mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
23c462a8b5
This allows targets to make more decisions about reserved registers after isel. For example, now it should be certain there are calls or stack objects in the frame or not, which could have been introduced by legalization. Patch by Matthias Braun llvm-svn: 363757
170 lines
8.3 KiB
LLVM
170 lines
8.3 KiB
LLVM
; RUN: llc -start-after=codegenprepare -stop-before finalize-isel -o - %s | FileCheck %s
|
|
|
|
; This test case was generated from the following phi-split.c program,
|
|
; using: clang phi-split.c -g -O1 -S -o - --target=i386 -emit-llvm
|
|
; --------------------------------------
|
|
; long long end = 10;
|
|
;
|
|
; int main() {
|
|
; long long x = 9;
|
|
; long long y = 13;
|
|
; for (long long u = 0; u < end; ++u) {
|
|
; x += y;
|
|
; y = y * 3;
|
|
; }
|
|
;
|
|
; volatile long long arr[80];
|
|
; for (long long q = 0; q < 64; ++q) {
|
|
; arr[q] = q + 3;
|
|
; }
|
|
;
|
|
; return x;
|
|
; }
|
|
; --------------------------------------
|
|
;
|
|
|
|
; ModuleID = 'phi-split.c'
|
|
source_filename = "phi-split.c"
|
|
target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"
|
|
target triple = "i386"
|
|
|
|
@end = dso_local local_unnamed_addr global i64 10, align 8, !dbg !0
|
|
|
|
; Function Attrs: nounwind
|
|
define dso_local i32 @main() local_unnamed_addr #0 !dbg !12 {
|
|
; CHECK-LABEL: name: main
|
|
entry:
|
|
%arr = alloca [80 x i64], align 8
|
|
call void @llvm.dbg.value(metadata i64 9, metadata !17, metadata !DIExpression()), !dbg !28
|
|
call void @llvm.dbg.value(metadata i64 13, metadata !18, metadata !DIExpression()), !dbg !29
|
|
call void @llvm.dbg.value(metadata i64 0, metadata !19, metadata !DIExpression()), !dbg !30
|
|
%0 = load i64, i64* @end, align 8, !dbg !31
|
|
%cmp20 = icmp sgt i64 %0, 0, !dbg !37
|
|
br i1 %cmp20, label %for.body.lr.ph, label %for.cond.cleanup, !dbg !38
|
|
|
|
for.body.lr.ph: ; preds = %entry
|
|
%1 = load i64, i64* @end, align 8
|
|
br label %for.body, !dbg !38
|
|
|
|
for.cond.cleanup.loopexit: ; preds = %for.body
|
|
%extract.t = trunc i64 %add to i32, !dbg !38
|
|
br label %for.cond.cleanup, !dbg !39
|
|
|
|
for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
|
|
%x.0.lcssa.off0 = phi i32 [ 9, %entry ], [ %extract.t, %for.cond.cleanup.loopexit ]
|
|
call void @llvm.dbg.value(metadata i64 undef, metadata !17, metadata !DIExpression()), !dbg !28
|
|
%2 = bitcast [80 x i64]* %arr to i8*, !dbg !39
|
|
call void @llvm.dbg.value(metadata i64 0, metadata !26, metadata !DIExpression()), !dbg !41
|
|
br label %for.body4, !dbg !42
|
|
|
|
for.body: ; preds = %for.body.lr.ph, %for.body
|
|
; CHECK-LABEL: bb.{{.*}}.for.body:
|
|
; CHECK: [[REG2:%[0-9]+]]:gr32 = PHI
|
|
; CHECK-NEXT: [[REG3:%[0-9]+]]:gr32 = PHI
|
|
; CHECK-NEXT: [[REG4:%[0-9]+]]:gr32 = PHI
|
|
; CHECK-NEXT: [[REG5:%[0-9]+]]:gr32_nosp = PHI
|
|
; CHECK-NEXT: [[REG6:%[0-9]+]]:gr32 = PHI
|
|
; CHECK-NEXT: [[REG7:%[0-9]+]]:gr32 = PHI
|
|
; CHECK-NEXT: DBG_VALUE [[REG2]], $noreg, !19, !DIExpression(DW_OP_LLVM_fragment, 0, 32)
