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gerrit-public.fairphone.software / toolchain / llvm-project / b4adf55e0f050a494cc0c9a98b0bd46e8e30070a / . / llvm / test / CodeGen / ARM / segmented-stacks-dynamic.ll
blob: 86f8ff8dd90b2b52a18c9b744137b955d3a375ac [file] [log] [blame]
Reid Kleckner9c658212014-04-10 22:58:43 +0000[diff] [blame]1; RUN: llc < %s -mtriple=arm-linux-androideabi -verify-machineinstrs | FileCheck %s -check-prefix=ARM-android
2; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=ARM-linux
3; RUN: llc < %s -mtriple=arm-linux-androideabi -filetype=obj
4; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -filetype=obj
Oliver Stannardb14c6252014-04-02 16:10:33 +0000[diff] [blame]5
6; Just to prevent the alloca from being optimized away
7declare void @dummy_use(i32*, i32)
8
Reid Kleckner9c658212014-04-10 22:58:43 +0000[diff] [blame]9define i32 @test_basic(i32 %l) #0 {
Oliver Stannardb14c6252014-04-02 16:10:33 +0000[diff] [blame]10 %mem = alloca i32, i32 %l
11 call void @dummy_use (i32* %mem, i32 %l)
12 %terminate = icmp eq i32 %l, 0
13 br i1 %terminate, label %true, label %false
14
15true:
16 ret i32 0
17
18false:
19 %newlen = sub i32 %l, 1
20 %retvalue = call i32 @test_basic(i32 %newlen)
21 ret i32 %retvalue
22
23; ARM-linux: test_basic:
24
25; ARM-linux: push {r4, r5}
26; ARM-linux-NEXT: mrc p15, #0, r4, c13, c0, #3
27; ARM-linux-NEXT: mov r5, sp
28; ARM-linux-NEXT: ldr r4, [r4, #4]
29; ARM-linux-NEXT: cmp r4, r5
30; ARM-linux-NEXT: blo .LBB0_2
31
Joerg Sonnenberger818e7252014-05-06 20:43:01 +0000[diff] [blame]32; ARM-linux: mov r4, #16
Oliver Stannardb14c6252014-04-02 16:10:33 +0000[diff] [blame]33; ARM-linux-NEXT: mov r5, #0
34; ARM-linux-NEXT: stmdb sp!, {lr}
35; ARM-linux-NEXT: bl __morestack
36; ARM-linux-NEXT: ldm sp!, {lr}
37; ARM-linux-NEXT: pop {r4, r5}
38; ARM-linux-NEXT: bx lr
39
40; ARM-linux: pop {r4, r5}
41
42
43; ARM-android: test_basic:
44
45; ARM-android: push {r4, r5}
46; ARM-android-NEXT: mrc p15, #0, r4, c13, c0, #3
47; ARM-android-NEXT: mov r5, sp
48; ARM-android-NEXT: ldr r4, [r4, #252]
49; ARM-android-NEXT: cmp r4, r5
50; ARM-android-NEXT: blo .LBB0_2
51
Joerg Sonnenberger818e7252014-05-06 20:43:01 +0000[diff] [blame]52; ARM-android: mov r4, #16
Oliver Stannardb14c6252014-04-02 16:10:33 +0000[diff] [blame]53; ARM-android-NEXT: mov r5, #0
54; ARM-android-NEXT: stmdb sp!, {lr}
55; ARM-android-NEXT: bl __morestack
56; ARM-android-NEXT: ldm sp!, {lr}
57; ARM-android-NEXT: pop {r4, r5}
58; ARM-android-NEXT: bx lr
59
60; ARM-android: pop {r4, r5}
61
62}
Reid Kleckner9c658212014-04-10 22:58:43 +0000[diff] [blame]63
64attributes #0 = { "split-stack" }