6699029b67
We tend to assume that the AA pipeline is by default the default AA pipeline and it's confusing when it's empty instead. PR48779 Initially reverted due to BasicAA running analyses in an unspecified order (multiple function calls as parameters), fixed by fetching analyses before the call to construct BasicAA. Reviewed By: asbirlea Differential Revision: https://reviews.llvm.org/D95117
213 lines
10 KiB
LLVM
213 lines
10 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -O3 -S | FileCheck --check-prefix=OLDPM %s
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; RUN: opt < %s -passes='default<O3>' -S | FileCheck --check-prefix=NEWPM %s
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target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "thumbv6m-none-none-eabi"
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; Not only should we be able to to form memsets here, the original loops
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; should be deleted, too.
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; Function Attrs: nounwind
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define dso_local void @arm_fill_q7(i8 signext %value, i8* %pDst, i32 %blockSize) #0 {
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; OLDPM-LABEL: @arm_fill_q7(
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; OLDPM-NEXT: entry:
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; OLDPM-NEXT: [[CMP_NOT20:%.*]] = icmp ult i32 [[BLOCKSIZE:%.*]], 4
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; OLDPM-NEXT: br i1 [[CMP_NOT20]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]]
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; OLDPM: while.body.preheader:
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; OLDPM-NEXT: [[TMP0:%.*]] = and i32 [[BLOCKSIZE]], -4
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; OLDPM-NEXT: call void @llvm.memset.p0i8.i32(i8* align 1 [[PDST:%.*]], i8 [[VALUE:%.*]], i32 [[TMP0]], i1 false)
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; OLDPM-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, i8* [[PDST]], i32 [[TMP0]]
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; OLDPM-NEXT: br label [[WHILE_END]]
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; OLDPM: while.end:
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; OLDPM-NEXT: [[PDST_ADDR_0_LCSSA:%.*]] = phi i8* [ [[PDST]], [[ENTRY:%.*]] ], [ [[SCEVGEP]], [[WHILE_BODY_PREHEADER]] ]
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; OLDPM-NEXT: [[REM:%.*]] = and i32 [[BLOCKSIZE]], 3
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; OLDPM-NEXT: [[CMP14_NOT17:%.*]] = icmp eq i32 [[REM]], 0
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; OLDPM-NEXT: br i1 [[CMP14_NOT17]], label [[WHILE_END18:%.*]], label [[WHILE_BODY16_PREHEADER:%.*]]
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; OLDPM: while.body16.preheader:
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; OLDPM-NEXT: call void @llvm.memset.p0i8.i32(i8* align 1 [[PDST_ADDR_0_LCSSA]], i8 [[VALUE]], i32 [[REM]], i1 false)
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; OLDPM-NEXT: br label [[WHILE_END18]]
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; OLDPM: while.end18:
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; OLDPM-NEXT: ret void
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;
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; NEWPM-LABEL: @arm_fill_q7(
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; NEWPM-NEXT: entry:
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; NEWPM-NEXT: [[CMP_NOT17:%.*]] = icmp ult i32 [[BLOCKSIZE:%.*]], 4
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; NEWPM-NEXT: br i1 [[CMP_NOT17]], label [[WHILE_END:%.*]], label [[WHILE_BODY_PREHEADER:%.*]]
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; NEWPM: while.body.preheader:
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; NEWPM-NEXT: [[TMP0:%.*]] = and i32 [[BLOCKSIZE]], -4
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; NEWPM-NEXT: call void @llvm.memset.p0i8.i32(i8* align 1 [[PDST:%.*]], i8 [[VALUE:%.*]], i32 [[TMP0]], i1 false)
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; NEWPM-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, i8* [[PDST]], i32 [[TMP0]]
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; NEWPM-NEXT: br label [[WHILE_END]]
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; NEWPM: while.end:
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; NEWPM-NEXT: [[PDST_ADDR_0_LCSSA:%.*]] = phi i8* [ [[PDST]], [[ENTRY:%.*]] ], [ [[SCEVGEP]], [[WHILE_BODY_PREHEADER]] ]
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; NEWPM-NEXT: [[REM:%.*]] = and i32 [[BLOCKSIZE]], 3
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; NEWPM-NEXT: [[CMP14_NOT20:%.*]] = icmp eq i32 [[REM]], 0
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; NEWPM-NEXT: br i1 [[CMP14_NOT20]], label [[WHILE_END18:%.*]], label [[WHILE_BODY16_PREHEADER:%.*]]
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; NEWPM: while.body16.preheader:
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; NEWPM-NEXT: call void @llvm.memset.p0i8.i32(i8* align 1 [[PDST_ADDR_0_LCSSA]], i8 [[VALUE]], i32 [[REM]], i1 false)
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; NEWPM-NEXT: br label [[WHILE_END18]]
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; NEWPM: while.end18:
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; NEWPM-NEXT: ret void
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;
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entry:
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%value.addr = alloca i8, align 1
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%pDst.addr = alloca i8*, align 4
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%blockSize.addr = alloca i32, align 4
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%blkCnt = alloca i32, align 4
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%packedValue = alloca i32, align 4
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store i8 %value, i8* %value.addr, align 1, !tbaa !3
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store i8* %pDst, i8** %pDst.addr, align 4, !tbaa !6
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store i32 %blockSize, i32* %blockSize.addr, align 4, !tbaa !8
