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
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=armv7-none-linux-gnueabi -pre-RA-sched=source | FileCheck %s
; Test that we correctly align elements when using va_arg
define i64 @test1(i32 %i, ...) nounwind optsize {
; CHECK-LABEL: test1:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: .pad #12
; CHECK-NEXT: sub sp, sp, #12
; CHECK-NEXT: .pad #4
; CHECK-NEXT: sub sp, sp, #4
; CHECK-NEXT: add r0, sp, #4
; CHECK-NEXT: stmib sp, {r1, r2, r3}
; CHECK-NEXT: add r0, r0, #7
; CHECK-NEXT: bic r1, r0, #7
; CHECK-NEXT: orr r0, r1, #4
; CHECK-NEXT: str r0, [sp]
; CHECK-NEXT: ldr r0, [r1]
; CHECK-NEXT: add r2, r1, #8
; CHECK-NEXT: str r2, [sp]
; CHECK-NEXT: ldr r1, [r1, #4]
; CHECK-NEXT: add sp, sp, #4
; CHECK-NEXT: add sp, sp, #12
; CHECK-NEXT: bx lr
entry:
%g = alloca i8*, align 4
%g1 = bitcast i8** %g to i8*
call void @llvm.va_start(i8* %g1)
%0 = va_arg i8** %g, i64
call void @llvm.va_end(i8* %g1)
ret i64 %0
}
define double @test2(i32 %a, i32* %b, ...) nounwind optsize {
; CHECK-LABEL: test2:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: .pad #8
; CHECK-NEXT: sub sp, sp, #8
; CHECK-NEXT: .pad #4
; CHECK-NEXT: sub sp, sp, #4
; CHECK-NEXT: add r0, sp, #4
; CHECK-NEXT: stmib sp, {r2, r3}
; CHECK-NEXT: add r0, r0, #11
; CHECK-NEXT: bic r0, r0, #3
; CHECK-NEXT: str r2, [r1]
; CHECK-NEXT: add r1, r0, #8
; CHECK-NEXT: str r1, [sp]
; CHECK-NEXT: vldr d16, [r0]
; CHECK-NEXT: vmov r0, r1, d16
; CHECK-NEXT: add sp, sp, #4
; CHECK-NEXT: add sp, sp, #8
; CHECK-NEXT: bx lr
entry:
%ap = alloca i8*, align 4 ; <i8**> [#uses=3]
%ap1 = bitcast i8** %ap to i8* ; <i8*> [#uses=2]
call void @llvm.va_start(i8* %ap1)
%0 = va_arg i8** %ap, i32 ; <i32> [#uses=0]
store i32 %0, i32* %b
%1 = va_arg i8** %ap, double ; <double> [#uses=1]
call void @llvm.va_end(i8* %ap1)
ret double %1
}
declare void @llvm.va_start(i8*) nounwind
declare void @llvm.va_end(i8*) nounwind
|
