forked from OSchip/llvm-project
112 lines
5.0 KiB
LLVM
112 lines
5.0 KiB
LLVM
; RUN: llc -O0 -mtriple=x86_64-apple-darwin < %s -filetype=obj \
|
|
; RUN: | llvm-dwarfdump -debug-dump=info - \
|
|
; RUN: | FileCheck %s -check-prefix=CHECK -check-prefix=DWARF4
|
|
; RUN: llc -O0 -mtriple=x86_64-apple-darwin < %s -filetype=obj -dwarf-version=3 \
|
|
; RUN: | llvm-dwarfdump -debug-dump=info - \
|
|
; RUN: | FileCheck %s -check-prefix=CHECK -check-prefix=DWARF3
|
|
|
|
; FIXME: The location here needs to be fixed, but llvm-dwarfdump doesn't handle
|
|
; DW_AT_location lists yet.
|
|
; DWARF4: DW_AT_location [DW_FORM_sec_offset] (0x00000000)
|
|
|
|
; FIXME: The location here needs to be fixed, but llvm-dwarfdump doesn't handle
|
|
; DW_AT_location lists yet.
|
|
; DWARF3: DW_AT_location [DW_FORM_data4] (0x00000000)
|
|
|
|
; CHECK-NOT: DW_TAG
|
|
; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000067] = "vla")
|
|
|
|
; Unfortunately llvm-dwarfdump can't unparse a list of DW_AT_locations
|
|
; right now, so we check the asm output:
|
|
; RUN: llc -O0 -mtriple=x86_64-apple-darwin %s -o - -filetype=asm | FileCheck %s -check-prefix=ASM-CHECK
|
|
; vla should have a register-indirect address at one point.
|
|
; ASM-CHECK: DEBUG_VALUE: vla <- RCX
|
|
; ASM-CHECK: DW_OP_breg2
|
|
|
|
; RUN: llvm-as %s -o - | llvm-dis - | FileCheck %s --check-prefix=PRETTY-PRINT
|
|
; PRETTY-PRINT: [ DW_TAG_expression ] [DW_OP_deref]
|
|
|
|
define void @testVLAwithSize(i32 %s) nounwind uwtable ssp {
|
|
entry:
|
|
%s.addr = alloca i32, align 4
|
|
%saved_stack = alloca i8*
|
|
%i = alloca i32, align 4
|
|
store i32 %s, i32* %s.addr, align 4
|
|
call void @llvm.dbg.declare(metadata i32* %s.addr, metadata !10, metadata !{!"0x102"}), !dbg !11
|
|
%0 = load i32* %s.addr, align 4, !dbg !12
|
|
%1 = zext i32 %0 to i64, !dbg !12
|
|
%2 = call i8* @llvm.stacksave(), !dbg !12
|
|
store i8* %2, i8** %saved_stack, !dbg !12
|
|
%vla = alloca i32, i64 %1, align 16, !dbg !12
|
|
call void @llvm.dbg.declare(metadata i32* %vla, metadata !14, metadata !30), !dbg !18
|
|
call void @llvm.dbg.declare(metadata i32* %i, metadata !19, metadata !{!"0x102"}), !dbg !20
|
|
store i32 0, i32* %i, align 4, !dbg !21
|
|
br label %for.cond, !dbg !21
|
|
|
|
for.cond: ; preds = %for.inc, %entry
|
|
%3 = load i32* %i, align 4, !dbg !21
|
|
%4 = load i32* %s.addr, align 4, !dbg !21
|
|
%cmp = icmp slt i32 %3, %4, !dbg !21
|
|
br i1 %cmp, label %for.body, label %for.end, !dbg !21
|
|
|
|
for.body: ; preds = %for.cond
|
|
%5 = load i32* %i, align 4, !dbg !23
|
|
%6 = load i32* %i, align 4, !dbg !23
