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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
; RUN: llc -fast-isel -O0 -mcpu=generic -mtriple=i386-apple-darwin10 -relocation-model=pic < %s | FileCheck %s
; This should use flds to set the return value.
; CHECK-LABEL: test0:
; CHECK: flds
; CHECK: retl
@G = external global float
define float @test0() nounwind {
%t = load float* @G
ret float %t
}
; This should pop 4 bytes on return.
; CHECK-LABEL: test1:
; CHECK: retl $4
define void @test1({i32, i32, i32, i32}* sret %p) nounwind {
store {i32, i32, i32, i32} zeroinitializer, {i32, i32, i32, i32}* %p
ret void
}
; Properly initialize the pic base.
; CHECK-LABEL: test2:
; CHECK-NOT: HHH
; CHECK: call{{.*}}L2$pb
; CHECK-NEXT: L2$pb:
; CHECK-NEXT: pop
; CHECK: HHH
; CHECK: retl
@HHH = external global i32
define i32 @test2() nounwind {
%t = load i32* @HHH
ret i32 %t
}
; Check that we fast-isel sret, and handle the callee-pops behavior correctly.
%struct.a = type { i64, i64, i64 }
define void @test3() nounwind ssp {
entry:
%tmp = alloca %struct.a, align 8
call void @test3sret(%struct.a* sret %tmp)
ret void
; CHECK-LABEL: test3:
; CHECK: subl $44
; CHECK: leal 16(%esp)
; CHECK: calll _test3sret
; CHECK: addl $40
}
declare void @test3sret(%struct.a* sret)
; Check that fast-isel sret works with fastcc (and does not callee-pop)
define void @test4() nounwind ssp {
entry:
%tmp = alloca %struct.a, align 8
call fastcc void @test4fastccsret(%struct.a* sret %tmp)
ret void
; CHECK-LABEL: test4:
; CHECK: subl $28
; CHECK: leal (%esp), %ecx
; CHECK: calll _test4fastccsret
; CHECK: addl $28
}
declare fastcc void @test4fastccsret(%struct.a* sret)
; Check that fast-isel cleans up when it fails to lower a call instruction.
define void @test5() {
entry:
%call = call i32 @test5dllimport(i32 42)
ret void
; CHECK-LABEL: test5:
; Local value area is still there:
; CHECK: movl $42, {{%[a-z]+}}
; Fast-ISel's arg push is not here:
; CHECK-NOT: movl $42, (%esp)
; SDag-ISel's arg push:
; CHECK: movl %esp, [[REGISTER:%[a-z]+]]
; CHECK: movl $42, ([[REGISTER]])
; CHECK: movl __imp__test5dllimport
}
declare dllimport i32 @test5dllimport(i32)
|
