entry:
br label %for.body3.lr.ph
for.body3.lr.ph:
%conv5 = sitofp i32 %ymin to float
%conv = sitofp i32 %xmin to float
%arrayidx4 = getelementptr inbounds %structA, %structA* %J, i64 0, i32 0, i64 0
%0 = load float, float* %arrayidx4, align 4
%sub = fsub fast float %conv, %0
%arrayidx9 = getelementptr inbounds %structA, %structA* %J, i64 0, i32 0, i64 1
%1 = load float, float* %arrayidx9, align 4
%sub10 = fsub fast float %conv5, %1
%mul11 = fmul fast float %sub, %sub
%mul12 = fmul fast float %sub10, %sub10
%add = fadd fast float %mul12, %mul11 ;;;<---- Operands commuted!!
%cmp = fcmp oeq float %add, 0.000000e+00
br i1 %cmp, label %for.body3.lr.ph, label %for.end27
for.end27:
ret void
}