mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
aded4a78a5
Not sure if even larger interleaving factors are needed, but these are what i have seen being queried in the wild.
65 lines
2.4 KiB
LLVM
65 lines
2.4 KiB
LLVM
; RUN: opt -loop-vectorize -vectorizer-maximize-bandwidth -S -mattr=+avx2 --debug-only=loop-vectorize < %s 2>&1 | FileCheck %s
|
|
; REQUIRES: asserts
|
|
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
@A = global [1024 x i8] zeroinitializer, align 128
|
|
@B = global [1024 x i16] zeroinitializer, align 128
|
|
|
|
; CHECK: LV: Checking a loop in "test"
|
|
; CHECK: LV: Found an estimated cost of 1 for VF 1 For instruction: store i16 %v5, i16* %out5, align 2
|
|
; CHECK: LV: Found an estimated cost of 35 for VF 2 For instruction: store i16 %v5, i16* %out5, align 2
|
|
; CHECK: LV: Found an estimated cost of 66 for VF 4 For instruction: store i16 %v5, i16* %out5, align 2
|
|
; CHECK: LV: Found an estimated cost of 147 for VF 8 For instruction: store i16 %v5, i16* %out5, align 2
|
|
; CHECK: LV: Found an estimated cost of 342 for VF 16 For instruction: store i16 %v5, i16* %out5, align 2
|
|
; CHECK-NOT: LV: Found an estimated cost of {{[0-9]+}} for VF {{[0-9]+}} For instruction: store i16 %v5, i16* %out5, align 2
|
|
|
|
define void @test() {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body:
|
|
%iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
|
|
|
|
%iv.0 = add nuw nsw i64 %iv, 0
|
|
%iv.1 = add nuw nsw i64 %iv, 1
|
|
%iv.2 = add nuw nsw i64 %iv, 2
|
|
%iv.3 = add nuw nsw i64 %iv, 3
|
|
%iv.4 = add nuw nsw i64 %iv, 4
|
|
%iv.5 = add nuw nsw i64 %iv, 5
|
|
|
|
%in = getelementptr inbounds [1024 x i8], [1024 x i8]* @A, i64 0, i64 %iv.0
|
|
%v.narrow = load i8, i8* %in
|
|
|
|
%v = zext i8 %v.narrow to i16
|
|
|
|
%v0 = add i16 %v, 0
|
|
%v1 = add i16 %v, 1
|
|
%v2 = add i16 %v, 2
|
|
%v3 = add i16 %v, 3
|
|
%v4 = add i16 %v, 4
|
|
%v5 = add i16 %v, 5
|
|
|
|
%out0 = getelementptr inbounds [1024 x i16], [1024 x i16]* @B, i64 0, i64 %iv.0
|
|
%out1 = getelementptr inbounds [1024 x i16], [1024 x i16]* @B, i64 0, i64 %iv.1
|
|
%out2 = getelementptr inbounds [1024 x i16], [1024 x i16]* @B, i64 0, i64 %iv.2
|
|
%out3 = getelementptr inbounds [1024 x i16], [1024 x i16]* @B, i64 0, i64 %iv.3
|
|
%out4 = getelementptr inbounds [1024 x i16], [1024 x i16]* @B, i64 0, i64 %iv.4
|
|
%out5 = getelementptr inbounds [1024 x i16], [1024 x i16]* @B, i64 0, i64 %iv.5
|
|
|
|
store i16 %v0, i16* %out0
|
|
store i16 %v1, i16* %out1
|
|
store i16 %v2, i16* %out2
|
|
store i16 %v3, i16* %out3
|
|
store i16 %v4, i16* %out4
|
|
store i16 %v5, i16* %out5
|
|
|
|
%iv.next = add nuw nsw i64 %iv.0, 6
|
|
%cmp = icmp ult i64 %iv.next, 1024
|
|
br i1 %cmp, label %for.body, label %for.cond.cleanup
|
|
|
|
for.cond.cleanup:
|
|
ret void
|
|
}
|