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%0 = bitcast i32* %blkCnt to i8*
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call void @llvm.lifetime.start.p0i8(i64 4, i8* %0) #3
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%1 = bitcast i32* %packedValue to i8*
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call void @llvm.lifetime.start.p0i8(i64 4, i8* %1) #3
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%2 = load i8, i8* %value.addr, align 1, !tbaa !3
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%conv = sext i8 %2 to i32
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%shl = shl i32 %conv, 0
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%and = and i32 %shl, 255
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%3 = load i8, i8* %value.addr, align 1, !tbaa !3
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%conv1 = sext i8 %3 to i32
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%shl2 = shl i32 %conv1, 8
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%and3 = and i32 %shl2, 65280
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%or = or i32 %and, %and3
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%4 = load i8, i8* %value.addr, align 1, !tbaa !3
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%conv4 = sext i8 %4 to i32
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%shl5 = shl i32 %conv4, 16
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%and6 = and i32 %shl5, 16711680
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%or7 = or i32 %or, %and6
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%5 = load i8, i8* %value.addr, align 1, !tbaa !3
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%conv8 = sext i8 %5 to i32
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%shl9 = shl i32 %conv8, 24
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%and10 = and i32 %shl9, -16777216
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%or11 = or i32 %or7, %and10
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store i32 %or11, i32* %packedValue, align 4, !tbaa !8
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%6 = load i32, i32* %blockSize.addr, align 4, !tbaa !8
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%shr = lshr i32 %6, 2
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store i32 %shr, i32* %blkCnt, align 4, !tbaa !8
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br label %while.cond
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while.cond: ; preds = %while.body, %entry
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%7 = load i32, i32* %blkCnt, align 4, !tbaa !8
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%cmp = icmp ugt i32 %7, 0
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br i1 %cmp, label %while.body, label %while.end
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while.body: ; preds = %while.cond
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%8 = load i32, i32* %packedValue, align 4, !tbaa !8
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call void @write_q7x4_ia(i8** %pDst.addr, i32 %8)
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%9 = load i32, i32* %blkCnt, align 4, !tbaa !8
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%dec = add i32 %9, -1
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store i32 %dec, i32* %blkCnt, align 4, !tbaa !8
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br label %while.cond, !llvm.loop !10
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while.end: ; preds = %while.cond
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%10 = load i32, i32* %blockSize.addr, align 4, !tbaa !8
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%rem = urem i32 %10, 4
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store i32 %rem, i32* %blkCnt, align 4, !tbaa !8
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br label %while.cond13
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while.cond13: ; preds = %while.body16, %while.end
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%11 = load i32, i32* %blkCnt, align 4, !tbaa !8
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%cmp14 = icmp ugt i32 %11, 0
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br i1 %cmp14, label %while.body16, label %while.end18
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while.body16: ; preds = %while.cond13
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%12 = load i8, i8* %value.addr, align 1, !tbaa !3
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%13 = load i8*, i8** %pDst.addr, align 4, !tbaa !6
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%incdec.ptr = getelementptr inbounds i8, i8* %13, i32 1
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store i8* %incdec.ptr, i8** %pDst.addr, align 4, !tbaa !6
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store i8 %12, i8* %13, align 1, !tbaa !3
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%14 = load i32, i32* %blkCnt, align 4, !tbaa !8
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%dec17 = add i32 %14, -1
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store i32 %dec17, i32* %blkCnt, align 4, !tbaa !8
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br label %while.cond13, !llvm.loop !12
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while.end18: ; preds = %while.cond13
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%15 = bitcast i32* %packedValue to i8*
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call void @llvm.lifetime.end.p0i8(i64 4, i8* %15) #3
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%16 = bitcast i32* %blkCnt to i8*
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call void @llvm.lifetime.end.p0i8(i64 4, i8* %16) #3
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ret void
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}
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; Function Attrs: argmemonly nofree nosync nounwind willreturn
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declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #1
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; Function Attrs: alwaysinline nounwind
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define internal void @write_q7x4_ia(i8** %pQ7, i32 %value) #2 {
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entry:
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%pQ7.addr = alloca i8**, align 4
