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Mel-ChenMel-Chen
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simplified !dbg
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‎llvm/test/Transforms/LoopVectorize/RISCV/dbg-tail-folding-by-evl.ll‎

Lines changed: 41 additions & 56 deletions
Original file line numberDiff line numberDiff line change
@@ -7,17 +7,17 @@ define void @reverse_store(ptr %a, i64 %n) !dbg !4 {
77
; CHECK-LABEL: define void @reverse_store(
88
; CHECK-SAME: ptr [[A:%.*]], i64 [[N:%.*]]) #[[ATTR0:[0-9]+]] !dbg [[DBG4:![0-9]+]] {
99
; CHECK-NEXT: [[ENTRY:.*:]]
10-
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[N]], 1, !dbg [[DBG15:![0-9]+]]
11-
; CHECK-NEXT: [[UMIN:%.*]] = call i64 @llvm.umin.i64(i64 [[N]], i64 1), !dbg [[DBG15]]
12-
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[TMP0]], [[UMIN]], !dbg [[DBG15]]
13-
; CHECK-NEXT: br label %[[VECTOR_PH:.*]], !dbg [[DBG15]]
10+
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[N]], 1
11+
; CHECK-NEXT: [[UMIN:%.*]] = call i64 @llvm.umin.i64(i64 [[N]], i64 1)
12+
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[TMP0]], [[UMIN]]
13+
; CHECK-NEXT: br label %[[VECTOR_PH:.*]]
1414
; CHECK: [[VECTOR_PH]]:
1515
; CHECK-NEXT: [[TMP2:%.*]] = call <vscale x 4 x i64> @llvm.stepvector.nxv4i64()
1616
; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <vscale x 4 x i64> poison, i64 [[N]], i64 0
1717
; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <vscale x 4 x i64> [[BROADCAST_SPLATINSERT]], <vscale x 4 x i64> poison, <vscale x 4 x i32> zeroinitializer
1818
; CHECK-NEXT: [[TMP3:%.*]] = mul nsw <vscale x 4 x i64> [[TMP2]], splat (i64 -1)
1919
; CHECK-NEXT: [[INDUCTION:%.*]] = add nsw <vscale x 4 x i64> [[BROADCAST_SPLAT]], [[TMP3]]
20-
; CHECK-NEXT: br label %[[VECTOR_BODY:.*]], !dbg [[DBG15]]
20+
; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]
2121
; CHECK: [[VECTOR_BODY]]:
2222
; CHECK-NEXT: [[VEC_IND:%.*]] = phi <vscale x 4 x i64> [ [[INDUCTION]], %[[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], %[[VECTOR_BODY]] ]
2323
; CHECK-NEXT: [[AVL:%.*]] = phi i64 [ [[TMP1]], %[[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], %[[VECTOR_BODY]] ]
@@ -26,41 +26,41 @@ define void @reverse_store(ptr %a, i64 %n) !dbg !4 {
2626
; CHECK-NEXT: [[TMP6:%.*]] = mul nsw i64 -1, [[TMP5]]
2727
; CHECK-NEXT: [[BROADCAST_SPLATINSERT1:%.*]] = insertelement <vscale x 4 x i64> poison, i64 [[TMP6]], i64 0
2828
; CHECK-NEXT: [[BROADCAST_SPLAT2:%.*]] = shufflevector <vscale x 4 x i64> [[BROADCAST_SPLATINSERT1]], <vscale x 4 x i64> poison, <vscale x 4 x i32> zeroinitializer
29-
; CHECK-NEXT: [[TMP7:%.*]] = add nsw <vscale x 4 x i64> [[VEC_IND]], splat (i64 -1), !dbg [[DBG16:![0-9]+]]
29+
; CHECK-NEXT: [[TMP7:%.*]] = add nsw <vscale x 4 x i64> [[VEC_IND]], splat (i64 -1), !dbg [[DBG11:![0-9]+]]
3030
; CHECK-NEXT: [[TMP8:%.*]] = extractelement <vscale x 4 x i64> [[TMP7]], i32 0
31-
; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP8]], !dbg [[DBG17:![0-9]+]]
32-
; CHECK-NEXT: [[TMP10:%.*]] = trunc nuw nsw <vscale x 4 x i64> [[TMP7]] to <vscale x 4 x i32>, !dbg [[DBG19:![0-9]+]]
33-
; CHECK-NEXT: [[TMP11:%.*]] = zext i32 [[TMP4]] to i64, !dbg [[DBG19]]
34-
; CHECK-NEXT: [[TMP12:%.*]] = mul i64 0, [[TMP11]], !dbg [[DBG19]]
35-
; CHECK-NEXT: [[TMP13:%.*]] = sub i64 [[TMP11]], 1, !dbg [[DBG19]]
36-
; CHECK-NEXT: [[TMP14:%.*]] = mul i64 -1, [[TMP13]], !dbg [[DBG19]]
37-
; CHECK-NEXT: [[TMP15:%.*]] = getelementptr i32, ptr [[TMP9]], i64 [[TMP12]], !dbg [[DBG19]]
38-
; CHECK-NEXT: [[TMP16:%.*]] = getelementptr i32, ptr [[TMP15]], i64 [[TMP14]], !dbg [[DBG19]]
39-
; CHECK-NEXT: [[VP_REVERSE:%.*]] = call <vscale x 4 x i32> @llvm.experimental.vp.reverse.nxv4i32(<vscale x 4 x i32> [[TMP10]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP4]]), !dbg [[DBG19]]
40-
; CHECK-NEXT: call void @llvm.vp.store.nxv4i32.p0(<vscale x 4 x i32> [[VP_REVERSE]], ptr align 4 [[TMP16]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP4]]), !dbg [[DBG19]]
31+
; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds nuw i32, ptr [[A]], i64 [[TMP8]], !dbg [[DBG12:![0-9]+]]
32+
; CHECK-NEXT: [[TMP10:%.*]] = trunc nuw nsw <vscale x 4 x i64> [[TMP7]] to <vscale x 4 x i32>, !dbg [[DBG13:![0-9]+]]
33+
; CHECK-NEXT: [[TMP11:%.*]] = zext i32 [[TMP4]] to i64, !dbg [[DBG13]]
34+
; CHECK-NEXT: [[TMP12:%.*]] = mul i64 0, [[TMP11]], !dbg [[DBG13]]
35+
; CHECK-NEXT: [[TMP13:%.*]] = sub i64 [[TMP11]], 1, !dbg [[DBG13]]
36+
; CHECK-NEXT: [[TMP14:%.*]] = mul i64 -1, [[TMP13]], !dbg [[DBG13]]
37+
; CHECK-NEXT: [[TMP15:%.*]] = getelementptr i32, ptr [[TMP9]], i64 [[TMP12]], !dbg [[DBG13]]
38+
; CHECK-NEXT: [[TMP16:%.*]] = getelementptr i32, ptr [[TMP15]], i64 [[TMP14]], !dbg [[DBG13]]
39+
; CHECK-NEXT: [[VP_REVERSE:%.*]] = call <vscale x 4 x i32> @llvm.experimental.vp.reverse.nxv4i32(<vscale x 4 x i32> [[TMP10]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP4]]), !dbg [[DBG13]]
40+
; CHECK-NEXT: call void @llvm.vp.store.nxv4i32.p0(<vscale x 4 x i32> [[VP_REVERSE]], ptr align 4 [[TMP16]], <vscale x 4 x i1> splat (i1 true), i32 [[TMP4]]), !dbg [[DBG13]]
4141
; CHECK-NEXT: [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP5]]
4242
; CHECK-NEXT: [[VEC_IND_NEXT]] = add nsw <vscale x 4 x i64> [[VEC_IND]], [[BROADCAST_SPLAT2]]
4343
; CHECK-NEXT: [[TMP17:%.*]] = icmp eq i64 [[AVL_NEXT]], 0
44-
; CHECK-NEXT: br i1 [[TMP17]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP20:![0-9]+]]
44+
; CHECK-NEXT: br i1 [[TMP17]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP14:![0-9]+]]
4545
; CHECK: [[MIDDLE_BLOCK]]:
4646
; CHECK-NEXT: br label %[[FOR_COND_CLEANUP:.*]]
4747
; CHECK: [[FOR_COND_CLEANUP]]:
48-
; CHECK-NEXT: ret void, !dbg [[DBG23:![0-9]+]]
48+
; CHECK-NEXT: ret void
4949
;
5050
entry:
51-
br label %for.body, !dbg !15
51+
br label %for.body
5252

