| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -O3 -S | FileCheck --check-prefix=OLDPM %s |
| ; RUN: opt < %s -passes='default<O3>' -S | FileCheck --check-prefix=NEWPM %s |
| |
| target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" |
| target triple = "thumbv6m-none-none-eabi" |
| |
| ; Not only should we be able to to form memsets here, the original loops |
| ; should be deleted, too. |
| |
| ; Function Attrs: nounwind |
| define dso_local void @arm_fill_q7(i8 signext %value, i8* %pDst, i32 %blockSize) #0 { |
| ; OLDPM-LABEL: @arm_fill_q7( |
| ; OLDPM-NEXT: entry: |
| ; OLDPM-NEXT: [[CMP_NOT20:%.*]] = icmp ult i32 [[BLOCKSIZE:%.*]], 4 |
| ; OLDPM-NEXT: br i1 [[CMP_NOT20]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]] |
| ; OLDPM: while.body.preheader: |
| ; OLDPM-NEXT: [[TMP0:%.*]] = and i32 [[BLOCKSIZE]], -4 |
| ; OLDPM-NEXT: call void @llvm.memset.p0i8.i32(i8* align 1 [[PDST:%.*]], i8 [[VALUE:%.*]], i32 [[TMP0]], i1 false) |
| ; OLDPM-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, i8* [[PDST]], i32 [[TMP0]] |
| ; OLDPM-NEXT: br label [[WHILE_END]] |
| ; OLDPM: while.end: |
| ; OLDPM-NEXT: [[PDST_ADDR_0_LCSSA:%.*]] = phi i8* [ [[PDST]], [[ENTRY:%.*]] ], [ [[SCEVGEP]], [[WHILE_BODY_PREHEADER]] ] |
| ; OLDPM-NEXT: [[REM:%.*]] = and i32 [[BLOCKSIZE]], 3 |
| ; OLDPM-NEXT: [[CMP14_NOT17:%.*]] = icmp eq i32 [[REM]], 0 |
| ; OLDPM-NEXT: br i1 [[CMP14_NOT17]], label [[WHILE_END18:%.*]], label [[WHILE_BODY16_PREHEADER:%.*]] |
| ; OLDPM: while.body16.preheader: |
| ; OLDPM-NEXT: call void @llvm.memset.p0i8.i32(i8* align 1 [[PDST_ADDR_0_LCSSA]], i8 [[VALUE]], i32 [[REM]], i1 false) |
| ; OLDPM-NEXT: br label [[WHILE_END18]] |
| ; OLDPM: while.end18: |
| ; OLDPM-NEXT: ret void |
| ; |
| ; NEWPM-LABEL: @arm_fill_q7( |
| ; NEWPM-NEXT: entry: |
| ; NEWPM-NEXT: [[CMP_NOT17:%.*]] = icmp ult i32 [[BLOCKSIZE:%.*]], 4 |
| ; NEWPM-NEXT: br i1 [[CMP_NOT17]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]] |
| ; NEWPM: while.body.preheader: |
| ; NEWPM-NEXT: [[TMP0:%.*]] = and i32 [[BLOCKSIZE]], -4 |
| ; NEWPM-NEXT: call void @llvm.memset.p0i8.i32(i8* align 1 [[PDST:%.*]], i8 [[VALUE:%.*]], i32 [[TMP0]], i1 false) |
| ; NEWPM-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, i8* [[PDST]], i32 [[TMP0]] |
| ; NEWPM-NEXT: br label [[WHILE_END]] |
| ; NEWPM: while.end: |
| ; NEWPM-NEXT: [[PDST_ADDR_0_LCSSA:%.*]] = phi i8* [ [[PDST]], [[ENTRY:%.*]] ], [ [[SCEVGEP]], [[WHILE_BODY_PREHEADER]] ] |
| ; NEWPM-NEXT: [[REM:%.*]] = and i32 [[BLOCKSIZE]], 3 |
| ; NEWPM-NEXT: [[CMP14_NOT20:%.*]] = icmp eq i32 [[REM]], 0 |
| ; NEWPM-NEXT: br i1 [[CMP14_NOT20]], label [[WHILE_END18:%.*]], label [[WHILE_BODY16_PREHEADER:%.*]] |
| ; NEWPM: while.body16.preheader: |
| ; NEWPM-NEXT: call void @llvm.memset.p0i8.i32(i8* align 1 [[PDST_ADDR_0_LCSSA]], i8 [[VALUE]], i32 [[REM]], i1 false) |
| ; NEWPM-NEXT: br label [[WHILE_END18]] |
| ; NEWPM: while.end18: |
| ; NEWPM-NEXT: ret void |
| ; |
| entry: |
| %value.addr = alloca i8, align 1 |
| %pDst.addr = alloca i8*, align 4 |
| %blockSize.addr = alloca i32, align 4 |
| %blkCnt = alloca i32, align 4 |
| %packedValue = alloca i32, align 4 |
| store i8 %value, i8* %value.addr, align 1, !tbaa !3 |
| store i8* %pDst, i8** %pDst.addr, align 4, !tbaa !6 |
| store i32 %blockSize, i32* %blockSize.addr, align 4, !tbaa !8 |