|
|
; CHECK-NEXT: DBG_VALUE [[REG3]], $noreg, !19, !DIExpression(DW_OP_LLVM_fragment, 32, 32)
|
|
; CHECK-NEXT: DBG_VALUE [[REG4]], $noreg, !18, !DIExpression(DW_OP_LLVM_fragment, 0, 32)
|
|
; CHECK-NEXT: DBG_VALUE [[REG5]], $noreg, !18, !DIExpression(DW_OP_LLVM_fragment, 32, 32)
|
|
; CHECK-NEXT: DBG_VALUE [[REG6]], $noreg, !17, !DIExpression(DW_OP_LLVM_fragment, 0, 32)
|
|
; CHECK-NEXT: DBG_VALUE [[REG7]], $noreg, !17, !DIExpression(DW_OP_LLVM_fragment, 32, 32)
|
|
%u.023 = phi i64 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
|
|
%y.022 = phi i64 [ 13, %for.body.lr.ph ], [ %mul, %for.body ]
|
|
%x.021 = phi i64 [ 9, %for.body.lr.ph ], [ %add, %for.body ]
|
|
call void @llvm.dbg.value(metadata i64 %u.023, metadata !19, metadata !DIExpression()), !dbg !30
|
|
call void @llvm.dbg.value(metadata i64 %y.022, metadata !18, metadata !DIExpression()), !dbg !29
|
|
call void @llvm.dbg.value(metadata i64 %x.021, metadata !17, metadata !DIExpression()), !dbg !28
|
|
%add = add nuw nsw i64 %y.022, %x.021, !dbg !43
|
|
%mul = mul nsw i64 %y.022, 3, !dbg !45
|
|
%inc = add nuw nsw i64 %u.023, 1, !dbg !46
|
|
call void @llvm.dbg.value(metadata i64 %inc, metadata !19, metadata !DIExpression()), !dbg !30
|
|
call void @llvm.dbg.value(metadata i64 %mul, metadata !18, metadata !DIExpression()), !dbg !29
|
|
call void @llvm.dbg.value(metadata i64 %add, metadata !17, metadata !DIExpression()), !dbg !28
|
|
%cmp = icmp slt i64 %inc, %1, !dbg !37
|
|
br i1 %cmp, label %for.body, label %for.cond.cleanup.loopexit, !dbg !38, !llvm.loop !47
|
|
|
|
for.cond.cleanup3: ; preds = %for.body4
|
|
ret i32 %x.0.lcssa.off0, !dbg !50
|
|
|
|
for.body4: ; preds = %for.cond.cleanup, %for.body4
|
|
%q.019 = phi i64 [ 0, %for.cond.cleanup ], [ %inc7, %for.body4 ]
|
|
call void @llvm.dbg.value(metadata i64 %q.019, metadata !26, metadata !DIExpression()), !dbg !41
|
|
%add5 = add nuw nsw i64 %q.019, 3, !dbg !51
|
|
%idxprom = trunc i64 %q.019 to i32, !dbg !54
|
|
%arrayidx = getelementptr inbounds [80 x i64], [80 x i64]* %arr, i32 0, i32 %idxprom, !dbg !54
|
|
store volatile i64 %add5, i64* %arrayidx, align 8, !dbg !55
|
|
%inc7 = add nuw nsw i64 %q.019, 1, !dbg !56
|
|
call void @llvm.dbg.value(metadata i64 %inc7, metadata !26, metadata !DIExpression()), !dbg !41
|
|
%cmp2 = icmp ult i64 %inc7, 64, !dbg !57
|
|
br i1 %cmp2, label %for.body4, label %for.cond.cleanup3, !dbg !42, !llvm.loop !58
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone speculatable
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata) #1
|
|
|
|
attributes #0 = { nounwind }
|
|
attributes #1 = { nounwind readnone speculatable }
|
|
|
|
!llvm.dbg.cu = !{!2}
|
|
!llvm.module.flags = !{!7, !8, !9, !10}
|
|
!llvm.ident = !{!11}
|
|
|
|
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
|
|
!1 = distinct !DIGlobalVariable(name: "end", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
|
|
!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 7.0.0 (x)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
