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
|
; RUN: llc -asm-verbose=false < %s | FileCheck %s
; PR26063
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "armv7--linux-gnueabihf"
; CHECK: .LBB0_1:
; CHECK-NEXT: bl f{{$}}
; CHECK-NEXT: ldrb r[[T0:[0-9]+]], [r{{[0-9]+}}, #1]!{{$}}
; CHECK-NEXT: cmp r{{[0-9]+}}, #1{{$}}
; CHECK-NEXT: cmpne r[[T0]], #0{{$}}
; CHECK-NEXT: bne .LBB0_1{{$}}
define ptr @h(ptr readonly %a, i32 %b, i32 %c) {
entry:
%0 = load i8, ptr %a, align 1
%tobool4 = icmp ne i8 %0, 0
%cmp5 = icmp ne i32 %b, 1
%1 = and i1 %cmp5, %tobool4
br i1 %1, label %while.body.preheader, label %while.end
while.body.preheader: ; preds = %entry
br label %while.body
while.body: ; preds = %while.body.preheader, %while.body
%a.addr.06 = phi ptr [ %incdec.ptr, %while.body ], [ %a, %while.body.preheader ]
%call = tail call i32 @f()
%incdec.ptr = getelementptr inbounds i8, ptr %a.addr.06, i32 1
%2 = load i8, ptr %incdec.ptr, align 1
%tobool = icmp ne i8 %2, 0
%cmp = icmp ne i32 %call, 1
%3 = and i1 %cmp, %tobool
br i1 %3, label %while.body, label %while.end.loopexit
while.end.loopexit: ; preds = %while.body
%incdec.ptr.lcssa = phi ptr [ %incdec.ptr, %while.body ]
br label %while.end
while.end: ; preds = %while.end.loopexit, %entry
%a.addr.0.lcssa = phi ptr [ %a, %entry ], [ %incdec.ptr.lcssa, %while.end.loopexit ]
ret ptr %a.addr.0.lcssa
}
declare i32 @f(...)
|
