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
| ; RUN: llc -verify-machineinstrs -mcpu=ppc64 < %s | FileCheck %s
target datalayout = "E-m:e-i64:64-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
; Function Attrs: noreturn nounwind
define signext i32 @_Z1fRPc(i8** nocapture dereferenceable(8) %p) #0 {
entry:
%.pre = load i8*, i8** %p, align 8
br label %loop
loop: ; preds = %loop.backedge, %entry
%0 = phi i8* [ %.pre, %entry ], [ %.be, %loop.backedge ]
%1 = load i8, i8* %0, align 1
%tobool = icmp eq i8 %1, 0
%incdec.ptr = getelementptr inbounds i8, i8* %0, i64 1
store i8* %incdec.ptr, i8** %p, align 8
%2 = load i8, i8* %incdec.ptr, align 1
%tobool2 = icmp ne i8 %2, 0
%or.cond = and i1 %tobool, %tobool2
br i1 %or.cond, label %if.then3, label %loop.backedge
if.then3: ; preds = %loop
%incdec.ptr4 = getelementptr inbounds i8, i8* %0, i64 2
store i8* %incdec.ptr4, i8** %p, align 8
br label %loop.backedge
loop.backedge: ; preds = %if.then3, %loop
%.be = phi i8* [ %incdec.ptr4, %if.then3 ], [ %incdec.ptr, %loop ]
br label %loop
; CHECK-LABEL: @_Z1fRPc
; CHECK-NOT: rlwinm {{[0-9]+}}, {{[0-9]+}}, 0, 24, 31
; CHECK-NOT: clrlwi {{[0-9]+}}, {{[0-9]+}}, 24
}
attributes #0 = { noreturn nounwind }
|