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TheRock/compiler/amd-llvm/llvm/test/Transforms/SafeStack/X86/escape-phi-call.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

39 lines
1.5 KiB
LLVM

; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
; RUN: opt -passes='require<libcall-lowering-info>,safe-stack' -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
; RUN: opt -passes='require<libcall-lowering-info>,safe-stack' -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
; Addr-of in phi instruction
; Requires protector.
define void @foo() nounwind uwtable safestack {
entry:
; CHECK: __safestack_unsafe_stack_ptr
%x = alloca double, align 8
%call = call double @testi_aux() nounwind
store double %call, ptr %x, align 8
%cmp = fcmp ogt double %call, 3.140000e+00
br i1 %cmp, label %if.then, label %if.else
if.then: ; preds = %entry
%call1 = call double @testi_aux() nounwind
store double %call1, ptr %x, align 8
br label %if.end4
if.else: ; preds = %entry
%cmp2 = fcmp ogt double %call, 1.000000e+00
br i1 %cmp2, label %if.then3, label %if.end4
if.then3: ; preds = %if.else
br label %if.end4
if.end4: ; preds = %if.else, %if.then3, %if.then
%y.0 = phi ptr [ null, %if.then ], [ %x, %if.then3 ], [ null, %if.else ]
%call5 = call i32 (ptr, ...) @printf(ptr @.str, ptr %y.0) nounwind
ret void
}
declare double @testi_aux()
declare i32 @printf(ptr, ...)