xref: /aosp_15_r20/external/llvm/test/Transforms/SafeStack/escape-phi-call.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Worker@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Worker; Addr-of in phi instruction
7*9880d681SAndroid Build Coastguard Worker; Requires protector.
8*9880d681SAndroid Build Coastguard Workerdefine void @foo() nounwind uwtable safestack {
9*9880d681SAndroid Build Coastguard Workerentry:
10*9880d681SAndroid Build Coastguard Worker  ; CHECK: __safestack_unsafe_stack_ptr
11*9880d681SAndroid Build Coastguard Worker  %x = alloca double, align 8
12*9880d681SAndroid Build Coastguard Worker  %call = call double @testi_aux() nounwind
13*9880d681SAndroid Build Coastguard Worker  store double %call, double* %x, align 8
14*9880d681SAndroid Build Coastguard Worker  %cmp = fcmp ogt double %call, 3.140000e+00
15*9880d681SAndroid Build Coastguard Worker  br i1 %cmp, label %if.then, label %if.else
16*9880d681SAndroid Build Coastguard Worker
17*9880d681SAndroid Build Coastguard Workerif.then:                                          ; preds = %entry
18*9880d681SAndroid Build Coastguard Worker  %call1 = call double @testi_aux() nounwind
19*9880d681SAndroid Build Coastguard Worker  store double %call1, double* %x, align 8
20*9880d681SAndroid Build Coastguard Worker  br label %if.end4
21*9880d681SAndroid Build Coastguard Worker
22*9880d681SAndroid Build Coastguard Workerif.else:                                          ; preds = %entry
23*9880d681SAndroid Build Coastguard Worker  %cmp2 = fcmp ogt double %call, 1.000000e+00
24*9880d681SAndroid Build Coastguard Worker  br i1 %cmp2, label %if.then3, label %if.end4
25*9880d681SAndroid Build Coastguard Worker
26*9880d681SAndroid Build Coastguard Workerif.then3:                                         ; preds = %if.else
27*9880d681SAndroid Build Coastguard Worker  br label %if.end4
28*9880d681SAndroid Build Coastguard Worker
29*9880d681SAndroid Build Coastguard Workerif.end4:                                          ; preds = %if.else, %if.then3, %if.then
30*9880d681SAndroid Build Coastguard Worker  %y.0 = phi double* [ null, %if.then ], [ %x, %if.then3 ], [ null, %if.else ]
31*9880d681SAndroid Build Coastguard Worker  %call5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %y.0) nounwind
32*9880d681SAndroid Build Coastguard Worker  ret void
33*9880d681SAndroid Build Coastguard Worker}
34*9880d681SAndroid Build Coastguard Worker
35*9880d681SAndroid Build Coastguard Workerdeclare double @testi_aux()
36*9880d681SAndroid Build Coastguard Workerdeclare i32 @printf(i8*, ...)
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