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; RUN: opt < %s -asan -asan-module -asan-use-after-return -asan-stack-dynamic-alloca -S | FileCheck %s
; RUN: opt < %s -asan -asan-module -asan-use-after-return=0 -asan-stack-dynamic-alloca=0 -S | FileCheck %s
target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
target triple = "i686-pc-windows-msvc18.0.0"
declare i32 @llvm.eh.typeid.for(i8*) #2
declare i8* @llvm.frameaddress(i32)
declare i8* @llvm.x86.seh.recoverfp(i8*, i8*)
declare i8* @llvm.localrecover(i8*, i8*, i32)
declare void @llvm.localescape(...) #1
declare i32 @_except_handler3(...)
declare void @may_throw(i32* %r)
define i32 @main() sanitize_address personality i8* bitcast (i32 (...)* @_except_handler3 to i8*) {
entry:
%r = alloca i32, align 4
%__exception_code = alloca i32, align 4
call void (...) @llvm.localescape(i32* nonnull %__exception_code)
%0 = bitcast i32* %r to i8*
store i32 0, i32* %r, align 4
invoke void @may_throw(i32* nonnull %r) #4
to label %__try.cont unwind label %lpad
lpad: ; preds = %entry
%1 = landingpad { i8*, i32 }
catch i8* bitcast (i32 ()* @"\01?filt$0@0@main@@" to i8*)
%2 = extractvalue { i8*, i32 } %1, 1
%3 = call i32 @llvm.eh.typeid.for(i8* bitcast (i32 ()* @"\01?filt$0@0@main@@" to i8*)) #1
%matches = icmp eq i32 %2, %3
br i1 %matches, label %__except, label %eh.resume
__except: ; preds = %lpad
store i32 1, i32* %r, align 4
br label %__try.cont
__try.cont: ; preds = %entry, %__except
%4 = load i32, i32* %r, align 4
ret i32 %4
eh.resume: ; preds = %lpad
resume { i8*, i32 } %1
}
; Check that the alloca remains static and the localescape call remains in the
; entry block.
; CHECK-LABEL: define i32 @main()
; CHECK-NOT: br {{.*}}label
; CHECK: %__exception_code = alloca i32, align 4
; CHECK-NOT: br {{.*}}label
; CHECK: call void (...) @llvm.localescape(i32* nonnull %__exception_code)
; Function Attrs: nounwind
define internal i32 @"\01?filt$0@0@main@@"() #1 {
entry:
%0 = tail call i8* @llvm.frameaddress(i32 1)
%1 = tail call i8* @llvm.x86.seh.recoverfp(i8* bitcast (i32 ()* @main to i8*), i8* %0)
%2 = tail call i8* @llvm.localrecover(i8* bitcast (i32 ()* @main to i8*), i8* %1, i32 0)
%__exception_code = bitcast i8* %2 to i32*
%3 = getelementptr inbounds i8, i8* %0, i32 -20
%4 = bitcast i8* %3 to { i32*, i8* }**
%5 = load { i32*, i8* }*, { i32*, i8* }** %4, align 4
%6 = getelementptr inbounds { i32*, i8* }, { i32*, i8* }* %5, i32 0, i32 0
%7 = load i32*, i32** %6, align 4
%8 = load i32, i32* %7, align 4
store i32 %8, i32* %__exception_code, align 4
ret i32 1
}
; CHECK-LABEL: define internal i32 @"\01?filt$0@0@main@@"()
; CHECK: tail call i8* @llvm.localrecover(i8* bitcast (i32 ()* @main to i8*), i8* {{.*}}, i32 0)
define void @ScaleFilterCols_SSSE3(i8* %dst_ptr, i8* %src_ptr, i32 %dst_width, i32 %x, i32 %dx) sanitize_address {
entry:
%dst_width.addr = alloca i32, align 4
store i32 %dst_width, i32* %dst_width.addr, align 4
%0 = call { i8*, i8*, i32, i32, i32 } asm sideeffect "", "=r,=r,={ax},=r,=r,=*rm,rm,rm,0,1,2,3,4,5,~{memory},~{cc},~{xmm0},~{xmm1},~{xmm2},~{xmm3},~{xmm4},~{xmm5},~{xmm6},~{dirflag},~{fpsr},~{flags}"(i32* nonnull %dst_width.addr, i32 %x, i32 %dx, i8* %dst_ptr, i8* %src_ptr, i32 0, i32 0, i32 0, i32 %dst_width)
ret void
}
define void @ScaleColsUp2_SSE2() sanitize_address {
entry:
ret void
}
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