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%value.addr = alloca i32, align 4
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%val = alloca i32, align 4
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store i8** %pQ7, i8*** %pQ7.addr, align 4, !tbaa !6
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store i32 %value, i32* %value.addr, align 4, !tbaa !8
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%0 = bitcast i32* %val to i8*
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call void @llvm.lifetime.start.p0i8(i64 4, i8* %0) #3
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%1 = load i32, i32* %value.addr, align 4, !tbaa !8
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store i32 %1, i32* %val, align 4, !tbaa !8
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%2 = load i32, i32* %val, align 4, !tbaa !8
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%and = and i32 %2, 255
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%conv = trunc i32 %and to i8
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%3 = load i8**, i8*** %pQ7.addr, align 4, !tbaa !6
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%4 = load i8*, i8** %3, align 4, !tbaa !6
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%arrayidx = getelementptr inbounds i8, i8* %4, i32 0
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store i8 %conv, i8* %arrayidx, align 1, !tbaa !3
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%5 = load i32, i32* %val, align 4, !tbaa !8
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%shr = ashr i32 %5, 8
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%and1 = and i32 %shr, 255
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%conv2 = trunc i32 %and1 to i8
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%6 = load i8**, i8*** %pQ7.addr, align 4, !tbaa !6
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%7 = load i8*, i8** %6, align 4, !tbaa !6
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%arrayidx3 = getelementptr inbounds i8, i8* %7, i32 1
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store i8 %conv2, i8* %arrayidx3, align 1, !tbaa !3
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%8 = load i32, i32* %val, align 4, !tbaa !8
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%shr4 = ashr i32 %8, 16
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%and5 = and i32 %shr4, 255
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%conv6 = trunc i32 %and5 to i8
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%9 = load i8**, i8*** %pQ7.addr, align 4, !tbaa !6
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%10 = load i8*, i8** %9, align 4, !tbaa !6
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%arrayidx7 = getelementptr inbounds i8, i8* %10, i32 2
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store i8 %conv6, i8* %arrayidx7, align 1, !tbaa !3
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%11 = load i32, i32* %val, align 4, !tbaa !8
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%shr8 = ashr i32 %11, 24
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%and9 = and i32 %shr8, 255
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%conv10 = trunc i32 %and9 to i8
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%12 = load i8**, i8*** %pQ7.addr, align 4, !tbaa !6
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%13 = load i8*, i8** %12, align 4, !tbaa !6
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%arrayidx11 = getelementptr inbounds i8, i8* %13, i32 3
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store i8 %conv10, i8* %arrayidx11, align 1, !tbaa !3
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%14 = load i8**, i8*** %pQ7.addr, align 4, !tbaa !6
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%15 = load i8*, i8** %14, align 4, !tbaa !6
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%add.ptr = getelementptr inbounds i8, i8* %15, i32 4
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store i8* %add.ptr, i8** %14, align 4, !tbaa !6
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%16 = bitcast i32* %val to i8*
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call void @llvm.lifetime.end.p0i8(i64 4, i8* %16) #3
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ret void
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}
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; Function Attrs: argmemonly nofree nosync nounwind willreturn
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declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #1
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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" }
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attributes #1 = { argmemonly nofree nosync nounwind willreturn }
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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" }
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attributes #3 = { nounwind }
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!llvm.module.flags = !{!0, !1}
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!llvm.ident = !{!2}
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!0 = !{i32 1, !"wchar_size", i32 4}
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!1 = !{i32 1, !"min_enum_size", i32 4}
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!2 = !{!"clang version 12.0.0 (https://github.com/llvm/llvm-project.git 07f234be1ccbce131704f580aa3f117083a887f7)"}
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!3 = !{!4, !4, i64 0}
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!4 = !{!"omnipotent char", !5, i64 0}
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!5 = !{!"Simple C/C++ TBAA"}
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!6 = !{!7, !7, i64 0}
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!7 = !{!"any pointer", !4, i64 0}
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!8 = !{!9, !9, i64 0}
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!9 = !{!"int", !4, i64 0}
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!10 = distinct !{!10, !11}
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!11 = !{!"llvm.loop.mustprogress"}
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!12 = distinct !{!12, !11}
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