5353
for.cond.cleanup: ; preds = %for.body
54-
ret void, !dbg !16
54+
ret void
5555

5656
for.body: ; preds = %entry, %for.body
5757
%indvars.iv = phi i64 [ %n, %entry ], [ %indvars.iv.next, %for.body ]
58-
%indvars.iv.next = add nsw i64 %indvars.iv, -1, !dbg !18
59-
%arrayidx = getelementptr inbounds nuw i32, ptr %a, i64 %indvars.iv.next, !dbg !19
60-
%1 = trunc nuw nsw i64 %indvars.iv.next to i32, !dbg !20
61-
store i32 %1, ptr %arrayidx, align 4, !dbg !20
62-
%cmp = icmp samesign ugt i64 %indvars.iv, 1, !dbg !21
63-
br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !22, !llvm.loop !23
58+
%indvars.iv.next = add nsw i64 %indvars.iv, -1, !dbg !11
59+
%arrayidx = getelementptr inbounds nuw i32, ptr %a, i64 %indvars.iv.next, !dbg !12
60+
%1 = trunc nuw nsw i64 %indvars.iv.next to i32, !dbg !13
61+
store i32 %1, ptr %arrayidx, align 4, !dbg !13
62+
%cmp = icmp samesign ugt i64 %indvars.iv, 1, !dbg !14
63+
br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !15, !llvm.loop !16
6464
}
6565

