1 ; RUN: llc < %s -mtriple=thumbv6-apple-darwin | FileCheck %s
2 ; RUN: llc < %s -mtriple=thumbv6-apple-darwin -regalloc=basic | FileCheck %s
4 @__bar = external hidden global i8*
5 @__baz = external hidden global i8*
12 %size = alloca i32, align 4
13 %0 = load i8** @__bar, align 4
14 %1 = icmp eq i8* %0, null
15 br i1 %1, label %bb1, label %bb3
19 store i32 1026, i32* %size, align 4
20 %2 = alloca [1026 x i8], align 1
21 ; CHECK: mov [[R0:r[0-9]+]], sp
22 ; CHECK: adds {{r[0-9]+}}, [[R0]], {{r[0-9]+}}
23 %3 = getelementptr inbounds [1026 x i8]* %2, i32 0, i32 0
24 %4 = call i32 @_called_func(i8* %3, i32* %size) nounwind
25 %5 = icmp eq i32 %4, 0
26 br i1 %5, label %bb2, label %bb3
29 %6 = call i8* @strdup(i8* %3) nounwind
30 store i8* %6, i8** @__baz, align 4
34 %.0 = phi i8* [ %0, %entry ], [ %6, %bb2 ], [ %3, %bb1 ]
36 ; CHECK-NEXT: mov sp, r4
37 ; CHECK-NEXT: pop {r4, r5, r6, r7, pc}
41 declare noalias i8* @strdup(i8* nocapture) nounwind
42 declare i32 @_called_func(i8*, i32*) nounwind
44 ; Variable ending up at unaligned offset from sp (i.e. not a multiple of 4)
45 define void @test_local_var_addr() {
46 ; CHECK-LABEL: test_local_var_addr:
52 ; CHECK: adds r0, r0, #{{[0-9]+}}
53 ; CHECK: blx _take_ptr
54 call void @take_ptr(i8* %addr1)
57 ; CHECK: adds r0, r0, #{{[0-9]+}}
58 ; CHECK: blx _take_ptr
59 call void @take_ptr(i8* %addr2)
64 ; Simple variable ending up *at* sp.
65 define void @test_simple_var() {
66 ; CHECK-LABEL: test_simple_var:
69 %addr8 = bitcast i32* %addr32 to i8*
73 ; CHECK: blx _take_ptr
74 call void @take_ptr(i8* %addr8)
78 ; Simple variable ending up at aligned offset from sp.
79 define void @test_local_var_addr_aligned() {
80 ; CHECK-LABEL: test_local_var_addr_aligned:
82 %addr1.32 = alloca i32
83 %addr1 = bitcast i32* %addr1.32 to i8*
84 %addr2.32 = alloca i32
85 %addr2 = bitcast i32* %addr2.32 to i8*
87 ; CHECK: add r0, sp, #{{[0-9]+}}
88 ; CHECK: blx _take_ptr
89 call void @take_ptr(i8* %addr1)
93 ; CHECK: blx _take_ptr
94 call void @take_ptr(i8* %addr2)
99 ; Simple variable ending up at aligned offset from sp.
100 define void @test_local_var_big_offset() {
101 ; CHECK-LABEL: test_local_var_big_offset:
102 %addr1.32 = alloca i32, i32 257
103 %addr1 = bitcast i32* %addr1.32 to i8*
104 %addr2.32 = alloca i32, i32 257
106 ; CHECK: add [[RTMP:r[0-9]+]], sp, #1020
107 ; CHECL: add r0, [[RTMP]], #8
108 ; CHECK: blx _take_ptr
109 call void @take_ptr(i8* %addr1)
114 declare void @take_ptr(i8*)