|
|
%mul = mul nsw i32 %5, %6, !dbg !23
|
|
%7 = load i32* %i, align 4, !dbg !23
|
|
%idxprom = sext i32 %7 to i64, !dbg !23
|
|
%arrayidx = getelementptr inbounds i32* %vla, i64 %idxprom, !dbg !23
|
|
store i32 %mul, i32* %arrayidx, align 4, !dbg !23
|
|
br label %for.inc, !dbg !25
|
|
|
|
for.inc: ; preds = %for.body
|
|
%8 = load i32* %i, align 4, !dbg !26
|
|
%inc = add nsw i32 %8, 1, !dbg !26
|
|
store i32 %inc, i32* %i, align 4, !dbg !26
|
|
br label %for.cond, !dbg !26
|
|
|
|
for.end: ; preds = %for.cond
|
|
%9 = load i8** %saved_stack, !dbg !27
|
|
call void @llvm.stackrestore(i8* %9), !dbg !27
|
|
ret void, !dbg !27
|
|
}
|
|
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
|
|
|
|
declare i8* @llvm.stacksave() nounwind
|
|
|
|
declare void @llvm.stackrestore(i8*) nounwind
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!29}
|
|
|
|
!0 = !{!"0x11\0012\00clang version 3.2 (trunk 156005) (llvm/trunk 156000)\000\00\000\00\001", !28, !1, !1, !3, !1, !1} ; [ DW_TAG_compile_unit ]
|
|
!1 = !{}
|
|
!3 = !{!5}
|
|
!5 = !{!"0x2e\00testVLAwithSize\00testVLAwithSize\00\001\000\001\000\006\00256\000\002", !28, !6, !7, null, void (i32)* @testVLAwithSize, null, null, !1} ; [ DW_TAG_subprogram ]
|
|
!6 = !{!"0x29", !28} ; [ DW_TAG_file_type ]
|
|
!7 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
|
|
!8 = !{null, !9}
|
|
!9 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
|
|
!10 = !{!"0x101\00s\0016777217\000", !5, !6, !9} ; [ DW_TAG_arg_variable ]
|
|
!11 = !{i32 1, i32 26, !5, null}
|
|
!12 = !{i32 3, i32 13, !13, null}
|
|
!13 = !{!"0xb\002\001\000", !28, !5} ; [ DW_TAG_lexical_block ]
|
|
!14 = !{!"0x100\00vla\003\008192", !13, !6, !15} ; [ DW_TAG_auto_variable ]
|
|
!15 = !{!"0x1\00\000\000\0032\000\000", null, null, !9, !16, i32 0, null, null, null} ; [ DW_TAG_array_type ] [line 0, size 0, align 32, offset 0] [from int]
|
|
!16 = !{!17}
|
|
!17 = !{!"0x21\000\00-1"} ; [ DW_TAG_subrange_type ]
|
|
!18 = !{i32 3, i32 7, !13, null}
|
|
!19 = !{!"0x100\00i\004\000", !13, !6, !9} ; [ DW_TAG_auto_variable ]
|
|
!20 = !{i32 4, i32 7, !13, null}
|
|
!21 = !{i32 5, i32 8, !22, null}
|
|
!22 = !{!"0xb\005\003\001", !28, !13} ; [ DW_TAG_lexical_block ]
|
|
!23 = !{i32 6, i32 5, !24, null}
|
|
!24 = !{!"0xb\005\0027\002", !28, !22} ; [ DW_TAG_lexical_block ]
|
|
!25 = !{i32 7, i32 3, !24, null}
|
|
!26 = !{i32 5, i32 22, !22, null}
|
|
!27 = !{i32 8, i32 1, !13, null}
|
|
!28 = !{!"bar.c", !"/Users/echristo/tmp"}
|
|
!29 = !{i32 1, !"Debug Info Version", i32 2}
|
|
!30 = !{!"0x102\006"} ; [ DW_TAG_expression ] [DW_OP_deref]
|