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SLPVectorize: Put horizontal reductions feeding a store under separate flag

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Put them under a separate flag for experimentation. They are more likely to
interfere with loop vectorization which happens later in the pass pipeline.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191371 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Arnold Schwaighofer
2013-09-25 14:02:32 +00:00
parent 259a6006e8
commit 9660ebb398
2 changed files with 28 additions and 21 deletions
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18
test/Transforms/SLPVectorizer/X86/horizontal.ll
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@ -1,4 +1,4 @@
; RUN: opt -slp-vectorizer -slp-vectorize-hor -S < %s -mtriple=x86_64-apple-macosx -mcpu=corei7-avx | FileCheck %s
; RUN: opt -slp-vectorizer -slp-vectorize-hor -S < %s -mtriple=x86_64-apple-macosx -mcpu=corei7-avx | FileCheck %s --check-prefix=NOSTORE
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"
@ -15,9 +15,9 @@ target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3
; return sum;
; }
; CHECK-LABEL: add_red
; CHECK: fmul <4 x float>
; CHECK: shufflevector <4 x float>
; NOSTORE-LABEL: add_red
; NOSTORE: fmul <4 x float>
; NOSTORE: shufflevector <4 x float>
define i32 @add_red(float* %A, i32 %n) {
entry:
@ -369,6 +369,8 @@ for.end:
}
; RUN: opt -slp-vectorizer -slp-vectorize-hor -slp-vectorize-hor-store -S < %s -mtriple=x86_64-apple-macosx -mcpu=corei7-avx | FileCheck %s --check-prefix=STORE
; void foo(double * restrict A, double * restrict B, double * restrict C,
; int n) {
; for (intptr_t i=0; i < n; ++i) {
@ -376,10 +378,10 @@ for.end:
; }
; }
; CHECK-LABEL: store_red_double
; CHECK: fmul <2 x double>
; CHECK: extractelement <2 x double>
; CHECK: extractelement <2 x double>
; STORE-LABEL: store_red_double
; STORE: fmul <2 x double>
; STORE: extractelement <2 x double>
; STORE: extractelement <2 x double>
define void @store_red_double(double* noalias %A, double* noalias %B, double* noalias %C, i32 %n) {
entry: