6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-08-05 13:26:55 +00:00
Code Issues Projects Releases Wiki Activity

SLP Vectorizer: Implement a simple CSE optimization for the gather sequences.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184660 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2013-06-23 06:15:46 +00:00
parent 53a0552b06
commit 6959f08f44
2 changed files with 130 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

85
test/Transforms/SLPVectorizer/X86/cse.ll Normal file
View File

@@ -0,0 +1,85 @@
; RUN: opt < %s -basicaa -slp-vectorizer -dce -S -mtriple=i386-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32-S128"
target triple = "i386-apple-macosx10.8.0"
;int test(double *G) {
; G[0] = 1+G[5]*4;
; G[1] = 6+G[6]*3;
; G[2] = 7+G[5]*4;
; G[3] = 8+G[6]*4;
;}
;CHECK: @test
;CHECK: insertelement <2 x double> undef
;CHECK-NEXT: insertelement <2 x double>
;CHECK-NEXT: fadd <2 x double>
;CHECK: store <2 x double>
;CHECK: insertelement <2 x double>
;CHECK-NEXT: fadd <2 x double>
;CHECK: store <2 x double>
;CHECK: ret i32
define i32 @test(double* nocapture %G) {
entry:
%arrayidx = getelementptr inbounds double* %G, i64 5
%0 = load double* %arrayidx, align 8
%mul = fmul double %0, 4.000000e+00
%add = fadd double %mul, 1.000000e+00
store double %add, double* %G, align 8
%arrayidx2 = getelementptr inbounds double* %G, i64 6
%1 = load double* %arrayidx2, align 8
%mul3 = fmul double %1, 3.000000e+00
%add4 = fadd double %mul3, 6.000000e+00
%arrayidx5 = getelementptr inbounds double* %G, i64 1
store double %add4, double* %arrayidx5, align 8
%add8 = fadd double %mul, 7.000000e+00
%arrayidx9 = getelementptr inbounds double* %G, i64 2
store double %add8, double* %arrayidx9, align 8
%mul11 = fmul double %1, 4.000000e+00
%add12 = fadd double %mul11, 8.000000e+00
%arrayidx13 = getelementptr inbounds double* %G, i64 3
store double %add12, double* %arrayidx13, align 8
ret i32 undef
}
;int foo(double *A, int n) {
; A[0] = A[0] * 7.9 * n + 6.0;
; A[1] = A[1] * 7.7 * n + 2.0;
; A[2] = A[2] * 7.6 * n + 3.0;
; A[3] = A[3] * 7.4 * n + 4.0;
;}
;CHECK: @foo
;CHECK: insertelement <2 x double>
;CHECK: insertelement <2 x double>
;CHECK-NOT: insertelement <2 x double>
;CHECK: ret
define i32 @foo(double* nocapture %A, i32 %n) {
entry:
%0 = load double* %A, align 8
%mul = fmul double %0, 7.900000e+00
%conv = sitofp i32 %n to double
%mul1 = fmul double %conv, %mul
%add = fadd double %mul1, 6.000000e+00
store double %add, double* %A, align 8
%arrayidx3 = getelementptr inbounds double* %A, i64 1
%1 = load double* %arrayidx3, align 8
%mul4 = fmul double %1, 7.700000e+00
%mul6 = fmul double %conv, %mul4
%add7 = fadd double %mul6, 2.000000e+00
store double %add7, double* %arrayidx3, align 8
%arrayidx9 = getelementptr inbounds double* %A, i64 2
%2 = load double* %arrayidx9, align 8
%mul10 = fmul double %2, 7.600000e+00
%mul12 = fmul double %conv, %mul10
%add13 = fadd double %mul12, 3.000000e+00
store double %add13, double* %arrayidx9, align 8
%arrayidx15 = getelementptr inbounds double* %A, i64 3
%3 = load double* %arrayidx15, align 8
%mul16 = fmul double %3, 7.400000e+00
%mul18 = fmul double %conv, %mul16
%add19 = fadd double %mul18, 4.000000e+00
store double %add19, double* %arrayidx15, align 8
ret i32 undef
}