Files
clang-p2996/llvm/test/Transforms/Inline/inline_dbg_declare.ll
Chandler Carruth 625038d5d5 [PM] Turn on the new PM's inliner in addition to the current one for
most of the inliner test cases.

The inliner involves a bunch of interesting code and tends to be where
most of the issues I've seen experimenting with the new PM lie. All of
these test cases pass, but I'd like to keep some more thorough coverage
here so doing a fairly blanket enabling.

There are a handful of interesting tests I've not enabled yet because
they're focused on the always inliner, or on functionality that doesn't
(yet) exist in the inliner.

llvm-svn: 290592
2016-12-27 07:18:43 +00:00

100 lines
4.0 KiB
LLVM

; RUN: opt < %s -S -inline | FileCheck %s
; RUN: opt < %s -S -passes='cgscc(inline)' | FileCheck %s
;
; The purpose of this test is to check that inline pass preserves debug info
; for variable using the dbg.declare intrinsic.
;
;; This test was generated by running this command:
;; clang.exe -S -O0 -emit-llvm -g foo.c
;;
;; foo.c
;; ==========================
;; float foo(float x)
;; {
;; return x;
;; }
;;
;; void bar(float *dst)
;; {
;; dst[0] = foo(dst[0]);
;; }
;; ==========================
target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
target triple = "i686-pc-windows-msvc"
; Function Attrs: nounwind
define float @foo(float %x) #0 !dbg !4 {
entry:
%x.addr = alloca float, align 4
store float %x, float* %x.addr, align 4
call void @llvm.dbg.declare(metadata float* %x.addr, metadata !16, metadata !17), !dbg !18
%0 = load float, float* %x.addr, align 4, !dbg !19
ret float %0, !dbg !19
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
; CHECK: define void @bar
; Function Attrs: nounwind
define void @bar(float* %dst) #0 !dbg !9 {
entry:
; CHECK: [[x_addr_i:%[a-zA-Z0-9.]+]] = alloca float, align 4
; CHECK-NEXT: void @llvm.dbg.declare(metadata float* [[x_addr_i]], metadata [[m23:![0-9]+]], metadata !{{[0-9]+}}), !dbg [[m24:![0-9]+]]
%dst.addr = alloca float*, align 4
store float* %dst, float** %dst.addr, align 4
call void @llvm.dbg.declare(metadata float** %dst.addr, metadata !20, metadata !17), !dbg !21
%0 = load float*, float** %dst.addr, align 4, !dbg !22
%arrayidx = getelementptr inbounds float, float* %0, i32 0, !dbg !22
%1 = load float, float* %arrayidx, align 4, !dbg !22
%call = call float @foo(float %1), !dbg !22
; CHECK-NOT: call float @foo
%2 = load float*, float** %dst.addr, align 4, !dbg !22
%arrayidx1 = getelementptr inbounds float, float* %2, i32 0, !dbg !22
store float %call, float* %arrayidx1, align 4, !dbg !22
ret void, !dbg !23
}
attributes #0 = { nounwind }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!13, !14}
!llvm.ident = !{!15}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.6.0 (trunk)", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
!1 = !DIFile(filename: "foo.c", directory: "")
!2 = !{}
!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, variables: !2)
!5 = !DIFile(filename: "foo.c", directory: "")
!6 = !DISubroutineType(types: !7)
!7 = !{!8, !8}
!8 = !DIBasicType(tag: DW_TAG_base_type, name: "float", size: 32, align: 32, encoding: DW_ATE_float)
!9 = distinct !DISubprogram(name: "bar", line: 6, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 7, file: !1, scope: !5, type: !10, variables: !2)
!10 = !DISubroutineType(types: !11)
!11 = !{null, !12}
!12 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, baseType: !8)
!13 = !{i32 2, !"Dwarf Version", i32 4}
!14 = !{i32 2, !"Debug Info Version", i32 3}
!15 = !{!"clang version 3.6.0 (trunk)"}
!16 = !DILocalVariable(name: "x", line: 1, arg: 1, scope: !4, file: !5, type: !8)
!17 = !DIExpression()
!18 = !DILocation(line: 1, column: 17, scope: !4)
!19 = !DILocation(line: 3, column: 5, scope: !4)
!20 = !DILocalVariable(name: "dst", line: 6, arg: 1, scope: !9, file: !5, type: !12)
!21 = !DILocation(line: 6, column: 17, scope: !9)
!22 = !DILocation(line: 8, column: 14, scope: !9)
!23 = !DILocation(line: 9, column: 1, scope: !9)
; CHECK: [[FOO:![0-9]+]] = distinct !DISubprogram(name: "foo",
; CHECK: [[m23]] = !DILocalVariable(name: "x", arg: 1, scope: [[FOO]]
; CHECK: [[BAR:![0-9]+]] = distinct !DISubprogram(name: "bar",
; CHECK: [[m24]] = !DILocation(line: 1, column: 17, scope: [[FOO]], inlinedAt: [[CALL_SITE:![0-9]+]])
; CHECK: [[CALL_SITE]] = distinct !DILocation(line: 8, column: 14, scope: [[BAR]])