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llvm-project/llvm/test/DebugInfo/ARM/lowerbdgdeclare_vla.ll

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Debug info: Let LowerDbgDeclare perfom the dbg.declare -> dbg.value lowering only for load/stores to scalar allocas. The resulting values confuse the backend and don't add anything because we can describe array-allocas with a dbg.declare intrinsic just fine. rdar://problem/15464571 llvm-svn: 195052
2013-11-19 07:04:38 +08:00
; RUN: opt -instcombine %s -S | FileCheck %s
;
; Generate me from:
; clang -cc1 -triple thumbv7-apple-ios7.0.0 -S -target-abi apcs-gnu -gdwarf-2 -Os test.c -o test.ll -emit-llvm
; void run(float r)
; {
; int count = r;
; float vla[count];
; vla[0] = r;
; for (int i = 0; i < count; i++)
; vla[i] /= r;
; }
; rdar://problem/15464571
;
; ModuleID = 'test.c'
target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"
target triple = "thumbv7-apple-ios8.0.0"
; Function Attrs: nounwind optsize readnone
define void @run(float %r) #0 {
entry:
Revert r218778 while investigating buldbot breakage. "Move the complex address expression out of DIVariable and into an extra" llvm-svn: 218782
2014-10-02 02:10:54 +08:00
tail call void @llvm.dbg.declare(metadata !{float %r}, metadata !11), !dbg !22
Debug info: Let LowerDbgDeclare perfom the dbg.declare -> dbg.value lowering only for load/stores to scalar allocas. The resulting values confuse the backend and don't add anything because we can describe array-allocas with a dbg.declare intrinsic just fine. rdar://problem/15464571 llvm-svn: 195052
2013-11-19 07:04:38 +08:00
%conv = fptosi float %r to i32, !dbg !23
Revert r218778 while investigating buldbot breakage. "Move the complex address expression out of DIVariable and into an extra" llvm-svn: 218782
2014-10-02 02:10:54 +08:00
tail call void @llvm.dbg.declare(metadata !{i32 %conv}, metadata !12), !dbg !23
Debug info: Let LowerDbgDeclare perfom the dbg.declare -> dbg.value lowering only for load/stores to scalar allocas. The resulting values confuse the backend and don't add anything because we can describe array-allocas with a dbg.declare intrinsic just fine. rdar://problem/15464571 llvm-svn: 195052
2013-11-19 07:04:38 +08:00
%vla = alloca float, i32 %conv, align 4, !dbg !24
Revert r218778 while investigating buldbot breakage. "Move the complex address expression out of DIVariable and into an extra" llvm-svn: 218782
2014-10-02 02:10:54 +08:00
tail call void @llvm.dbg.declare(metadata !{float* %vla}, metadata !14), !dbg !24
Debug info: Let LowerDbgDeclare perfom the dbg.declare -> dbg.value lowering only for load/stores to scalar allocas. The resulting values confuse the backend and don't add anything because we can describe array-allocas with a dbg.declare intrinsic just fine. rdar://problem/15464571 llvm-svn: 195052
2013-11-19 07:04:38 +08:00
; The VLA alloca should be described by a dbg.declare:
Revert r218778 while investigating buldbot breakage. "Move the complex address expression out of DIVariable and into an extra" llvm-svn: 218782
2014-10-02 02:10:54 +08:00
; CHECK: call void @llvm.dbg.declare(metadata !{float* %vla}, metadata ![[VLA:.*]])
Debug info: Let LowerDbgDeclare perfom the dbg.declare -> dbg.value lowering only for load/stores to scalar allocas. The resulting values confuse the backend and don't add anything because we can describe array-allocas with a dbg.declare intrinsic just fine. rdar://problem/15464571 llvm-svn: 195052
2013-11-19 07:04:38 +08:00
; The VLA alloca and following store into the array should not be lowered to like this:
; CHECK-NOT: call void @llvm.dbg.value(metadata !{float %r}, i64 0, metadata ![[VLA]])
; the backend interprets this as "vla has the location of %r".
