93 lines
3.5 KiB
LLVM
93 lines
3.5 KiB
LLVM
|
; RUN: llc < %s | FileCheck %s
|
||
|
|
|
||
|
|
; Input C code:
|
||
|
|
|
||
|
|
; int i = input(); // Nested case
|
||
|
|
; int j = input(); // Trivial def-use.
|
||
|
|
; output(i, j);
|
||
|
|
|
||
|
|
; The ll below generates 330 lines of .S, so relevant parts that the
|
||
|
|
; WebAssemblyDebugFixup pass affects:
|
||
|
|
|
||
|
|
; CHECK: call input
|
||
|
|
; CHECK: .Ltmp0:
|
||
|
|
; CHECK: call input
|
||
|
|
; CHECK: .Ltmp1:
|
||
|
|
; CHECK: call output
|
||
|
|
; CHECK: .Ltmp2:
|
||
|
|
|
||
|
|
; This defines variable "i" which is live on the stack between Ltmp0 and Ltmp2,
|
||
|
|
; 2 = TI_OPERAND_STACK and 0 = stack offset.
|
||
|
|
|
||
|
|
; CHECK: .section .debug_loc,"",@
|
||
|
|
; CHECK: .Ldebug_loc0:
|
||
|
|
; CHECK: .int32 .Ltmp0-.Lfunc_begin0
|
||
|
|
; CHECK: .int32 .Ltmp2-.Lfunc_begin0
|
||
|
|
; CHECK: .int16 4 # Loc expr size
|
||
|
|
; CHECK: .int8 237 # DW_OP_WASM_location
|
||
|
|
; CHECK: .int8 2 # 2
|
||
|
|
; CHECK: .int8 0 # 0
|
||
|
|
; CHECK: .int8 159 # DW_OP_stack_value
|
||
|
|
|
||
|
|
; This defines variable "j" which is live on the stack between Ltmp1 and Ltmp2,
|
||
|
|
; 2 = TI_OPERAND_STACK and 1 = stack offset.
|
||
|
|
|
||
|
|
; CHECK: .Ldebug_loc1:
|
||
|
|
; CHECK: .int32 .Ltmp1-.Lfunc_begin0
|
||
|
|
; CHECK: .int32 .Ltmp2-.Lfunc_begin0
|
||
|
|
; CHECK: .int16 4 # Loc expr size
|
||
|
|
; CHECK: .int8 237 # DW_OP_WASM_location
|
||
|
|
; CHECK: .int8 2 # 2
|
||
|
|
; CHECK: .int8 1 # 1
|
||
|
|
; CHECK: .int8 159 # DW_OP_stack_value
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
source_filename = "stackified.c"
|
||
|
|
target triple = "wasm32-unknown-unknown"
|
||
|
|
|
||
|
|
define void @foo() !dbg !12 {
|
||
|
|
entry:
|
||
|
|
%call = call i32 @input(), !dbg !18
|
||
|
|
call void @llvm.dbg.value(metadata i32 %call, metadata !16, metadata !DIExpression()), !dbg !19
|
||
|
|
%call1 = call i32 @input(), !dbg !20
|
||
|
|
call void @llvm.dbg.value(metadata i32 %call1, metadata !17, metadata !DIExpression()), !dbg !19
|
||
|
|
call void @output(i32 %call, i32 %call1), !dbg !21
|
||
|
|
ret void, !dbg !22
|
||
|
|
}
|
||
|
|
|
||
|
|
declare i32 @input()
|
||
|
|
|
||
|
|
declare !dbg !4 void @output(i32, i32)
|
||
|
|
|
||
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata)
|
||
|
|
|
||
|
|
!llvm.dbg.cu = !{!0}
|
||
|
|
!llvm.module.flags = !{!8, !9, !10}
|
||
|
|
!llvm.ident = !{!11}
|
||
|
|
|
||
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0 (https://github.com/llvm/llvm-project.git ed7aaf832444411ce93aa0443425ce401f5c7a8e)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
|
||
|
|
!1 = !DIFile(filename: "stackified.c", directory: "C:\\stuff\\llvm-project")
|
||
|
|
!2 = !{}
|
||
|
|
!3 = !{!4}
|
||
|
|
!4 = !DISubprogram(name: "output", scope: !1, file: !1, line: 2, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
|
||
|
|
!5 = !DISubroutineType(types: !6)
|
||
|
|
!6 = !{null, !7, !7}
|
||
|
|
!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
||
|
|
!8 = !{i32 7, !"Dwarf Version", i32 4}
|
||
|
|
!9 = !{i32 2, !"Debug Info Version", i32 3}
|
||
|
|
!10 = !{i32 1, !"wchar_size", i32 4}
|
||
|
|
!11 = !{!"clang version 11.0.0 (https://github.com/llvm/llvm-project.git ed7aaf832444411ce93aa0443425ce401f5c7a8e)"}
|
||
|
|
!12 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !13, scopeLine: 3, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)
|
||
|
|
!13 = !DISubroutineType(types: !14)
|
||
|
|
!14 = !{null}
|
||
|
|
!15 = !{!16, !17}
|
||
|
|
!16 = !DILocalVariable(name: "i", scope: !12, file: !1, line: 4, type: !7)
|
||
|
|
!17 = !DILocalVariable(name: "j", scope: !12, file: !1, line: 5, type: !7)
|
||
|
|
!18 = !DILocation(line: 4, column: 11, scope: !12)
|
||
|
|
!19 = !DILocation(line: 0, scope: !12)
|
||
|
|
!20 = !DILocation(line: 5, column: 11, scope: !12)
|
||
|
|
!21 = !DILocation(line: 6, column: 3, scope: !12)
|
||
|
|
!22 = !DILocation(line: 7, column: 1, scope: !12)
|