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instruction and generalize it to optionally dereference the variable. Follow-up to r227544. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227604 91177308-0d34-0410-b5e6-96231b3b80d8
98 lines
4.1 KiB
LLVM
98 lines
4.1 KiB
LLVM
; RUN: opt < %s -S -inline | FileCheck %s
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;
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; The purpose of this test is to check that inline pass preserves debug info
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; for variable using the dbg.declare intrinsic.
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;
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;; This test was generated by running this command:
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;; clang.exe -S -O0 -emit-llvm -g foo.c
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;;
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;; foo.c
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;; ==========================
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;; float foo(float x)
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;; {
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;; return x;
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;; }
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;;
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;; void bar(float *dst)
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;; {
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;; dst[0] = foo(dst[0]);
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;; }
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;; ==========================
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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-windows-msvc"
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; Function Attrs: nounwind
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define float @foo(float %x) #0 {
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entry:
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%x.addr = alloca float, align 4
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store float %x, float* %x.addr, align 4
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call void @llvm.dbg.declare(metadata float* %x.addr, metadata !16, metadata !17), !dbg !18
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%0 = load float* %x.addr, align 4, !dbg !19
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ret float %0, !dbg !19
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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; CHECK: define void @bar
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; Function Attrs: nounwind
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define void @bar(float* %dst) #0 {
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entry:
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; CHECK: [[x_addr_i:%[a-zA-Z0-9.]+]] = alloca float, align 4
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%dst.addr = alloca float*, align 4
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store float* %dst, float** %dst.addr, align 4
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call void @llvm.dbg.declare(metadata float** %dst.addr, metadata !20, metadata !17), !dbg !21
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%0 = load float** %dst.addr, align 4, !dbg !22
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%arrayidx = getelementptr inbounds float* %0, i32 0, !dbg !22
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%1 = load float* %arrayidx, align 4, !dbg !22
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%call = call float @foo(float %1), !dbg !22
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; CHECK-NOT: call float @foo
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; CHECK: void @llvm.dbg.declare(metadata float* [[x_addr_i]], metadata [[m23:![0-9]+]], metadata !17), !dbg [[m24:![0-9]+]]
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%2 = load float** %dst.addr, align 4, !dbg !22
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%arrayidx1 = getelementptr inbounds float* %2, i32 0, !dbg !22
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store float %call, float* %arrayidx1, align 4, !dbg !22
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ret void, !dbg !23
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}
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!13, !14}
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!llvm.ident = !{!15}
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!0 = !{!"0x11\0012\00clang version 3.6.0 (trunk)\000\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [foo.c] [DW_LANG_C99]
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!1 = !{!"foo.c", !""}
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!2 = !{}
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!3 = !{!4, !9}
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!4 = !{!"0x2e\00foo\00foo\00\001\000\001\000\000\00256\000\002", !1, !5, !6, null, float (float)* @foo, null, null, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [scope 2] [foo]
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!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [foo.c]
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!6 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = !{!8, !8}
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!8 = !{!"0x24\00float\000\0032\0032\000\000\004", null, null} ; [ DW_TAG_base_type ] [float] [line 0, size 32, align 32, offset 0, enc DW_ATE_float]
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!9 = !{!"0x2e\00bar\00bar\00\006\000\001\000\000\00256\000\007", !1, !5, !10, null, void (float*)* @bar, null, null, !2} ; [ DW_TAG_subprogram ] [line 6] [def] [scope 7] [bar]
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!10 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !11, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!11 = !{null, !12}
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!12 = !{!"0xf\00\000\0032\0032\000\000", null, null, !8} ; [ DW_TAG_pointer_type ] [line 0, size 32, align 32, offset 0] [from float]
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!13 = !{i32 2, !"Dwarf Version", i32 4}
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!14 = !{i32 2, !"Debug Info Version", i32 2}
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!15 = !{!"clang version 3.6.0 (trunk)"}
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!16 = !{!"0x101\00x\0016777217\000", !4, !5, !8} ; [ DW_TAG_arg_variable ] [x] [line 1]
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!17 = !{!"0x102"} ; [ DW_TAG_expression ]
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!18 = !MDLocation(line: 1, column: 17, scope: !4)
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!19 = !MDLocation(line: 3, column: 5, scope: !4)
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!20 = !{!"0x101\00dst\0016777222\000", !9, !5, !12} ; [ DW_TAG_arg_variable ] [dst] [line 6]
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!21 = !MDLocation(line: 6, column: 17, scope: !9)
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!22 = !MDLocation(line: 8, column: 14, scope: !9)
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!23 = !MDLocation(line: 9, column: 1, scope: !9)
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; CHECK: [[CALL_SITE:![0-9]+]] = distinct !MDLocation(line: 8, column: 14, scope: !9)
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; CHECK: [[m23]] = !{!"0x101\00x\0016777217\000", !4, !5, !8, [[CALL_SITE]]} ; [ DW_TAG_arg_variable ] [x] [line 1]
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; CHECK: [[m24]] = !MDLocation(line: 1, column: 17, scope: !4, inlinedAt: [[CALL_SITE]])
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