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1; RUN: opt < %s -passes=asan -asan-use-after-return=never -asan-stack-dynamic-alloca -S | FileCheck %s2; RUN: opt < %s -passes=asan -asan-use-after-return=runtime -asan-stack-dynamic-alloca -S | FileCheck %s3; RUN: opt < %s -passes=asan -asan-use-after-return=always -asan-stack-dynamic-alloca -S | FileCheck %s4; RUN: opt < %s -passes=asan -asan-use-after-return=never -asan-stack-dynamic-alloca=0 -S | FileCheck %s5; RUN: opt < %s -passes=asan -asan-use-after-return=runtime -asan-stack-dynamic-alloca=0 -S | FileCheck %s6; RUN: opt < %s -passes=asan -asan-use-after-return=always -asan-stack-dynamic-alloca=0 -S | FileCheck %s7 8target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"9target triple = "i686-pc-windows-msvc18.0.0"10 11declare i32 @llvm.eh.typeid.for(ptr) #212declare ptr @llvm.frameaddress(i32)13declare ptr @llvm.eh.recoverfp(ptr, ptr)14declare ptr @llvm.localrecover(ptr, ptr, i32)15declare void @llvm.localescape(...) #116 17declare i32 @__gcc_personality_v0(...)18declare void @may_throw(ptr %r)19 20define i32 @main() sanitize_address personality ptr @__gcc_personality_v0 {21entry:22 %r = alloca i32, align 423 %__exception_code = alloca i32, align 424 call void (...) @llvm.localescape(ptr nonnull %__exception_code)25 store i32 0, ptr %r, align 426 invoke void @may_throw(ptr nonnull %r) #427 to label %__try.cont unwind label %lpad28 29lpad: ; preds = %entry30 %0 = landingpad { ptr, i32 }31 catch ptr @"\01?filt$0@0@main@@"32 %1 = extractvalue { ptr, i32 } %0, 133 %2 = call i32 @llvm.eh.typeid.for(ptr @"\01?filt$0@0@main@@") #134 %matches = icmp eq i32 %1, %235 br i1 %matches, label %__except, label %eh.resume36 37__except: ; preds = %lpad38 store i32 1, ptr %r, align 439 br label %__try.cont40 41__try.cont: ; preds = %entry, %__except42 %3 = load i32, ptr %r, align 443 ret i32 %344 45eh.resume: ; preds = %lpad46 resume { ptr, i32 } %047}48 49; Check that the alloca remains static and the localescape call remains in the50; entry block.51 52; CHECK-LABEL: define i32 @main()53; CHECK-NOT: br {{.*}}label54; CHECK: %__exception_code = alloca i32, align 455; CHECK-NOT: br {{.*}}label56; CHECK: call void (...) @llvm.localescape(ptr nonnull %__exception_code)57 58; Function Attrs: nounwind59define internal i32 @"\01?filt$0@0@main@@"() #1 {60entry:61 %0 = tail call ptr @llvm.frameaddress(i32 1)62 %1 = tail call ptr @llvm.eh.recoverfp(ptr @main, ptr %0)63 %2 = tail call ptr @llvm.localrecover(ptr @main, ptr %1, i32 0)64 %3 = getelementptr inbounds i8, ptr %0, i32 -2065 %4 = load ptr, ptr %3, align 466 %5 = getelementptr inbounds { ptr, ptr }, ptr %4, i32 0, i32 067 %6 = load ptr, ptr %5, align 468 %7 = load i32, ptr %6, align 469 store i32 %7, ptr %2, align 470 ret i32 171}72 73; CHECK-LABEL: define internal i32 @"\01?filt$0@0@main@@"()74; CHECK: tail call ptr @llvm.localrecover(ptr @main, ptr {{.*}}, i32 0)75 76define void @ScaleFilterCols_SSSE3(ptr %dst_ptr, ptr %src_ptr, i32 %dst_width, i32 %x, i32 %dx) sanitize_address {77entry:78 %dst_width.addr = alloca i32, align 479 store i32 %dst_width, ptr %dst_width.addr, align 480 %0 = call { ptr, ptr, 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}"(ptr elementtype(i32) nonnull %dst_width.addr, i32 %x, i32 %dx, ptr %dst_ptr, ptr %src_ptr, i32 0, i32 0, i32 0, i32 %dst_width)81 ret void82}83 84define void @ScaleColsUp2_SSE2() sanitize_address {85entry:86 ret void87}88