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
|
; RUN: opt -S -indvars -loop-unswitch < %s | FileCheck %s
; RUN: opt -S -indvars -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s
target triple = "x86_64-unknown-linux-gnu"
define void @test_01() {
; Make sure we don't fail by SCEV's assertion due to incorrect invalidation.
; CHECK-LABEL: @test_01
entry:
br label %loop
loop: ; preds = %backedge, %entry
%p_50.addr.0 = phi i16 [ undef, %entry ], [ %add2699, %backedge ]
%idxprom2690 = sext i16 %p_50.addr.0 to i32
%arrayidx2691 = getelementptr inbounds [5 x i32], [5 x i32]* undef, i32 0, i32 %idxprom2690
%0 = load i32, i32* %arrayidx2691, align 1
%tobool2692 = icmp ne i32 %0, 0
br label %inner_loop
inner_loop: ; preds = %inner_backedge, %loop
br i1 %tobool2692, label %backedge, label %inner_backedge
inner_backedge: ; preds = %inner_loop
br label %inner_loop
backedge: ; preds = %inner_loop
%add2699 = add nsw i16 %p_50.addr.0, 1
br i1 false, label %loop, label %exit
exit: ; preds = %backedge
unreachable
}
|
