| Reid Kleckner | 9c65821 | 2014-04-10 22:58:43 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -mtriple=thumb-linux-unknown-gnueabi -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-linux |
| 2 | ; RUN: llc < %s -mtriple=thumb-linux-androideabi -verify-machineinstrs | FileCheck %s -check-prefix=Thumb-android |
| 3 | ; RUN: llc < %s -mtriple=thumb-linux-unknown-gnueabi -filetype=obj |
| 4 | ; RUN: llc < %s -mtriple=thumb-linux-androideabi -filetype=obj |
| Oliver Stannard | b14c625 | 2014-04-02 16:10:33 +0000 | [diff] [blame] | 5 | |
| 6 | ; Just to prevent the alloca from being optimized away |
| 7 | declare void @dummy_use(i32*, i32) |
| 8 | |
| Reid Kleckner | 9c65821 | 2014-04-10 22:58:43 +0000 | [diff] [blame] | 9 | define i32 @test_basic(i32 %l) #0 { |
| Oliver Stannard | b14c625 | 2014-04-02 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 | |
| 15 | true: |
| 16 | ret i32 0 |
| 17 | |
| 18 | false: |
| 19 | %newlen = sub i32 %l, 1 |
| 20 | %retvalue = call i32 @test_basic(i32 %newlen) |
| 21 | ret i32 %retvalue |
| 22 | |
| 23 | ; Thumb-linux: test_basic: |
| 24 | |
| 25 | ; Thumb-linux: push {r4, r5} |
| 26 | ; Thumb-linux: mov r5, sp |
| 27 | ; Thumb-linux-NEXT: ldr r4, .LCPI0_0 |
| 28 | ; Thumb-linux-NEXT: ldr r4, [r4] |
| 29 | ; Thumb-linux-NEXT: cmp r4, r5 |
| 30 | ; Thumb-linux-NEXT: blo .LBB0_2 |
| 31 | |
| 32 | ; Thumb-linux: mov r4, #16 |
| 33 | ; Thumb-linux-NEXT: mov r5, #0 |
| 34 | ; Thumb-linux-NEXT: push {lr} |
| 35 | ; Thumb-linux-NEXT: bl __morestack |
| 36 | ; Thumb-linux-NEXT: pop {r4} |
| 37 | ; Thumb-linux-NEXT: mov lr, r4 |
| 38 | ; Thumb-linux-NEXT: pop {r4, r5} |
| 39 | ; Thumb-linux-NEXT: bx lr |
| 40 | |
| 41 | ; Thumb-linux: pop {r4, r5} |
| 42 | |
| 43 | ; Thumb-android: test_basic: |
| 44 | |
| 45 | ; Thumb-android: push {r4, r5} |
| 46 | ; Thumb-android: mov r5, sp |
| 47 | ; Thumb-android-NEXT: ldr r4, .LCPI0_0 |
| 48 | ; Thumb-android-NEXT: ldr r4, [r4] |
| 49 | ; Thumb-android-NEXT: cmp r4, r5 |
| 50 | ; Thumb-android-NEXT: blo .LBB0_2 |
| 51 | |
| 52 | ; Thumb-android: mov r4, #16 |
| 53 | ; Thumb-android-NEXT: mov r5, #0 |
| 54 | ; Thumb-android-NEXT: push {lr} |
| 55 | ; Thumb-android-NEXT: bl __morestack |
| 56 | ; Thumb-android-NEXT: pop {r4} |
| 57 | ; Thumb-android-NEXT: mov lr, r4 |
| 58 | ; Thumb-android-NEXT: pop {r4, r5} |
| 59 | ; Thumb-android-NEXT: bx lr |
| 60 | |
| 61 | ; Thumb-android: pop {r4, r5} |
| 62 | |
| 63 | } |
| Reid Kleckner | 9c65821 | 2014-04-10 22:58:43 +0000 | [diff] [blame] | 64 | |
| 65 | attributes #0 = { "split-stack" } |