6666
!llvm.dbg.cu = !{!0}
@@ -76,22 +76,14 @@ for.body: ; preds = %entry, %for.body
7676
!7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 64)
7777
!8 = !DIBasicType(name: "long", size: 64, encoding: DW_ATE_signed)
7878
!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
79-
!10 = !{!11, !12, !13}
80-
!11 = !DILocalVariable(name: "a", arg: 1, scope: !4, file: !1, line: 1, type: !7)
81-
!12 = !DILocalVariable(name: "n", arg: 2, scope: !4, file: !1, line: 1, type: !8)
82-
!13 = !DILocalVariable(name: "i", scope: !14, file: !1, line: 2, type: !9)
83-
!14 = distinct !DILexicalBlock(scope: !4, file: !1, line: 2, column: 5)
84-
!15 = !DILocation(line: 2, column: 5, scope: !14)
85-
!16 = !DILocation(line: 4, column: 1, scope: !4)
86-
!17 = distinct !DILexicalBlock(scope: !14, file: !1, line: 2, column: 5)
87-
!18 = !DILocation(line: 2, scope: !14)
88-
!19 = !DILocation(line: 3, column: 7, scope: !17)
89-
!20 = !DILocation(line: 3, column: 12, scope: !17)
90-
!21 = !DILocation(line: 2, column: 27, scope: !17)
91-
!22 = !DILocation(line: 2, column: 5, scope: !14)
92-
!23 = distinct !{!23, !15, !24, !25}
93-
!24 = !DILocation(line: 3, column: 14, scope: !14)
94-
!25 = !{!"llvm.loop.vectorize.enable", i1 true}
79+
!10 = !{}
80+
!11 = !DILocation(line: 2, scope: !4)
81+
!12 = !DILocation(line: 3, column: 7, scope: !4)
82+
!13 = !DILocation(line: 3, column: 12, scope: !4)
83+
!14 = !DILocation(line: 2, column: 27, scope: !4)
84+
!15 = !DILocation(line: 2, column: 5, scope: !4)
85+
!16 = distinct !{!16, !17}
86+
!17 = !{!"llvm.loop.vectorize.enable", i1 true}
9587
;.
9688
; CHECK: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: [[META1:![0-9]+]], producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
9789
; CHECK: [[META1]] = !DIFile(filename: "{{.*}}dbg-tail-folding-by-evl.cpp", directory: {{.*}})
@@ -101,18 +93,11 @@ for.body: ; preds = %entry, %for.body
10193
; CHECK: [[META7]] = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: [[META8:![0-9]+]], size: 64)
10294
; CHECK: [[META8]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
10395
; CHECK: [[META9]] = !DIBasicType(name: "long", size: 64, encoding: DW_ATE_signed)
104-
; CHECK: [[META10]] = !{[[META11:![0-9]+]], [[META12:![0-9]+]], [[META13:![0-9]+]]}
105-
; CHECK: [[META11]] = !DILocalVariable(name: "a", arg: 1, scope: [[DBG4]], file: [[META1]], line: 1, type: [[META7]])
106-
; CHECK: [[META12]] = !DILocalVariable(name: "n", arg: 2, scope: [[DBG4]], file: [[META1]], line: 1, type: [[META9]])
107-
; CHECK: [[META13]] = !DILocalVariable(name: "i", scope: [[META14:![0-9]+]], file: [[META1]], line: 2, type: [[META8]])
108-
; CHECK: [[META14]] = distinct !DILexicalBlock(scope: [[DBG4]], file: [[META1]], line: 2, column: 5)
109-
; CHECK: [[DBG15]] = !DILocation(line: 2, column: 5, scope: [[META14]])
110-
; CHECK: [[DBG16]] = !DILocation(line: 2, scope: [[META14]])
111-
; CHECK: [[DBG17]] = !DILocation(line: 3, column: 7, scope: [[META18:![0-9]+]])
112-
; CHECK: [[META18]] = distinct !DILexicalBlock(scope: [[META14]], file: [[META1]], line: 2, column: 5)
113-
; CHECK: [[DBG19]] = !DILocation(line: 3, column: 12, scope: [[META18]])
114-
; CHECK: [[LOOP20]] = distinct !{[[LOOP20]], [[META21:![0-9]+]], [[META22:![0-9]+]]}
115-
; CHECK: [[META21]] = !{!"llvm.loop.isvectorized", i32 1}
116-
; CHECK: [[META22]] = !{!"llvm.loop.unroll.runtime.disable"}
117-
; CHECK: [[DBG23]] = !DILocation(line: 4, column: 1, scope: [[DBG4]])
96+
; CHECK: [[META10]] = !{}
97+
; CHECK: [[DBG11]] = !DILocation(line: 2, scope: [[DBG4]])
98+
; CHECK: [[DBG12]] = !DILocation(line: 3, column: 7, scope: [[DBG4]])
99+
; CHECK: [[DBG13]] = !DILocation(line: 3, column: 12, scope: [[DBG4]])
100+
; CHECK: [[LOOP14]] = distinct !{[[LOOP14]], [[META15:![0-9]+]], [[META16:![0-9]+]]}
101+
; CHECK: [[META15]] = !{!"llvm.loop.isvectorized", i32 1}
102+
; CHECK: [[META16]] = !{!"llvm.loop.unroll.runtime.disable"}
118103
;.

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