1; RUN: llc < %s -march=ppc64 -mcpu=pwr7 | FileCheck %s
2target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64"
3target triple = "powerpc64-unknown-linux-gnu"
4
5define void @foo() nounwind readnone noinline {
6  ret void
7}
8
9define weak void @foo_weak() nounwind {
10  ret void
11}
12
13; Calls to local function does not require the TOC restore 'nop'
14define void @test_direct() nounwind readnone {
15; CHECK-LABEL: test_direct:
16  tail call void @foo() nounwind
17; CHECK: bl foo
18; CHECK-NOT: nop
19  ret void
20}
21
22; Calls to weak function requires a TOC restore 'nop' because they
23; may be overridden in a different module.
24define void @test_weak() nounwind readnone {
25; CHECK-LABEL: test_weak:
26  tail call void @foo_weak() nounwind
27; CHECK: bl foo
28; CHECK-NEXT: nop
29  ret void
30}
31
32; Indirect calls requires a full stub creation
33define void @test_indirect(void ()* nocapture %fp) nounwind {
34; CHECK-LABEL: test_indirect:
35  tail call void %fp() nounwind
36; CHECK: ld [[FP:[0-9]+]], 0(3)
37; CHECK: ld 11, 16(3)
38; CHECK: ld 2, 8(3)
39; CHECK-NEXT: mtctr [[FP]]
40; CHECK-NEXT: bctrl
41; CHECK-NEXT: ld 2, 40(1)
42  ret void
43}
44
45; Absolute values must use the regular indirect call sequence
46; The main purpose of this test is to ensure that BLA is not
47; used on 64-bit SVR4 (as e.g. on Darwin).
48define void @test_abs() nounwind {
49; CHECK-LABEL: test_abs:
50  tail call void inttoptr (i64 1024 to void ()*)() nounwind
51; CHECK: ld [[FP:[0-9]+]], 1024(0)
52; CHECK: ld 11, 1040(0)
53; CHECK: ld 2, 1032(0)
54; CHECK-NEXT: mtctr [[FP]]
55; CHECK-NEXT: bctrl
56; CHECK-NEXT: ld 2, 40(1)
57  ret void
58}
59
60declare double @sin(double) nounwind
61
62; External functions call should also have a 'nop'
63define double @test_external(double %x) nounwind {
64; CHECK-LABEL: test_external:
65  %call = tail call double @sin(double %x) nounwind
66; CHECK: bl sin
67; CHECK-NEXT: nop
68  ret double %call
69}
70
71; The 'ld 2, 40(1)' really must always come directly after the bctrl to make
72; the unwinding code in libgcc happy.
73@g = external global void ()*
74declare void @h(i64)
75define void @test_indir_toc_reload(i64 %x) {
76  %1 = load void ()*, void ()** @g
77  call void %1()
78  call void @h(i64 %x)
79  ret void
80
81; CHECK-LABEL: @test_indir_toc_reload
82; CHECK: bctrl
83; CHECK-NEXT: ld 2, 40(1)
84; CHECK: blr
85}
86
87