1; RUN: llc -march=mipsel -mcpu=mips32 < %s | FileCheck %s -check-prefix=CHECK-MIPS32
2; RUN: llc -march=mips64el -mcpu=mips64 < %s | \
3; RUN:      FileCheck %s -check-prefix=CHECK-MIPS64
4; RUN: llc -march=mipsel -mcpu=mips64 -target-abi n32 < %s | \
5; RUN:      FileCheck %s -check-prefix=CHECK-MIPSN32
6
7; Test that the expansion of ADJCALLSTACKDOWN and ADJCALLSTACKUP generate
8; (d)subu and (d)addu rather than just (d)addu. The (d)subu sequences are
9; generally shorter as the constant that has to be materialized is smaller.
10
11define i32 @main() {
12entry:
13  %z = alloca [1048576 x i8], align 1
14  %arraydecay = getelementptr inbounds [1048576 x i8], [1048576 x i8]* %z, i32 0, i32 0
15  %call = call i32 @foo(i8* %arraydecay)
16  ret i32 0
17; CHECK-LABEL: main
18
19; CHECK-MIPS32: lui   $[[R0:[0-9]+]], 16
20; CHECK-MIPS32: addiu $[[R0]], $[[R0]], 24
21; CHECK-MIPS32: subu  $sp, $sp, $[[R0]]
22
23; CHECK-MIPS32: lui   $[[R1:[0-9]+]], 16
24; CHECK-MIPS32: addiu $[[R1]], $[[R1]], 24
25; CHECK-MIPS32: addu  $sp, $sp, $[[R1]]
26
27; CHECK-MIPS64: lui     $[[R0:[0-9]+]], 1
28; CHECK-MIPS64: daddiu  $[[R0]], $[[R0]], 32
29; CHECK-MIPS64: dsubu   $sp, $sp, $[[R0]]
30
31; FIXME:
32; These are here to match other lui's used in address computations. We need to
33; investigate why address computations are not CSE'd. Or implement it.
34
35; CHECK-MIPS64: lui
36; CHECK-MIPS64: lui
37; CHECK-MIPS64: lui
38; CHECK-MIPS64: lui
39
40; CHECK-MIPS64: lui     $[[R1:[0-9]+]], 16
41; CHECK-MIPS64: daddiu  $[[R1]], $[[R1]], 32
42; CHECK-MIPS64: daddu   $sp, $sp, $[[R1]]
43
44; CHECK-MIPSN32: lui   $[[R0:[0-9]+]], 16
45; CHECK-MIPSN32: addiu $[[R0]], $[[R0]], 16
46; CHECK-MIPSN32: subu  $sp, $sp, $[[R0]]
47
48; CHECK-MIPSN32: lui   $[[R1:[0-9]+]], 16
49; CHECK-MIPSN32: addiu $[[R1]], $[[R1]], 16
50; CHECK-MIPSN32: addu  $sp, $sp, $[[R1]]
51
52}
53
54declare i32 @foo(i8*)
55