| Evgeniy Stepanov | 8685daf | 2015-09-24 01:23:51 +0000 | [diff] [blame] | 1 | ; Test stack pointer restore after setjmp() with the function-call safestack ABI. |
| 2 | ; RUN: opt -safe-stack -S -mtriple=arm-linux-androideabi < %s -o - | FileCheck %s |
| 3 | |
| 4 | @env = global [64 x i32] zeroinitializer, align 4 |
| 5 | |
| 6 | define void @f(i32 %b) safestack { |
| 7 | entry: |
| 8 | ; CHECK: %[[SPA:.*]] = call i8** @__safestack_pointer_address() |
| Evgeniy Stepanov | 8685daf | 2015-09-24 01:23:51 +0000 | [diff] [blame] | 9 | ; CHECK: %[[USP:.*]] = load i8*, i8** %[[SPA]] |
| Anna Zaks | cad7994 | 2016-02-02 01:03:11 +0000 | [diff] [blame] | 10 | ; CHECK: %[[USDP:.*]] = alloca i8* |
| Evgeniy Stepanov | 8685daf | 2015-09-24 01:23:51 +0000 | [diff] [blame] | 11 | ; CHECK: store i8* %[[USP]], i8** %[[USDP]] |
| 12 | ; CHECK: call i32 @setjmp |
| 13 | |
| 14 | %call = call i32 @setjmp(i32* getelementptr inbounds ([64 x i32], [64 x i32]* @env, i32 0, i32 0)) returns_twice |
| 15 | |
| 16 | ; CHECK: %[[USP2:.*]] = load i8*, i8** %[[USDP]] |
| 17 | ; CHECK: store i8* %[[USP2]], i8** %[[SPA]] |
| 18 | |
| 19 | %tobool = icmp eq i32 %b, 0 |
| 20 | br i1 %tobool, label %if.end, label %if.then |
| 21 | |
| 22 | if.then: |
| 23 | %0 = alloca [42 x i8], align 1 |
| 24 | %.sub = getelementptr inbounds [42 x i8], [42 x i8]* %0, i32 0, i32 0 |
| 25 | call void @_Z7CapturePv(i8* %.sub) |
| 26 | br label %if.end |
| 27 | |
| 28 | if.end: |
| Anna Zaks | cad7994 | 2016-02-02 01:03:11 +0000 | [diff] [blame] | 29 | ; CHECK: store i8* %[[USP:.*]], i8** %[[SPA:.*]] |
| 30 | |
| Evgeniy Stepanov | 8685daf | 2015-09-24 01:23:51 +0000 | [diff] [blame] | 31 | ret void |
| 32 | } |
| 33 | |
| 34 | declare i32 @setjmp(i32*) returns_twice |
| 35 | |
| 36 | declare void @_Z7CapturePv(i8*) |