mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 11:42:57 +01:00
d654e7d40c
Enable enableMultipleCopyHints() on X86. Original Patch by @jonpa: While enabling the mischeduler for SystemZ, it was discovered that for some reason a test needed one extra seemingly needless COPY (test/CodeGen/SystemZ/call-03.ll). The handling for that is resulted in this patch, which improves the register coalescing by providing not just one copy hint, but a sorted list of copy hints. On SystemZ, this gives ~12500 less register moves on SPEC, as well as marginally less spilling. Instead of improving just the SystemZ backend, the improvement has been implemented in common-code (calculateSpillWeightAndHint(). This gives a lot of test failures, but since this should be a general improvement I hope that the involved targets will help and review the test updates. Differential Revision: https://reviews.llvm.org/D38128 llvm-svn: 342578
102 lines
5.3 KiB
LLVM
102 lines
5.3 KiB
LLVM
; RUN: llc %s -filetype=obj -o - | llvm-dwarfdump -v - | FileCheck %s
|
|
;
|
|
; // Compile with -O1
|
|
; typedef struct {
|
|
; int a;
|
|
; int b;
|
|
; } Inner;
|
|
;
|
|
; typedef struct {
|
|
; Inner inner[2];
|
|
; } Outer;
|
|
;
|
|
; int foo(Outer outer) {
|
|
; Inner i1 = outer.inner[1];
|
|
; return i1.a;
|
|
; }
|
|
;
|
|
; CHECK: DW_TAG_formal_parameter [3]
|
|
; CHECK-NEXT: DW_AT_location [DW_FORM_data4] (
|
|
; CHECK-NEXT: [0x0000000000000000, 0x0000000000000007): DW_OP_reg5 RDI, DW_OP_piece 0x8, DW_OP_piece 0x4, DW_OP_reg4 RSI, DW_OP_piece 0x4
|
|
; CHECK-NEXT: [0x0000000000000007, 0x0000000000000007): DW_OP_reg5 RDI, DW_OP_piece 0x8, DW_OP_piece 0x4, DW_OP_reg0 RAX, DW_OP_piece 0x4)
|
|
; CHECK-NEXT: DW_AT_name {{.*}}"outer"
|
|
; CHECK: DW_TAG_variable
|
|
; CHECK-NEXT: DW_AT_location [DW_FORM_data4] (0x00000044
|
|
; CHECK-NEXT: [0x0000000000000007, 0x0000000000000007): DW_OP_reg0 RAX, DW_OP_piece 0x4)
|
|
; CHECK-NEXT: "i1"
|
|
|
|
; ModuleID = '/Volumes/Data/llvm/test/DebugInfo/X86/sroasplit-2.ll'
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.9.0"
|
|
|
|
; Function Attrs: nounwind ssp uwtable
|
|
define i32 @foo(i64 %outer.coerce0, i64 %outer.coerce1) #0 !dbg !4 {
|
|
call void @llvm.dbg.value(metadata i64 %outer.coerce0, metadata !24, metadata !25), !dbg !26
|
|
call void @llvm.dbg.declare(metadata !{null}, metadata !27, metadata !28), !dbg !26
|
|
call void @llvm.dbg.value(metadata i64 %outer.coerce1, metadata !29, metadata !30), !dbg !26
|
|
call void @llvm.dbg.declare(metadata !{null}, metadata !31, metadata !32), !dbg !26
|
|
; The 'trunc' generates no extra code, thus i1 is visible throughout its scope.
