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llvm/test/DebugInfo/Mips/dsr-non-fixed-objects.ll
Vasileios Kalintiris 289f83a7d4 [mips][FastISel] Instantiate the MipsFastISel class only for targets that support FastISel. 
Summary:
Instead of instantiating the MipsFastISel class and checking if the
target is supported in the overriden methods, we should perform that
check before creating the class. This allows us to enable FastISel *only*
for targets that truly support it, ie. MIPS32 to MIPS32R5.

Reviewers: sdardis

Subscribers: ehostunreach, llvm-commits

Differential Revision: https://reviews.llvm.org/D24824

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@284475 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-18 13:05:42 +00:00

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LLVM
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; RUN: llc -march=mips -mcpu=mips32r2 -O0 -filetype=obj -fast-isel=0 <%s | \
; RUN: llvm-dwarfdump -debug-dump=all - | FileCheck %s -check-prefix=F2
; RUN: llc -march=mips -mcpu=mips32r2 -O0 -filetype=obj -fast-isel=0 <%s | \
; RUN: llvm-dwarfdump -debug-dump=all - | FileCheck %s -check-prefix=F3
declare void @llvm.dbg.declare(metadata, metadata, metadata)
declare void @foo(i32*)
; void foo(int *);
;
; int f2(int a, int b) {
; int c __attribute__((aligned(16))) = a + b;
; foo(&c);
; return c;
; }
;
; int *f3(int a, int b) {
; int c __attribute__((aligned(16))) = a + b;
; int *w = alloca(c);
; foo(&c);
; return w;
; }
; c -> DW_OP_breg29(r29): 16
; F2: DW_AT_location [DW_FORM_exprloc] (<0x2> 8d 10 )
; F2: DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000065] = "c")
; Function Attrs: nounwind
define i32 @f2(i32 signext %a, i32 signext %b) !dbg !4 {
entry:
%a.addr = alloca i32, align 4
%b.addr = alloca i32, align 4
%c = alloca i32, align 16
store i32 %a, i32* %a.addr, align 4
call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !15, metadata !16), !dbg !17
store i32 %b, i32* %b.addr, align 4
call void @llvm.dbg.declare(metadata i32* %b.addr, metadata !18, metadata !16), !dbg !19
call void @llvm.dbg.declare(metadata i32* %c, metadata !20, metadata !16), !dbg !21
%0 = load i32, i32* %a.addr, align 4, !dbg !22
%1 = load i32, i32* %b.addr, align 4, !dbg !23
%add = add nsw i32 %0, %1, !dbg !24
store i32 %add, i32* %c, align 16, !dbg !21
call void @foo(i32* %c), !dbg !25
%2 = load i32, i32* %c, align 16, !dbg !26
ret i32 %2, !dbg !27
}
; c -> DW_OP_breg23(r23): 16
; F3: DW_AT_location [DW_FORM_exprloc] (<0x2> 87 10 )
; F3: DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000065] = "c")
define i32* @f3(i32 signext %a, i32 signext %b) !dbg !8 {
entry:
%a.addr = alloca i32, align 4
%b.addr = alloca i32, align 4
%c = alloca i32, align 16
%w = alloca i32*, align 4
store i32 %a, i32* %a.addr, align 4
call void @llvm.dbg.declare(metadata i32* %a.addr, metadata !28, metadata !16), !dbg !29
store i32 %b, i32* %b.addr, align 4
call void @llvm.dbg.declare(metadata i32* %b.addr, metadata !30, metadata !16), !dbg !31
call void @llvm.dbg.declare(metadata i32* %c, metadata !32, metadata !16), !dbg !33
%0 = load i32, i32* %a.addr, align 4, !dbg !34
%1 = load i32, i32* %b.addr, align 4, !dbg !35
%add = add nsw i32 %0, %1, !dbg !36
store i32 %add, i32* %c, align 16, !dbg !33
call void @llvm.dbg.declare(metadata i32** %w, metadata !37, metadata !DIExpression(DW_OP_deref)), !dbg !38
%2 = load i32, i32* %c, align 16, !dbg !39
%3 = alloca i8, i32 %2, !dbg !40
%4 = bitcast i8* %3 to i32*, !dbg !40
store i32* %4, i32** %w, align 4, !dbg !38
call void @foo(i32* %c), !dbg !41
%5 = load i32*, i32** %w, align 4, !dbg !42
ret i32* %5, !dbg !43
}
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!12, !13}
!llvm.ident = !{!14}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 251783) (llvm/trunk 251781)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
!1 = !DIFile(filename: "test.c", directory: "/home/vk/repos/tmp/dwarf")
!2 = !{}
!4 = distinct !DISubprogram(name: "f2", scope: !1, file: !1, line: 20, type: !5, isLocal: false, isDefinition: true, scopeLine: 20, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
!5 = !DISubroutineType(types: !6)
!6 = !{!7, !7, !7}
!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!8 = distinct !DISubprogram(name: "f3", scope: !1, file: !1, line: 27, type: !9, isLocal: false, isDefinition: true, scopeLine: 27, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
!9 = !DISubroutineType(types: !10)
!10 = !{!11, !7, !7}
!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 32, align: 32)
!12 = !{i32 2, !"Dwarf Version", i32 4}
!13 = !{i32 2, !"Debug Info Version", i32 3}
!14 = !{!"clang version 3.8.0 (trunk 251783) (llvm/trunk 251781)"}
!15 = !DILocalVariable(name: "a", arg: 1, scope: !4, file: !1, line: 20, type: !7)
!16 = !DIExpression()
!17 = !DILocation(line: 20, column: 12, scope: !4)
!18 = !DILocalVariable(name: "b", arg: 2, scope: !4, file: !1, line: 20, type: !7)
!19 = !DILocation(line: 20, column: 19, scope: !4)
!20 = !DILocalVariable(name: "c", scope: !4, file: !1, line: 21, type: !7)
!21 = !DILocation(line: 21, column: 7, scope: !4)
!22 = !DILocation(line: 21, column: 40, scope: !4)
!23 = !DILocation(line: 21, column: 44, scope: !4)
!24 = !DILocation(line: 21, column: 42, scope: !4)
!25 = !DILocation(line: 22, column: 3, scope: !4)
!26 = !DILocation(line: 23, column: 10, scope: !4)
!27 = !DILocation(line: 23, column: 3, scope: !4)
!28 = !DILocalVariable(name: "a", arg: 1, scope: !8, file: !1, line: 27, type: !7)
!29 = !DILocation(line: 27, column: 13, scope: !8)
!30 = !DILocalVariable(name: "b", arg: 2, scope: !8, file: !1, line: 27, type: !7)
!31 = !DILocation(line: 27, column: 20, scope: !8)
!32 = !DILocalVariable(name: "c", scope: !8, file: !1, line: 28, type: !7)
!33 = !DILocation(line: 28, column: 7, scope: !8)
!34 = !DILocation(line: 28, column: 40, scope: !8)
!35 = !DILocation(line: 28, column: 44, scope: !8)
!36 = !DILocation(line: 28, column: 42, scope: !8)
!37 = !DILocalVariable(name: "w", scope: !8, file: !1, line: 29, type: !11)
!38 = !DILocation(line: 29, column: 8, scope: !8)
!39 = !DILocation(line: 29, column: 19, scope: !8)
!40 = !DILocation(line: 29, column: 12, scope: !8)
!41 = !DILocation(line: 30, column: 3, scope: !8)
!42 = !DILocation(line: 31, column: 10, scope: !8)
!43 = !DILocation(line: 31, column: 3, scope: !8)
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