1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
; RUN: opt -disable-verify -debug-pass-manager -passes='default<O1>' -force-vector-width=4 -S %s 2>&1 | FileCheck %s --check-prefixes=O1
; RUN: opt -disable-verify -debug-pass-manager -passes='default<O2>' -force-vector-width=4 -S %s 2>&1 | FileCheck %s --check-prefixes=O2
; RUN: opt -disable-verify -debug-pass-manager -passes='default<O2>' -force-vector-width=4 -extra-vectorizer-passes -S %s 2>&1 | FileCheck %s --check-prefixes=O2_EXTRA
; When the loop doesn't get vectorized, no extra vector passes should run.
; RUN: opt -disable-verify -debug-pass-manager -passes='default<O2>' -force-vector-width=0 -extra-vectorizer-passes -S %s 2>&1 | FileCheck %s --check-prefixes=O2
; REQUIRES: asserts
; The loop vectorizer still runs at both -O1/-O2 even with the
; debug flag, but it only works on loops explicitly annotated
; with pragmas.
; SLP does not run at -O1. Loop vectorization runs, but it only
; works on loops explicitly annotated with pragmas.
; O1-LABEL: Running pass: LoopVectorizePass
; O1-NOT: Running pass: SLPVectorizerPass
; O1: Running pass: VectorCombinePass
; Everything runs at -O2.
; O2-LABEL: Running pass: LoopVectorizePass
; O2-NOT: Running pass: EarlyCSEPass
; O2-NOT: Running pass: LICMPass
; O2: Running pass: SLPVectorizerPass
; O2: Running pass: VectorCombinePass
; Optionally run cleanup passes.
; O2_EXTRA-LABEL: Running pass: LoopVectorizePass
; O2_EXTRA: Running pass: EarlyCSEPass
; O2_EXTRA: Running pass: CorrelatedValuePropagationPass
; O2_EXTRA: Running pass: InstCombinePass
; O2_EXTRA: Running pass: LICMPass
; O2_EXTRA: Running pass: SimpleLoopUnswitchPass
; O2_EXTRA: Running pass: SimplifyCFGPass
; O2_EXTRA: Running pass: InstCombinePass
; O2_EXTRA: Running pass: SLPVectorizerPass
; O2_EXTRA: Running pass: EarlyCSEPass
; O2_EXTRA: Running pass: VectorCombinePass
define i64 @f(i1 %cond, ptr %src, ptr %dst) {
entry:
br label %loop
loop:
%i = phi i64 [ 0, %entry ], [ %inc, %loop ]
%src.i = getelementptr i32, ptr %src, i64 %i
%src.v = load i32, ptr %src.i
%add = add i32 %src.v, 10
%dst.i = getelementptr i32, ptr %dst, i64 %i
store i32 %add, ptr %dst.i
%inc = add nuw nsw i64 %i, 1
%ec = icmp ne i64 %inc, 1000
br i1 %ec, label %loop, label %exit
exit:
ret i64 %i
}
|
