4cd2db44f7
While in this area I also removed unnecessary annotations for wchar_size and also cleaned up some more function attributes.
75 lines
2.9 KiB
LLVM
75 lines
2.9 KiB
LLVM
; Confirm that the line numbers for the middle.block operations are all the
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; same as the start of the loop.
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; RUN: opt -S -passes=loop-vectorize -force-vector-width=4 -force-vector-interleave=4 <%s | FileCheck %s
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;
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; CHECK: middle.block:
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; CHECK-NEXT: %{{.*}}= add <4 x i32>{{.*}}, !dbg ![[DL:[0-9]+]]
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; CHECK-NEXT: %{{.*}}= add <4 x i32>{{.*}}, !dbg ![[DL]]
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; CHECK-NEXT: %{{.*}}= add <4 x i32>{{.*}}, !dbg ![[DL]]
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; CHECK-NEXT: %{{.*}}= call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> {{.*}}), !dbg ![[DL]]
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; CHECK-NEXT: %{{.*}}= icmp eq i64{{.*}}, !dbg ![[DL]]
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; CHECK-NEXT: br i1 %{{.*}}, !dbg ![[DL]]
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; CHECK: ![[DL]] = !DILocation(line: 5,
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; This IR can be generated by running:
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; clang -gmlt -S src.cpp -emit-llvm -mllvm -opt-bisect-limit=56 -O2 -o -
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;
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; Where src.cpp contains:
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; int foo(int count, int *bar)
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; {
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; int ret = count;
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; int tmp;
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; for (int j = 0; j < count; j++) {
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; tmp = bar[j];
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; ret += tmp;
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; }
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;
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; return ret;
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; }
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define i32 @"foo"(i32 %count, ptr nocapture readonly %bar) !dbg !8 {
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entry:
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%cmp8 = icmp sgt i32 %count, 0, !dbg !10
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br i1 %cmp8, label %for.body.preheader, label %for.cond.cleanup, !dbg !10
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for.body.preheader:
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%wide.trip.count = zext i32 %count to i64
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br label %for.body, !dbg !11
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for.cond.cleanup.loopexit:
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%add.lcssa = phi i32 [ %add, %for.body ], !dbg !12
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br label %for.cond.cleanup, !dbg !13
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for.cond.cleanup:
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%ret.0.lcssa = phi i32 [ %count, %entry ], [ %add.lcssa, %for.cond.cleanup.loopexit ], !dbg !14
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ret i32 %ret.0.lcssa, !dbg !13
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for.body:
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%indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
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%ret.09 = phi i32 [ %count, %for.body.preheader ], [ %add, %for.body ]
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%arrayidx = getelementptr inbounds i32, ptr %bar, i64 %indvars.iv, !dbg !11
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%0 = load i32, ptr %arrayidx, align 4, !dbg !11
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%add = add nsw i32 %0, %ret.09, !dbg !12
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !10
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%exitcond = icmp eq i64 %indvars.iv.next, %wide.trip.count, !dbg !10
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br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body, !dbg !10, !llvm.loop !19
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "src.cpp", directory: "")
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!2 = !{}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !9, scopeLine: 2, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!9 = !DISubroutineType(types: !2)
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!10 = !DILocation(line: 5, scope: !8)
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!11 = !DILocation(line: 6, scope: !8)
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!12 = !DILocation(line: 7, scope: !8)
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!13 = !DILocation(line: 10, scope: !8)
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!14 = !DILocation(line: 0, scope: !8)
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!19 = distinct !{!19, !10, !20}
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!20 = !DILocation(line: 8, scope: !8)
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