2014-03-26 17:51:45 +08:00
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; RUN: llc -mcpu=core2 -mtriple=i686-pc-win32 -O0 < %s | FileCheck --check-prefix=X86 %s
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; This LL file was generated by running clang on the following code with
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; -fsanitize=address
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; D:\asan.c:
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; 1 int foo(void) {
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; 2 return 0;
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; 3 }
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; The module ctor has no debug info. All we have to do is don't crash.
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; X86: _asan.module_ctor:
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; X86-NEXT: # BB
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; X86-NEXT: calll ___asan_init_v3
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; X86-NEXT: retl
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; ModuleID = 'asan.c'
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target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
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target triple = "i686-pc-win32"
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@llvm.global_ctors = appending global [1 x { i32, void ()* }] [{ i32, void ()* } { i32 1, void ()* @asan.module_ctor }]
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; Function Attrs: nounwind sanitize_address
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define i32 @foo() #0 {
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entry:
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ret i32 0, !dbg !10
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}
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define internal void @asan.module_ctor() {
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call void @__asan_init_v3()
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ret void
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}
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declare void @__asan_init_v3()
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declare void @__asan_report_load1(i32)
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declare void @__asan_report_load2(i32)
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declare void @__asan_report_load4(i32)
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declare void @__asan_report_load8(i32)
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declare void @__asan_report_load16(i32)
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declare void @__asan_report_store1(i32)
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declare void @__asan_report_store2(i32)
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declare void @__asan_report_store4(i32)
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declare void @__asan_report_store8(i32)
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declare void @__asan_report_store16(i32)
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declare void @__asan_report_load_n(i32, i32)
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declare void @__asan_report_store_n(i32, i32)
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declare void @__asan_handle_no_return()
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declare void @__sanitizer_cov()
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declare void @__sanitizer_ptr_cmp(i32, i32)
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declare void @__sanitizer_ptr_sub(i32, i32)
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declare void @__asan_before_dynamic_init(i32)
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declare void @__asan_after_dynamic_init()
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declare void @__asan_register_globals(i32, i32)
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declare void @__asan_unregister_globals(i32, i32)
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attributes #0 = { nounwind sanitize_address "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!7, !8}
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!llvm.ident = !{!9}
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IR: Make metadata typeless in assembly
Now that `Metadata` is typeless, reflect that in the assembly. These
are the matching assembly changes for the metadata/value split in
r223802.
- Only use the `metadata` type when referencing metadata from a call
intrinsic -- i.e., only when it's used as a `Value`.
- Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode`
when referencing it from call intrinsics.
So, assembly like this:
define @foo(i32 %v) {
call void @llvm.foo(metadata !{i32 %v}, metadata !0)
call void @llvm.foo(metadata !{i32 7}, metadata !0)
call void @llvm.foo(metadata !1, metadata !0)
call void @llvm.foo(metadata !3, metadata !0)
call void @llvm.foo(metadata !{metadata !3}, metadata !0)
ret void, !bar !2
}
!0 = metadata !{metadata !2}
!1 = metadata !{i32* @global}
!2 = metadata !{metadata !3}
!3 = metadata !{}
turns into this:
define @foo(i32 %v) {
call void @llvm.foo(metadata i32 %v, metadata !0)
call void @llvm.foo(metadata i32 7, metadata !0)
call void @llvm.foo(metadata i32* @global, metadata !0)
call void @llvm.foo(metadata !3, metadata !0)
call void @llvm.foo(metadata !{!3}, metadata !0)
ret void, !bar !2
}
!0 = !{!2}
!1 = !{i32* @global}
!2 = !{!3}
!3 = !{}
I wrote an upgrade script that handled almost all of the tests in llvm
and many of the tests in cfe (even handling many `CHECK` lines). I've
attached it (or will attach it in a moment if you're speedy) to PR21532
to help everyone update their out-of-tree testcases.
This is part of PR21532.
llvm-svn: 224257
2014-12-16 03:07:53 +08:00
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!0 = !{!"0x11\0012\00clang version 3.5.0 \000\00\000\00\002", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [D:\/asan.c] [DW_LANG_C99]
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!1 = !{!"asan.c", !"D:\5C"}
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!2 = !{}
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!3 = !{!4}
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!4 = !{!"0x2e\00foo\00foo\00\001\000\001\000\006\00256\000\001", !1, !5, !6, null, i32 ()* @foo, null, null, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
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!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [D:\/asan.c]
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!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = !{i32 2, !"Dwarf Version", i32 4}
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!8 = !{i32 1, !"Debug Info Version", i32 2}
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!9 = !{!"clang version 3.5.0 "}
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!10 = !{i32 2, i32 0, !4, null}
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