|
|
!3 = !DIFile(filename: "phi-split.c", directory: "")
|
|
!4 = !{}
|
|
!5 = !{!0}
|
|
!6 = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed)
|
|
!7 = !{i32 1, !"NumRegisterParameters", i32 0}
|
|
!8 = !{i32 2, !"Dwarf Version", i32 4}
|
|
!9 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!10 = !{i32 1, !"wchar_size", i32 4}
|
|
!11 = !{!"clang version 7.0.0 (x)"}
|
|
!12 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 3, type: !13, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !2, retainedNodes: !16)
|
|
!13 = !DISubroutineType(types: !14)
|
|
!14 = !{!15}
|
|
!15 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
|
|
!16 = !{!17, !18, !19, !21, !26}
|
|
!17 = !DILocalVariable(name: "x", scope: !12, file: !3, line: 4, type: !6)
|
|
!18 = !DILocalVariable(name: "y", scope: !12, file: !3, line: 5, type: !6)
|
|
!19 = !DILocalVariable(name: "u", scope: !20, file: !3, line: 6, type: !6)
|
|
!20 = distinct !DILexicalBlock(scope: !12, file: !3, line: 6, column: 3)
|
|
!21 = !DILocalVariable(name: "arr", scope: !12, file: !3, line: 11, type: !22)
|
|
!22 = !DICompositeType(tag: DW_TAG_array_type, baseType: !23, size: 5120, elements: !24)
|
|
!23 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !6)
|
|
!24 = !{!25}
|
|
!25 = !DISubrange(count: 80)
|
|
!26 = !DILocalVariable(name: "q", scope: !27, file: !3, line: 12, type: !6)
|
|
!27 = distinct !DILexicalBlock(scope: !12, file: !3, line: 12, column: 3)
|
|
!28 = !DILocation(line: 4, column: 13, scope: !12)
|
|
!29 = !DILocation(line: 5, column: 13, scope: !12)
|
|
!30 = !DILocation(line: 6, column: 18, scope: !20)
|
|
!31 = !DILocation(line: 6, column: 29, scope: !32)
|
|
!32 = distinct !DILexicalBlock(scope: !20, file: !3, line: 6, column: 3)
|
|
!37 = !DILocation(line: 6, column: 27, scope: !32)
|
|
!38 = !DILocation(line: 6, column: 3, scope: !20)
|
|
!39 = !DILocation(line: 11, column: 3, scope: !12)
|
|
!40 = !DILocation(line: 11, column: 22, scope: !12)
|
|
!41 = !DILocation(line: 12, column: 18, scope: !27)
|
|
!42 = !DILocation(line: 12, column: 3, scope: !27)
|
|
!43 = !DILocation(line: 7, column: 7, scope: !44)
|
|
!44 = distinct !DILexicalBlock(scope: !32, file: !3, line: 6, column: 39)
|
|
!45 = !DILocation(line: 8, column: 11, scope: !44)
|
|
!46 = !DILocation(line: 6, column: 34, scope: !32)
|
|
!47 = distinct !{!47, !38, !48}
|
|
!48 = !DILocation(line: 9, column: 3, scope: !20)
|
|
!50 = !DILocation(line: 16, column: 3, scope: !12)
|
|
!51 = !DILocation(line: 13, column: 16, scope: !52)
|
|
!52 = distinct !DILexicalBlock(scope: !53, file: !3, line: 12, column: 38)
|
|
!53 = distinct !DILexicalBlock(scope: !27, file: !3, line: 12, column: 3)
|
|
!54 = !DILocation(line: 13, column: 5, scope: !52)
|
|
!55 = !DILocation(line: 13, column: 12, scope: !52)
|
|
!56 = !DILocation(line: 12, column: 33, scope: !53)
|
|
!57 = !DILocation(line: 12, column: 27, scope: !53)
|
|
!58 = distinct !{!58, !42, !59}
|
|
!59 = !DILocation(line: 14, column: 3, scope: !27)
|