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
|
; RUN: llc -verify-machineinstrs < %s -print-lsr-output 2>&1 | FileCheck %s
; The icmp is a post-inc use, and the increment is in %bb11, but the
; scevgep needs to be inserted in %bb so that it is dominated by %t.
; CHECK: %t = load i8*, i8** %inp
; CHECK: %scevgep = getelementptr i8, i8* %t, i32 %lsr.iv.next
; CHECK: %c1 = icmp ult i8* %scevgep, %inp2
target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f128:64:128-n32"
target triple = "powerpc-unknown-linux-gnu"
define void @foo(i8** %inp, i8* %inp2) nounwind {
entry:
br label %bb11
bb11:
%i = phi i32 [ 0, %entry ], [ %i.next, %bb ] ; <i32> [#uses=3]
%ii = shl i32 %i, 2 ; <i32> [#uses=1]
%c0 = icmp eq i32 %i, 0 ; <i1> [#uses=1]
br i1 %c0, label %bb13, label %bb
bb:
%t = load i8*, i8** %inp, align 16 ; <i8*> [#uses=1]
%p = getelementptr i8, i8* %t, i32 %ii ; <i8*> [#uses=1]
%c1 = icmp ult i8* %p, %inp2 ; <i1> [#uses=1]
%i.next = add i32 %i, 1 ; <i32> [#uses=1]
br i1 %c1, label %bb11, label %bb13
bb13:
unreachable
}
|