store float %r, float* %vla, align 4, !dbg !25, !tbaa !26
Revert r218778 while investigating buldbot breakage. "Move the complex address expression out of DIVariable and into an extra" llvm-svn: 218782
2014-10-02 02:10:54 +08:00
tail call void @llvm.dbg.value(metadata !2, i64 0, metadata !18), !dbg !30
Debug info: Let LowerDbgDeclare perfom the dbg.declare -> dbg.value lowering only for load/stores to scalar allocas. The resulting values confuse the backend and don't add anything because we can describe array-allocas with a dbg.declare intrinsic just fine. rdar://problem/15464571 llvm-svn: 195052
2013-11-19 07:04:38 +08:00
%cmp8 = icmp sgt i32 %conv, 0, !dbg !30
br i1 %cmp8, label %for.body, label %for.end, !dbg !30
for.body: ; preds = %entry, %for.body.for.body_crit_edge
%0 = phi float [ %.pre, %for.body.for.body_crit_edge ], [ %r, %entry ]
%i.09 = phi i32 [ %inc, %for.body.for.body_crit_edge ], [ 0, %entry ]
%arrayidx2 = getelementptr inbounds float* %vla, i32 %i.09, !dbg !31
%div = fdiv float %0, %r, !dbg !31
store float %div, float* %arrayidx2, align 4, !dbg !31, !tbaa !26
%inc = add nsw i32 %i.09, 1, !dbg !30
Revert r218778 while investigating buldbot breakage. "Move the complex address expression out of DIVariable and into an extra" llvm-svn: 218782
2014-10-02 02:10:54 +08:00
tail call void @llvm.dbg.value(metadata !{i32 %inc}, i64 0, metadata !18), !dbg !30
Debug info: Let LowerDbgDeclare perfom the dbg.declare -> dbg.value lowering only for load/stores to scalar allocas. The resulting values confuse the backend and don't add anything because we can describe array-allocas with a dbg.declare intrinsic just fine. rdar://problem/15464571 llvm-svn: 195052
2013-11-19 07:04:38 +08:00
%exitcond = icmp eq i32 %inc, %conv, !dbg !30
br i1 %exitcond, label %for.end, label %for.body.for.body_crit_edge, !dbg !30
for.body.for.body_crit_edge: ; preds = %for.body
%arrayidx2.phi.trans.insert = getelementptr inbounds float* %vla, i32 %inc
%.pre = load float* %arrayidx2.phi.trans.insert, align 4, !dbg !31, !tbaa !26
br label %for.body, !dbg !30
for.end: ; preds = %for.body, %entry
ret void, !dbg !32
}
; Function Attrs: nounwind readnone
Revert r218778 while investigating buldbot breakage. "Move the complex address expression out of DIVariable and into an extra" llvm-svn: 218782
2014-10-02 02:10:54 +08:00
declare void @llvm.dbg.declare(metadata, metadata) #1
Debug info: Let LowerDbgDeclare perfom the dbg.declare -> dbg.value lowering only for load/stores to scalar allocas. The resulting values confuse the backend and don't add anything because we can describe array-allocas with a dbg.declare intrinsic just fine. rdar://problem/15464571 llvm-svn: 195052
2013-11-19 07:04:38 +08:00
; Function Attrs: nounwind readnone
Revert r218778 while investigating buldbot breakage. "Move the complex address expression out of DIVariable and into an extra" llvm-svn: 218782
2014-10-02 02:10:54 +08:00
declare void @llvm.dbg.value(metadata, i64, metadata) #1
Debug info: Let LowerDbgDeclare perfom the dbg.declare -> dbg.value lowering only for load/stores to scalar allocas. The resulting values confuse the backend and don't add anything because we can describe array-allocas with a dbg.declare intrinsic just fine. rdar://problem/15464571 llvm-svn: 195052
2013-11-19 07:04:38 +08:00
attributes #0 = { nounwind optsize readnone "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" }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
Debug Info: update testing cases to specify the debug info version number. We are going to drop debug info without a version number or with a different version number, to make sure we don't crash when we see bitcode files with different debug info metadata format. llvm-svn: 195504
