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
| ; RUN: opt -basicaa -loop-distribute -enable-loop-distribute -verify-loop-info -verify-dom-info -S \
; RUN: < %s | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
define void @fn1(i64 %a, i64* %b) {
entry:
br label %for.body
for.body:
%add75.epil = phi i64 [ %add7.epil, %for.body ], [ %a, %entry ]
%add1.epil = add nsw i64 %add75.epil, 268435457
%arrayidx.epil = getelementptr inbounds i64, i64* %b, i64 %add1.epil
%load = load i64, i64* %arrayidx.epil, align 8
%add5.epil = add nsw i64 %add75.epil, 805306369
%arrayidx6.epil = getelementptr inbounds i64, i64* %b, i64 %add5.epil
store i64 %load, i64* %arrayidx6.epil, align 8
%add7.epil = add nsw i64 %add75.epil, 2
%epil.iter.cmp = icmp eq i64 %add7.epil, 0
br i1 %epil.iter.cmp, label %for.end, label %for.body
; CHECK: %[[phi:.*]] = phi i64
; CHECK: %[[add1:.*]] = add nsw i64 %[[phi]], 268435457
; CHECK: %[[gep1:.*]] = getelementptr inbounds i64, i64* %b, i64 %[[add1]]
; CHECK: %[[load:.*]] = load i64, i64* %[[gep1]], align 8
; CHECK: %[[add2:.*]] = add nsw i64 %[[phi]], 805306369
; CHECK: %[[gep2:.*]] = getelementptr inbounds i64, i64* %b, i64 %[[add2]]
; CHECK: store i64 %[[load]], i64* %[[gep2]], align 8
; CHECK: %[[incr:.*]] = add nsw i64 %[[phi]], 2
; CHECK: %[[cmp:.*]] = icmp eq i64 %[[incr]], 0
; CHECK: br i1 %[[cmp]]
for.end:
ret void
}
|