derek.holloway
7502bf64a4
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86 lines
2.8 KiB
LLVM
86 lines
2.8 KiB
LLVM
; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=1 -sanitizer-coverage-inline-8bit-counters=1 -sanitizer-coverage-pc-table=1 -S | FileCheck %s
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; Make sure we use the right comdat groups for COFF to avoid relocations
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; against discarded sections. Internal linkage functions are also different from
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; ELF. We don't add a module unique identifier.
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; Test based on this source:
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; int baz(int);
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; static int __attribute__((noinline)) bar(int x) {
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; if (x)
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; return baz(x);
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; return 0;
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; }
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; int foo(int x) {
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; if (baz(0))
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; x = bar(x);
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; return x;
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; }
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; Both new comdats should no duplicates on COFF.
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; CHECK: $foo = comdat nodeduplicate
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; CHECK: $bar = comdat nodeduplicate
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; Tables for 'foo' should be in the 'foo' comdat.
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; CHECK: @__sancov_gen_{{.*}} = private global [1 x i8] zeroinitializer, section ".SCOV$CM", comdat($foo), align 1
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; CHECK: @__sancov_gen_{{.*}} = private constant [2 x ptr]
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; CHECK-SAME: [ptr @foo, ptr inttoptr (i64 1 to ptr)],
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; CHECK-SAME: section ".SCOVP$M", comdat($foo), align 8
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; Tables for 'bar' should be in the 'bar' comdat.
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; CHECK: @__sancov_gen_{{.*}} = private global [1 x i8] zeroinitializer, section ".SCOV$CM", comdat($bar), align 1
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; CHECK: @__sancov_gen_{{.*}} = private constant [2 x ptr]
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; CHECK-SAME: [ptr @bar, ptr inttoptr (i64 1 to ptr)],
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; CHECK-SAME: section ".SCOVP$M", comdat($bar), align 8
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; 'foo' and 'bar' should be in their new comdat groups.
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; CHECK: define dso_local i32 @foo(i32 %x){{.*}} comdat {
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; CHECK: define internal fastcc i32 @bar(i32 %x){{.*}} comdat {
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc19.14.26433"
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; Function Attrs: nounwind uwtable
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define dso_local i32 @foo(i32 %x) local_unnamed_addr #0 {
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entry:
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%call = tail call i32 @baz(i32 0) #3
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%tobool = icmp eq i32 %call, 0
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br i1 %tobool, label %if.end, label %if.then
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if.then: ; preds = %entry
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%call1 = tail call fastcc i32 @bar(i32 %x)
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br label %if.end
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if.end: ; preds = %entry, %if.then
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%x.addr.0 = phi i32 [ %call1, %if.then ], [ %x, %entry ]
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ret i32 %x.addr.0
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}
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declare dso_local i32 @baz(i32) local_unnamed_addr #1
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; Function Attrs: noinline nounwind uwtable
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define internal fastcc i32 @bar(i32 %x) unnamed_addr #2 {
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entry:
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%tobool = icmp eq i32 %x, 0
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br i1 %tobool, label %return, label %if.then
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if.then: ; preds = %entry
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%call = tail call i32 @baz(i32 %x) #3
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br label %return
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return: ; preds = %entry, %if.then
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%retval.0 = phi i32 [ %call, %if.then ], [ 0, %entry ]
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ret i32 %retval.0
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}
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attributes #0 = { nounwind uwtable }
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attributes #1 = { "asdf" }
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attributes #2 = { noinline nounwind uwtable }
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attributes #3 = { nounwind }
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