2013-11-23 05:49:45 +08:00
!llvm.module.flags = !{!20, !33}
Debug info: Let LowerDbgDeclare perfom the dbg.declare -> dbg.value lowering only for load/stores to scalar allocas. The resulting values confuse the backend and don't add anything because we can describe array-allocas with a dbg.declare intrinsic just fine. rdar://problem/15464571 llvm-svn: 195052
2013-11-19 07:04:38 +08:00
!llvm.ident = !{!21}
!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 ", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/Volumes/Data/radar/15464571/<unknown>] [DW_LANG_C99]
!1 = metadata !{metadata !"<unknown>", metadata !"/Volumes/Data/radar/15464571"}
!2 = metadata !{i32 0}
!3 = metadata !{metadata !4}
!4 = metadata !{i32 786478, metadata !5, metadata !6, metadata !"run", metadata !"run", metadata !"", i32 1, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void (float)* @run, null, null, metadata !10, i32 2} ; [ DW_TAG_subprogram ] [line 1] [def] [scope 2] [run]
!5 = metadata !{metadata !"test.c", metadata !"/Volumes/Data/radar/15464571"}
!6 = metadata !{i32 786473, metadata !5} ; [ DW_TAG_file_type ] [/Volumes/Data/radar/15464571/test.c]
!7 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!8 = metadata !{null, metadata !9}
!9 = metadata !{i32 786468, null, null, metadata !"float", i32 0, i64 32, i64 32, i64 0, i32 0, i32 4} ; [ DW_TAG_base_type ] [float] [line 0, size 32, align 32, offset 0, enc DW_ATE_float]
!10 = metadata !{metadata !11, metadata !12, metadata !14, metadata !18}
!11 = metadata !{i32 786689, metadata !4, metadata !"r", metadata !6, i32 16777217, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [r] [line 1]
!12 = metadata !{i32 786688, metadata !4, metadata !"count", metadata !6, i32 3, metadata !13, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [count] [line 3]
!13 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
!14 = metadata !{i32 786688, metadata !4, metadata !"vla", metadata !6, i32 4, metadata !15, i32 8192, i32 0} ; [ DW_TAG_auto_variable ] [vla] [line 4]
!15 = metadata !{i32 786433, null, null, metadata !"", i32 0, i64 0, i64 32, i32 0, i32 0, metadata !9, metadata !16, i32 0, null, null, null} ; [ DW_TAG_array_type ] [line 0, size 0, align 32, offset 0] [from float]
!16 = metadata !{metadata !17}
!17 = metadata !{i32 786465, i64 0, i64 -1} ; [ DW_TAG_subrange_type ] [unbounded]
!18 = metadata !{i32 786688, metadata !19, metadata !"i", metadata !6, i32 6, metadata !13, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [i] [line 6]
!19 = metadata !{i32 786443, metadata !5, metadata !4, i32 6, i32 0, i32 0} ; [ DW_TAG_lexical_block ] [/Volumes/Data/radar/15464571/test.c]
!20 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
!21 = metadata !{metadata !"clang version 3.4 "}
!22 = metadata !{i32 1, i32 0, metadata !4, null}
!23 = metadata !{i32 3, i32 0, metadata !4, null}
!24 = metadata !{i32 4, i32 0, metadata !4, null}
!25 = metadata !{i32 5, i32 0, metadata !4, null}
!26 = metadata !{metadata !27, metadata !27, i64 0}
!27 = metadata !{metadata !"float", metadata !28, i64 0}
!28 = metadata !{metadata !"omnipotent char", metadata !29, i64 0}
!29 = metadata !{metadata !"Simple C/C++ TBAA"}
!30 = metadata !{i32 6, i32 0, metadata !19, null}
!31 = metadata !{i32 7, i32 0, metadata !19, null}
!32 = metadata !{i32 8, i32 0, metadata !4, null} ; [ DW_TAG_imported_declaration ]
Debug Info: update testing cases to specify the debug info version number. We are going to drop debug info without a version number or with a different version number, to make sure we don't crash when we see bitcode files with different debug info metadata format. llvm-svn: 195504
2013-11-23 05:49:45 +08:00
!33 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}