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llvm source #1
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Compiler
clang (assertions trunk)
clang (trunk)
clang 10.0.0
clang 10.0.1
clang 11.0.0
clang 11.0.1
clang 12.0.0
clang 12.0.1
clang 13.0.0
clang 14.0.0
clang 15.0.0
clang 16.0.0
clang 17.0.1
clang 18.1.0
clang 19.1.0
clang 4.0.1
clang 5.0.0
clang 6.0.0
clang 7.0.0
clang 8.0.0
clang 9.0.0
llc (assertions trunk)
llc (trunk)
llc 10.0.0
llc 10.0.1
llc 11.0.0
llc 11.0.1
llc 12.0.0
llc 12.0.1
llc 13.0.0
llc 14.0.0
llc 15.0.0
llc 16.0.0
llc 17.0.1
llc 18.1.0
llc 19.1.0
llc 3.2
llc 3.3
llc 3.9.1
llc 4.0.0
llc 4.0.1
llc 5.0.0
llc 6.0.0
llc 7.0.0
llc 8.0.0
llc 9.0.0
opt (assertions trunk)
opt (trunk)
opt 10.0.0
opt 10.0.1
opt 11.0.0
opt 11.0.1
opt 12.0.0
opt 12.0.1
opt 13.0.0
opt 14.0.0
opt 15.0.0
opt 16.0.0
opt 17.0.1
opt 18.1.0
opt 19.1.0
opt 3.2
opt 3.3
opt 3.9.1
opt 4.0.0
opt 4.0.1
opt 5.0.0
opt 6.0.0
opt 7.0.0
opt 8.0.0
opt 9.0.0
Options
Source code
; ModuleID = '/tmp/test.cpp' source_filename = "/tmp/test.cpp" target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" @.src = private unnamed_addr constant [14 x i8] c"/tmp/test.cpp\00", align 1 @0 = private unnamed_addr global { { [14 x i8]*, i32, i32 } } { { [14 x i8]*, i32, i32 } { [14 x i8]* @.src, i32 2, i32 16 } } ; Function Attrs: noinline nounwind uwtable define dso_local i8* @_Z4testRcm(i8* dereferenceable(1) %base, i64 %offset) #0 { entry: %base.addr = alloca i8*, align 8 %offset.addr = alloca i64, align 8 store i8* %base, i8** %base.addr, align 8 store i64 %offset, i64* %offset.addr, align 8 %0 = load i8*, i8** %base.addr, align 8 %1 = load i64, i64* %offset.addr, align 8 %add.ptr = getelementptr inbounds i8, i8* %0, i64 %1 %2 = call { i64, i1 } @llvm.smul.with.overflow.i64(i64 1, i64 %1), !nosanitize !2 %3 = extractvalue { i64, i1 } %2, 1, !nosanitize !2 %4 = extractvalue { i64, i1 } %2, 0, !nosanitize !2 %5 = ptrtoint i8* %0 to i64, !nosanitize !2 %6 = add i64 %5, %4, !nosanitize !2 %7 = icmp eq i8* %0, null, !nosanitize !2 %8 = icmp eq i64 %6, 0, !nosanitize !2 %9 = icmp eq i1 %7, %8, !nosanitize !2 %10 = xor i1 %3, true, !nosanitize !2 %11 = icmp uge i64 %6, %5, !nosanitize !2 %12 = and i1 %11, %10, !nosanitize !2 %13 = and i1 %9, %12, !nosanitize !2 br i1 %13, label %cont, label %handler.pointer_overflow, !prof !3, !nosanitize !2 handler.pointer_overflow: ; preds = %entry call void @__ubsan_handle_pointer_overflow(i8* bitcast ({ { [14 x i8]*, i32, i32 } }* @0 to i8*), i64 %5, i64 %6) #3, !nosanitize !2 br label %cont, !nosanitize !2 cont: ; preds = %handler.pointer_overflow, %entry ret i8* %add.ptr } ; Function Attrs: nounwind readnone speculatable willreturn declare { i64, i1 } @llvm.sadd.with.overflow.i64(i64, i64) #1 ; Function Attrs: nounwind readnone speculatable willreturn declare { i64, i1 } @llvm.smul.with.overflow.i64(i64, i64) #1 ; Function Attrs: uwtable declare dso_local void @__ubsan_handle_pointer_overflow(i8*, i64, i64) #2 attributes #0 = { noinline nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } attributes #1 = { nounwind readnone speculatable } attributes #2 = { uwtable } attributes #3 = { nounwind } !llvm.module.flags = !{!0} !llvm.ident = !{!1} !0 = !{i32 1, !"wchar_size", i32 4} !1 = !{!"clang version 10.0.0 (git@github.com:LebedevRI/llvm-project.git 6320cf9163892fb12d774750325cfb2a22cd11ae)"} !2 = !{} !3 = !{!"branch_weights", i32 1048575, i32 1}
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