| %0 = bitcast i32* %blkCnt to i8* |
| call void @llvm.lifetime.start.p0i8(i64 4, i8* %0) #3 |
| %1 = bitcast i32* %packedValue to i8* |
| call void @llvm.lifetime.start.p0i8(i64 4, i8* %1) #3 |
| %2 = load i8, i8* %value.addr, align 1, !tbaa !3 |
| %conv = sext i8 %2 to i32 |
| %shl = shl i32 %conv, 0 |
| %and = and i32 %shl, 255 |
| %3 = load i8, i8* %value.addr, align 1, !tbaa !3 |
| %conv1 = sext i8 %3 to i32 |
| %shl2 = shl i32 %conv1, 8 |
| %and3 = and i32 %shl2, 65280 |
| %or = or i32 %and, %and3 |
| %4 = load i8, i8* %value.addr, align 1, !tbaa !3 |
| %conv4 = sext i8 %4 to i32 |
| %shl5 = shl i32 %conv4, 16 |
| %and6 = and i32 %shl5, 16711680 |
| %or7 = or i32 %or, %and6 |
| %5 = load i8, i8* %value.addr, align 1, !tbaa !3 |
| %conv8 = sext i8 %5 to i32 |
| %shl9 = shl i32 %conv8, 24 |
| %and10 = and i32 %shl9, -16777216 |
| %or11 = or i32 %or7, %and10 |
| store i32 %or11, i32* %packedValue, align 4, !tbaa !8 |
| %6 = load i32, i32* %blockSize.addr, align 4, !tbaa !8 |
| %shr = lshr i32 %6, 2 |
| store i32 %shr, i32* %blkCnt, align 4, !tbaa !8 |
| br label %while.cond |
| |
| while.cond: ; preds = %while.body, %entry |
| %7 = load i32, i32* %blkCnt, align 4, !tbaa !8 |
| %cmp = icmp ugt i32 %7, 0 |
| br i1 %cmp, label %while.body, label %while.end |
| |
| while.body: ; preds = %while.cond |
| %8 = load i32, i32* %packedValue, align 4, !tbaa !8 |
| call void @write_q7x4_ia(i8** %pDst.addr, i32 %8) |
| %9 = load i32, i32* %blkCnt, align 4, !tbaa !8 |
| %dec = add i32 %9, -1 |
| store i32 %dec, i32* %blkCnt, align 4, !tbaa !8 |
| br label %while.cond, !llvm.loop !10 |
| |
| while.end: ; preds = %while.cond |
| %10 = load i32, i32* %blockSize.addr, align 4, !tbaa !8 |
| %rem = urem i32 %10, 4 |
| store i32 %rem, i32* %blkCnt, align 4, !tbaa !8 |
| br label %while.cond13 |
| |
| while.cond13: ; preds = %while.body16, %while.end |
| %11 = load i32, i32* %blkCnt, align 4, !tbaa !8 |
| %cmp14 = icmp ugt i32 %11, 0 |
| br i1 %cmp14, label %while.body16, label %while.end18 |
| |
| while.body16: ; preds = %while.cond13 |
| %12 = load i8, i8* %value.addr, align 1, !tbaa !3 |
| %13 = load i8*, i8** %pDst.addr, align 4, !tbaa !6 |
| %incdec.ptr = getelementptr inbounds i8, i8* %13, i32 1 |
| store i8* %incdec.ptr, i8** %pDst.addr, align 4, !tbaa !6 |
| store i8 %12, i8* %13, align 1, !tbaa !3 |
| %14 = load i32, i32* %blkCnt, align 4, !tbaa !8 |
| %dec17 = add i32 %14, -1 |
| store i32 %dec17, i32* %blkCnt, align 4, !tbaa !8 |
| br label %while.cond13, !llvm.loop !12 |
| |
| while.end18: ; preds = %while.cond13 |
| %15 = bitcast i32* %packedValue to i8* |
| call void @llvm.lifetime.end.p0i8(i64 4, i8* %15) #3 |
| %16 = bitcast i32* %blkCnt to i8* |
| call void @llvm.lifetime.end.p0i8(i64 4, i8* %16) #3 |
| ret void |
| } |
| |
| ; Function Attrs: argmemonly nofree nosync nounwind willreturn |
| declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #1 |
| |
| ; Function Attrs: alwaysinline nounwind |
| define internal void @write_q7x4_ia(i8** %pQ7, i32 %value) #2 { |
| entry: |
| %pQ7.addr = alloca i8**, align 4 |
| %value.addr = alloca i32, align 4 |
| %val = alloca i32, align 4 |
| store i8** %pQ7, i8*** %pQ7.addr, align 4, !tbaa !6 |
| store i32 %value, i32* %value.addr, align 4, !tbaa !8 |
| %0 = bitcast i32* %val to i8* |
| call void @llvm.lifetime.start.p0i8(i64 4, i8* %0) #3 |
