blob: c4019c78d69efd1cffa8ea28c9a83b177dbcee78 [file] [log] [blame]
Akira Hatanaka28e02ec2012-11-07 19:10:58 +00001; RUN: llc -march=mipsel -mcpu=mips32 < %s | FileCheck %s
Daniel Sanders1d3ae272014-04-14 16:00:28 +00002; RUN: llc -march=mips64el -mcpu=mips4 < %s | \
3; RUN: FileCheck %s -check-prefix=CHECK-MIPS64
Akira Hatanaka28e02ec2012-11-07 19:10:58 +00004; RUN: llc -march=mips64el -mcpu=mips64 < %s | \
5; RUN: FileCheck %s -check-prefix=CHECK-MIPS64
6
7declare i8* @llvm.eh.dwarf.cfa(i32) nounwind
8declare i8* @llvm.frameaddress(i32) nounwind readnone
9
10define i8* @f1() nounwind {
11entry:
12 %x = alloca [32 x i8], align 1
13 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0)
14 ret i8* %0
15
Simon Dardis878c0b12016-06-14 13:39:43 +000016; CHECK-LABEL: f1:
17
Akira Hatanaka28e02ec2012-11-07 19:10:58 +000018; CHECK: addiu $sp, $sp, -32
19; CHECK: addiu $2, $sp, 32
20}
21
22
23define i8* @f2() nounwind {
24entry:
25 %x = alloca [65536 x i8], align 1
26 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0)
27 ret i8* %0
28
Simon Dardis878c0b12016-06-14 13:39:43 +000029; CHECK-LABEL: f2:
30
Akira Hatanaka28e02ec2012-11-07 19:10:58 +000031; check stack size (65536 + 8)
Simon Dardis878c0b12016-06-14 13:39:43 +000032; CHECK: lui $[[R0:[a-z0-9]+]], 1
33; CHECK: addiu $[[R0]], $[[R0]], 8
34; CHECK: subu $sp, $sp, $[[R0]]
Akira Hatanaka28e02ec2012-11-07 19:10:58 +000035
36; check return value ($sp + stack size)
37; CHECK: lui $[[R1:[a-z0-9]+]], 1
38; CHECK: addu $[[R1]], $sp, $[[R1]]
39; CHECK: addiu $2, $[[R1]], 8
40}
41
42
43define i32 @f3() nounwind {
44entry:
45 %x = alloca [32 x i8], align 1
46 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0)
47 %1 = ptrtoint i8* %0 to i32
48 %2 = call i8* @llvm.frameaddress(i32 0)
49 %3 = ptrtoint i8* %2 to i32
50 %add = add i32 %1, %3
51 ret i32 %add
52
Simon Dardis878c0b12016-06-14 13:39:43 +000053; CHECK-LABEL: f3:
54
Akira Hatanaka28e02ec2012-11-07 19:10:58 +000055; CHECK: addiu $sp, $sp, -40
56
57; check return value ($fp + stack size + $fp)
58; CHECK: addiu $[[R0:[a-z0-9]+]], $fp, 40
59; CHECK: addu $2, $[[R0]], $fp
60}
61
62
63define i8* @f4() nounwind {
64entry:
65 %x = alloca [32 x i8], align 1
66 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0)
67 ret i8* %0
68
Simon Dardis878c0b12016-06-14 13:39:43 +000069; CHECK-LABEL: f4:
70
Akira Hatanaka28e02ec2012-11-07 19:10:58 +000071; CHECK-MIPS64: daddiu $sp, $sp, -32
72; CHECK-MIPS64: daddiu $2, $sp, 32
73}