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