|
|
%outer.sroa.1.8.extract.trunc = trunc i64 %outer.coerce1 to i32, !dbg !33
|
|
call void @llvm.dbg.value(metadata i32 %outer.sroa.1.8.extract.trunc, metadata !34, metadata !35), !dbg !33
|
|
%outer.sroa.1.12.extract.shift = lshr i64 %outer.coerce1, 32, !dbg !33
|
|
%outer.sroa.1.12.extract.trunc = trunc i64 %outer.sroa.1.12.extract.shift to i32, !dbg !33
|
|
call void @llvm.dbg.value(metadata i64 %outer.sroa.1.12.extract.shift, metadata !34, metadata !35), !dbg !33
|
|
call void @llvm.dbg.value(metadata i32 %outer.sroa.1.12.extract.trunc, metadata !34, metadata !35), !dbg !33
|
|
call void @llvm.dbg.declare(metadata !{null}, metadata !34, metadata !35), !dbg !33
|
|
ret i32 %outer.sroa.1.8.extract.trunc, !dbg !36
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
|
|
|
; Function Attrs: nounwind
|
|
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i1) #2
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata) #1
|
|
|
|
attributes #0 = { nounwind ssp uwtable "no-frame-pointer-elim"="true" }
|
|
attributes #1 = { nounwind readnone }
|
|
attributes #2 = { nounwind }
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!21, !22}
|
|
!llvm.ident = !{!23}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
|
|
!1 = !DIFile(filename: "sroasplit-2.c", directory: "")
|
|
!2 = !{}
|
|
!4 = distinct !DISubprogram(name: "foo", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 10, file: !1, scope: !5, type: !6, retainedNodes: !2)
|
|
!5 = !DIFile(filename: "sroasplit-2.c", directory: "")
|
|
!6 = !DISubroutineType(types: !7)
|
|
!7 = !{!8, !9}
|
|
!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!9 = !DIDerivedType(tag: DW_TAG_typedef, name: "Outer", line: 8, file: !1, baseType: !10)
|
|
!10 = !DICompositeType(tag: DW_TAG_structure_type, line: 6, size: 128, align: 32, file: !1, elements: !11)
|
|
!11 = !{!12}
|
|
!12 = !DIDerivedType(tag: DW_TAG_member, name: "inner", line: 7, size: 128, align: 32, file: !1, scope: !10, baseType: !13)
|
|
!13 = !DICompositeType(tag: DW_TAG_array_type, size: 128, align: 32, baseType: !14, elements: !19)
|
|
!14 = !DIDerivedType(tag: DW_TAG_typedef, name: "Inner", line: 4, file: !1, baseType: !15)
|
|
!15 = !DICompositeType(tag: DW_TAG_structure_type, line: 1, size: 64, align: 32, file: !1, elements: !16)
|
|
!16 = !{!17, !18}
|
|
!17 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !1, scope: !15, baseType: !8)
|
|
!18 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 3, size: 32, align: 32, offset: 32, file: !1, scope: !15, baseType: !8)
|
|
!19 = !{!20}
|
|
!20 = !DISubrange(count: 2)
|
|
!21 = !{i32 2, !"Dwarf Version", i32 2}
|
|
!22 = !{i32 1, !"Debug Info Version", i32 3}
|
|
!23 = !{!"clang version 3.5.0 "}
|
|
!24 = !DILocalVariable(name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
|
|
!25 = !DIExpression(DW_OP_LLVM_fragment, 0, 64)
|
|
!26 = !DILocation(line: 10, scope: !4)
|
|
!27 = !DILocalVariable(name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
|
|
!28 = !DIExpression(DW_OP_LLVM_fragment, 64, 64)
|
|
!29 = !DILocalVariable(name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
|
|
!30 = !DIExpression(DW_OP_LLVM_fragment, 96, 32)
|
|
!31 = !DILocalVariable(name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
|
|
!32 = !DIExpression(DW_OP_LLVM_fragment, 64, 32)
|
|
!33 = !DILocation(line: 11, scope: !4)
|
|
!34 = !DILocalVariable(name: "i1", line: 11, scope: !4, file: !5, type: !14)
|
|
!35 = !DIExpression(DW_OP_LLVM_fragment, 0, 32)
|
|
!36 = !DILocation(line: 12, scope: !4)
|