mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-30 19:29:20 +00:00
ed18a3e6b2
This option has been disabled for a while, and it is going away so I can clean up the coalescer code. The tests that required physreg joining to be enabled were almost all of the form "tiny function with interference between arguments and return value". Such functions are usually inlined in the real world. The problem exposed by phys_subreg_coalesce-3.ll is real, but fairly rare. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157027 91177308-0d34-0410-b5e6-96231b3b80d8
62 lines
3.2 KiB
LLVM
62 lines
3.2 KiB
LLVM
; RUN: llc -mtriple=x86_64-apple-darwin10 < %s | FileCheck %s
|
|
|
|
%struct.a = type { i32 }
|
|
|
|
define i32 @bar(%struct.a* nocapture %b) nounwind ssp {
|
|
entry:
|
|
tail call void @llvm.dbg.value(metadata !{%struct.a* %b}, i64 0, metadata !6), !dbg !13
|
|
%tmp1 = getelementptr inbounds %struct.a* %b, i64 0, i32 0, !dbg !14
|
|
%tmp2 = load i32* %tmp1, align 4, !dbg !14, !tbaa !15
|
|
tail call void @llvm.dbg.value(metadata !{i32 %tmp2}, i64 0, metadata !11), !dbg !14
|
|
%call = tail call i32 (...)* @foo(i32 %tmp2) nounwind , !dbg !18
|
|
%add = add nsw i32 %tmp2, 1, !dbg !19
|
|
ret i32 %add, !dbg !19
|
|
}
|
|
|
|
declare i32 @foo(...)
|
|
|
|
declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
|
|
|
|
!llvm.dbg.sp = !{!0}
|
|
!llvm.dbg.lv.bar = !{!6, !11}
|
|
|
|
!0 = metadata !{i32 589870, i32 0, metadata !1, metadata !"bar", metadata !"bar", metadata !"", metadata !1, i32 5, metadata !3, i1 false, i1 true, i32 0, i32 0, i32 0, i32 256, i1 true, i32 (%struct.a*)* @bar} ; [ DW_TAG_subprogram ]
|
|
!1 = metadata !{i32 589865, metadata !"bar.c", metadata !"/private/tmp", metadata !2} ; [ DW_TAG_file_type ]
|
|
!2 = metadata !{i32 589841, i32 0, i32 12, metadata !"bar.c", metadata !"/private/tmp", metadata !"clang version 2.9 (trunk 122997)", i1 true, i1 true, metadata !"", i32 0} ; [ DW_TAG_compile_unit ]
|
|
!3 = metadata !{i32 589845, metadata !1, metadata !"", metadata !1, i32 0, i64 0, i64 0, i32 0, i32 0, i32 0, metadata !4, i32 0, i32 0} ; [ DW_TAG_subroutine_type ]
|
|
!4 = metadata !{metadata !5}
|
|
!5 = metadata !{i32 589860, metadata !2, metadata !"int", null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
|
|
!6 = metadata !{i32 590081, metadata !0, metadata !"b", metadata !1, i32 5, metadata !7, i32 0} ; [ DW_TAG_arg_variable ]
|
|
!7 = metadata !{i32 589839, metadata !2, metadata !"", null, i32 0, i64 64, i64 64, i64 0, i32 0, metadata !8} ; [ DW_TAG_pointer_type ]
|
|
!8 = metadata !{i32 589843, metadata !2, metadata !"a", metadata !1, i32 1, i64 32, i64 32, i32 0, i32 0, i32 0, metadata !9, i32 0, i32 0} ; [ DW_TAG_structure_type ]
|
|
!9 = metadata !{metadata !10}
|
|
!10 = metadata !{i32 589837, metadata !1, metadata !"c", metadata !1, i32 2, i64 32, i64 32, i64 0, i32 0, metadata !5} ; [ DW_TAG_member ]
|
|
!11 = metadata !{i32 590080, metadata !12, metadata !"x", metadata !1, i32 6, metadata !5, i32 0} ; [ DW_TAG_auto_variable ]
|
|
!12 = metadata !{i32 589835, metadata !0, i32 5, i32 22, metadata !1, i32 0} ; [ DW_TAG_lexical_block ]
|
|
!13 = metadata !{i32 5, i32 19, metadata !0, null}
|
|
!14 = metadata !{i32 6, i32 14, metadata !12, null}
|
|
!15 = metadata !{metadata !"int", metadata !16}
|
|
!16 = metadata !{metadata !"omnipotent char", metadata !17}
|
|
!17 = metadata !{metadata !"Simple C/C++ TBAA", null}
|
|
!18 = metadata !{i32 7, i32 2, metadata !12, null}
|
|
!19 = metadata !{i32 8, i32 2, metadata !12, null}
|
|
|
|
; Check that variable bar:b value range is appropriately trucated in debug info.
|
|
; The variable is in %rdi which is clobbered by 'movl %ebx, %edi'
|
|
; Here Ltmp7 is the end of the location range.
|
|
|
|
;CHECK: .loc 1 7 2
|
|
;CHECK: movl
|
|
;CHECK-NEXT: [[CLOBBER:Ltmp[0-9]*]]
|
|
|
|
;CHECK:Ldebug_loc0:
|
|
;CHECK-NEXT: .quad
|
|
;CHECK-NEXT: .quad [[CLOBBER]]
|
|
;CHECK-NEXT: Lset{{.*}} = Ltmp{{.*}}-Ltmp{{.*}}
|
|
;CHECK-NEXT: .short Lset
|
|
;CHECK-NEXT: Ltmp
|
|
;CHECK-NEXT: .byte 85
|
|
;CHECK-NEXT: Ltmp
|
|
;CHECK-NEXT: .quad 0
|
|
;CHECK-NEXT: .quad 0
|