mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 03:33:20 +01:00
92 lines
3.8 KiB
LLVM
92 lines
3.8 KiB
LLVM
; RUN: opt %s -sroa -verify -S -o - | FileCheck %s
|
|
; From:
|
|
; struct prog_src_register {
|
|
; unsigned : 4;
|
|
; int Index : 12 + 1;
|
|
; unsigned : 12;
|
|
; unsigned : 4;
|
|
; int : 12 + 1
|
|
; } src_reg_for_float() {
|
|
; struct prog_src_register a;
|
|
; memset(&a, 0, sizeof(a));
|
|
; int local = a.Index;
|
|
; return a;
|
|
; }
|
|
; ModuleID = 'pr22495.c'
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
; When SROA is creating new smaller allocas, it may add padding.
|
|
;
|
|
; There should be no debug info for the padding.
|
|
; CHECK-NOT: DW_OP_bit_piece, 56
|
|
; CHECK: DIExpression(DW_OP_bit_piece, 32, 24)
|
|
; CHECK-NOT: DW_OP_bit_piece, 56
|
|
; CHECK: DIExpression(DW_OP_bit_piece, 0, 32)
|
|
; CHECK-NOT: DW_OP_bit_piece, 56
|
|
%struct.prog_src_register = type { i32, i24 }
|
|
|
|
; Function Attrs: nounwind
|
|
define i64 @src_reg_for_float() #0 !dbg !4 {
|
|
entry:
|
|
%retval = alloca %struct.prog_src_register, align 4
|
|
%a = alloca %struct.prog_src_register, align 4
|
|
%local = alloca i32, align 4
|
|
call void @llvm.dbg.declare(metadata %struct.prog_src_register* %a, metadata !16, metadata !17), !dbg !18
|
|
%0 = bitcast %struct.prog_src_register* %a to i8*, !dbg !19
|
|
call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 8, i32 4, i1 false), !dbg !19
|
|
call void @llvm.dbg.declare(metadata i32* %local, metadata !20, metadata !17), !dbg !21
|
|
%1 = bitcast %struct.prog_src_register* %a to i32*, !dbg !21
|
|
%bf.load = load i32, i32* %1, align 4, !dbg !21
|
|
%bf.shl = shl i32 %bf.load, 15, !dbg !21
|
|
%bf.ashr = ashr i32 %bf.shl, 19, !dbg !21
|
|
store i32 %bf.ashr, i32* %local, align 4, !dbg !21
|
|
%2 = bitcast %struct.prog_src_register* %retval to i8*, !dbg !22
|
|
%3 = bitcast %struct.prog_src_register* %a to i8*, !dbg !22
|
|
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %2, i8* %3, i64 8, i32 4, i1 false), !dbg !22
|
|
%4 = bitcast %struct.prog_src_register* %retval to i64*, !dbg !22
|
|
%5 = load i64, i64* %4, align 1, !dbg !22
|
|
ret i64 %5, !dbg !22
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
|
|
|
; Function Attrs: nounwind
|
|
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) #2
|
|
|
|
; Function Attrs: nounwind
|
|
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #2
|
|
|
|
attributes #0 = { nounwind }
|
|
attributes #1 = { nounwind readnone }
|
|
attributes #2 = { nounwind }
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!13, !14}
|
|
!llvm.ident = !{!15}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.7.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
|
|
!1 = !DIFile(filename: "<stdin>", directory: "")
|
|
!2 = !{}
|
|
!3 = !{!4}
|
|
!4 = distinct !DISubprogram(name: "src_reg_for_float", line: 7, isLocal: false, isDefinition: true, isOptimized: false, scopeLine: 7, file: !5, scope: !6, type: !7, variables: !2)
|
|
!5 = !DIFile(filename: "pr22495.c", directory: "")
|
|
!6 = !DIFile(filename: "pr22495.c", directory: "")
|
|
!7 = !DISubroutineType(types: !8)
|
|
!8 = !{!9}
|
|
!9 = !DICompositeType(tag: DW_TAG_structure_type, name: "prog_src_register", line: 1, size: 64, align: 32, file: !5, elements: !10)
|
|
!10 = !{!11}
|
|
!11 = !DIDerivedType(tag: DW_TAG_member, name: "Index", line: 3, size: 13, align: 32, offset: 4, file: !5, scope: !9, baseType: !12)
|
|
!12 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!13 = !{i32 2, !"Dwarf Version", i32 4}
|
|
!14 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!15 = !{!"clang version 3.7.0 "}
|
|
!16 = !DILocalVariable(name: "a", line: 8, scope: !4, file: !6, type: !9)
|
|
!17 = !DIExpression()
|
|
!18 = !DILocation(line: 8, scope: !4)
|
|
!19 = !DILocation(line: 9, scope: !4)
|
|
!20 = !DILocalVariable(name: "local", line: 10, scope: !4, file: !6, type: !12)
|
|
!21 = !DILocation(line: 10, scope: !4)
|
|
!22 = !DILocation(line: 11, scope: !4)
|