45 lines
1.9 KiB
LLVM
45 lines
1.9 KiB
LLVM
; RUN: llc -march=hexagon -mcpu=hexagonv55 -enable-stackovf-sanitizer < %s | FileCheck %s
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; CHECK-LABEL: foo_1
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; CHECK: __runtime_stack_check
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define i32 @foo_1(i32 %n) #0 {
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entry:
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%local = alloca [1024 x i32], align 8
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%0 = bitcast [1024 x i32]* %local to i8*
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call void @llvm.lifetime.start.p0i8(i64 4096, i8* %0) #1
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%arraydecay = getelementptr inbounds [1024 x i32], [1024 x i32]* %local, i32 0, i32 0
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call void @baz_1(i32* %arraydecay) #3
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%arrayidx = getelementptr inbounds [1024 x i32], [1024 x i32]* %local, i32 0, i32 %n
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%1 = load i32, i32* %arrayidx, align 4
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call void @llvm.lifetime.end.p0i8(i64 4096, i8* %0) #1
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ret i32 %1
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}
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; CHECK-LABEL: foo_2
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; CHECK: __save_r16_through_r19_stkchk
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define i32 @foo_2(i32 %n, i32* %y) #0 {
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entry:
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%local = alloca [2048 x i32], align 8
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%0 = bitcast [2048 x i32]* %local to i8*
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call void @llvm.lifetime.start.p0i8(i64 8192, i8* %0) #1
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%arraydecay = getelementptr inbounds [2048 x i32], [2048 x i32]* %local, i32 0, i32 0
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call void @baz_2(i32* %y, i32* %arraydecay) #3
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%1 = load i32, i32* %y, align 4
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%add = add nsw i32 %n, %1
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%arrayidx = getelementptr inbounds [2048 x i32], [2048 x i32]* %local, i32 0, i32 %add
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%2 = load i32, i32* %arrayidx, align 4
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call void @llvm.lifetime.end.p0i8(i64 8192, i8* %0) #1
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ret i32 %2
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}
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declare void @baz_1(i32*) #2
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declare void @baz_2(i32*, i32*) #2
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declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #1
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declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1
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attributes #0 = { nounwind optsize "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind }
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attributes #2 = { optsize "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #3 = { optsize }
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