| %1 = load i32, i32* %value.addr, align 4, !tbaa !8 |
| store i32 %1, i32* %val, align 4, !tbaa !8 |
| %2 = load i32, i32* %val, align 4, !tbaa !8 |
| %and = and i32 %2, 255 |
| %conv = trunc i32 %and to i8 |
| %3 = load i8**, i8*** %pQ7.addr, align 4, !tbaa !6 |
| %4 = load i8*, i8** %3, align 4, !tbaa !6 |
| %arrayidx = getelementptr inbounds i8, i8* %4, i32 0 |
| store i8 %conv, i8* %arrayidx, align 1, !tbaa !3 |
| %5 = load i32, i32* %val, align 4, !tbaa !8 |
| %shr = ashr i32 %5, 8 |
| %and1 = and i32 %shr, 255 |
| %conv2 = trunc i32 %and1 to i8 |
| %6 = load i8**, i8*** %pQ7.addr, align 4, !tbaa !6 |
| %7 = load i8*, i8** %6, align 4, !tbaa !6 |
| %arrayidx3 = getelementptr inbounds i8, i8* %7, i32 1 |
| store i8 %conv2, i8* %arrayidx3, align 1, !tbaa !3 |
| %8 = load i32, i32* %val, align 4, !tbaa !8 |
| %shr4 = ashr i32 %8, 16 |
| %and5 = and i32 %shr4, 255 |
| %conv6 = trunc i32 %and5 to i8 |
| %9 = load i8**, i8*** %pQ7.addr, align 4, !tbaa !6 |
| %10 = load i8*, i8** %9, align 4, !tbaa !6 |
| %arrayidx7 = getelementptr inbounds i8, i8* %10, i32 2 |
| store i8 %conv6, i8* %arrayidx7, align 1, !tbaa !3 |
| %11 = load i32, i32* %val, align 4, !tbaa !8 |
| %shr8 = ashr i32 %11, 24 |
| %and9 = and i32 %shr8, 255 |
| %conv10 = trunc i32 %and9 to i8 |
| %12 = load i8**, i8*** %pQ7.addr, align 4, !tbaa !6 |
| %13 = load i8*, i8** %12, align 4, !tbaa !6 |
| %arrayidx11 = getelementptr inbounds i8, i8* %13, i32 3 |
| store i8 %conv10, i8* %arrayidx11, align 1, !tbaa !3 |
| %14 = load i8**, i8*** %pQ7.addr, align 4, !tbaa !6 |
| %15 = load i8*, i8** %14, align 4, !tbaa !6 |
| %add.ptr = getelementptr inbounds i8, i8* %15, i32 4 |
| store i8* %add.ptr, i8** %14, align 4, !tbaa !6 |
| %16 = bitcast i32* %val to i8* |
| call void @llvm.lifetime.end.p0i8(i64 4, i8* %16) #3 |
| ret void |
| } |
| |
| ; Function Attrs: argmemonly nofree nosync nounwind willreturn |
| declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #1 |
| |
| attributes #0 = { nounwind "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="cortex-m0plus" "target-features"="+armv6-m,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-dotprod,-dsp,-fp16fml,-fullfp16,-hwdiv,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-ras,-sb,-sha2" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { argmemonly nofree nosync nounwind willreturn } |
| attributes #2 = { alwaysinline nounwind "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="cortex-m0plus" "target-features"="+armv6-m,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-dotprod,-dsp,-fp16fml,-fullfp16,-hwdiv,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-ras,-sb,-sha2" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #3 = { nounwind } |
| |
| !llvm.module.flags = !{!0, !1} |
| !llvm.ident = !{!2} |
| |
| !0 = !{i32 1, !"wchar_size", i32 4} |
| !1 = !{i32 1, !"min_enum_size", i32 4} |
| !2 = !{!"clang version 12.0.0 (https://github.com/llvm/llvm-project.git 07f234be1ccbce131704f580aa3f117083a887f7)"} |
| !3 = !{!4, !4, i64 0} |
| !4 = !{!"omnipotent char", !5, i64 0} |
| !5 = !{!"Simple C/C++ TBAA"} |
| !6 = !{!7, !7, i64 0} |
| !7 = !{!"any pointer", !4, i64 0} |
| !8 = !{!9, !9, i64 0} |
| !9 = !{!"int", !4, i64 0} |
| !10 = distinct !{!10, !11} |
| !11 = !{!"llvm.loop.mustprogress"} |
| !12 = distinct !{!12, !11} |