219 lines
9.8 KiB
LLVM
219 lines
9.8 KiB
LLVM
; RUN: opt < %s -loop-vectorize -S -pass-remarks-missed='loop-vectorize' -pass-remarks-analysis='loop-vectorize' 2>&1 | FileCheck %s
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; RUN: opt < %s -loop-vectorize -o /dev/null -pass-remarks-output=%t.yaml
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; RUN: cat %t.yaml | FileCheck -check-prefix=YAML %s
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; C/C++ code for tests
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; void test(int *A, int Length) {
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; #pragma clang loop vectorize(enable) interleave(enable)
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; for (int i = 0; i < Length; i++) {
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; A[i] = i;
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; if (A[i] > Length)
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; break;
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; }
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; }
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; void test_disabled(int *A, int Length) {
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; #pragma clang loop vectorize(disable) interleave(disable)
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; for (int i = 0; i < Length; i++)
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; A[i] = i;
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; }
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; void test_array_bounds(int *A, int *B, int Length) {
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; #pragma clang loop vectorize(enable)
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; for (int i = 0; i < Length; i++)
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; A[i] = A[B[i]];
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; }
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; File, line, and column should match those specified in the metadata
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; CHECK: remark: source.cpp:4:5: loop not vectorized: could not determine number of loop iterations
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; CHECK: remark: source.cpp:4:5: loop not vectorized
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; CHECK: remark: source.cpp:13:5: loop not vectorized: vectorization and interleaving are explicitly disabled, or vectorize width and interleave count are both set to 1
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; CHECK: remark: source.cpp:19:5: loop not vectorized: cannot identify array bounds
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; CHECK: remark: source.cpp:19:5: loop not vectorized
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; CHECK: warning: source.cpp:19:5: loop not vectorized: failed explicitly specified loop vectorization
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; CHECK: _Z4testPii
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; CHECK-NOT: x i32>
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; CHECK: ret
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; CHECK: _Z13test_disabledPii
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; CHECK-NOT: x i32>
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; CHECK: ret
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; CHECK: _Z17test_array_boundsPiS_i
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; CHECK-NOT: x i32>
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; CHECK: ret
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; YAML: --- !Analysis
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; YAML-NEXT: Pass: loop-vectorize
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; YAML-NEXT: Name: CantComputeNumberOfIterations
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; YAML-NEXT: DebugLoc: { File: source.cpp, Line: 4, Column: 5 }
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; YAML-NEXT: Function: _Z4testPii
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; YAML-NEXT: Args:
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; YAML-NEXT: - String: 'loop not vectorized: '
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; YAML-NEXT: - String: could not determine number of loop iterations
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; YAML-NEXT: ...
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; YAML-NEXT: --- !Missed
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; YAML-NEXT: Pass: loop-vectorize
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; YAML-NEXT: Name: MissedDetails
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; YAML-NEXT: DebugLoc: { File: source.cpp, Line: 4, Column: 5 }
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; YAML-NEXT: Function: _Z4testPii
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; YAML-NEXT: Args:
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; YAML-NEXT: - String: loop not vectorized
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; YAML-NEXT: ...
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; YAML-NEXT: --- !Analysis
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; YAML-NEXT: Pass: loop-vectorize
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; YAML-NEXT: Name: AllDisabled
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; YAML-NEXT: DebugLoc: { File: source.cpp, Line: 13, Column: 5 }
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; YAML-NEXT: Function: _Z13test_disabledPii
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; YAML-NEXT: Args:
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; YAML-NEXT: - String: 'loop not vectorized: vectorization and interleaving are explicitly disabled, or vectorize width and interleave count are both set to 1'
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; YAML-NEXT: ...
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; YAML-NEXT: --- !Analysis
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; YAML-NEXT: Pass: ''
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; YAML-NEXT: Name: CantIdentifyArrayBounds
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; YAML-NEXT: DebugLoc: { File: source.cpp, Line: 19, Column: 5 }
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; YAML-NEXT: Function: _Z17test_array_boundsPiS_i
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; YAML-NEXT: Args:
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; YAML-NEXT: - String: 'loop not vectorized: '
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; YAML-NEXT: - String: cannot identify array bounds
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; YAML-NEXT: ...
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; YAML-NEXT: --- !Missed
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; YAML-NEXT: Pass: loop-vectorize
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; YAML-NEXT: Name: MissedDetails
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; YAML-NEXT: DebugLoc: { File: source.cpp, Line: 19, Column: 5 }
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; YAML-NEXT: Function: _Z17test_array_boundsPiS_i
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; YAML-NEXT: Args:
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; YAML-NEXT: - String: loop not vectorized
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; YAML-NEXT: - String: ' (Force='
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; YAML-NEXT: - Force: 'true'
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; YAML-NEXT: - String: ')'
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; YAML-NEXT: ...
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; YAML-NEXT: --- !Failure
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; YAML-NEXT: Pass: loop-vectorize
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; YAML-NEXT: Name: FailedRequestedVectorization
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; YAML-NEXT: DebugLoc: { File: source.cpp, Line: 19, Column: 5 }
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; YAML-NEXT: Function: _Z17test_array_boundsPiS_i
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; YAML-NEXT: Args:
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; YAML-NEXT: - String: 'loop not vectorized: '
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; YAML-NEXT: - String: failed explicitly specified loop vectorization
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; YAML-NEXT: ...
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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; Function Attrs: nounwind optsize ssp uwtable
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define void @_Z4testPii(i32* nocapture %A, i32 %Length) #0 !dbg !4 {
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entry:
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%cmp10 = icmp sgt i32 %Length, 0, !dbg !12
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br i1 %cmp10, label %for.body, label %for.end, !dbg !12, !llvm.loop !14
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for.body: ; preds = %entry, %for.body
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv, !dbg !16
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%0 = trunc i64 %indvars.iv to i32, !dbg !16
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%ld = load i32, i32* %arrayidx, align 4
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store i32 %0, i32* %arrayidx, align 4, !dbg !16, !tbaa !18
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%cmp3 = icmp sle i32 %ld, %Length, !dbg !22
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !12
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%1 = trunc i64 %indvars.iv.next to i32
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%cmp = icmp slt i32 %1, %Length, !dbg !12
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%or.cond = and i1 %cmp3, %cmp, !dbg !22
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br i1 %or.cond, label %for.body, label %for.end, !dbg !22
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for.end: ; preds = %for.body, %entry
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ret void, !dbg !24
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}
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; Function Attrs: nounwind optsize ssp uwtable
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define void @_Z13test_disabledPii(i32* nocapture %A, i32 %Length) #0 !dbg !7 {
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entry:
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%cmp4 = icmp sgt i32 %Length, 0, !dbg !25
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br i1 %cmp4, label %for.body, label %for.end, !dbg !25, !llvm.loop !27
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for.body: ; preds = %entry, %for.body
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv, !dbg !30
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%0 = trunc i64 %indvars.iv to i32, !dbg !30
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store i32 %0, i32* %arrayidx, align 4, !dbg !30, !tbaa !18
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !25
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !25
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%exitcond = icmp eq i32 %lftr.wideiv, %Length, !dbg !25
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br i1 %exitcond, label %for.end, label %for.body, !dbg !25, !llvm.loop !27
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for.end: ; preds = %for.body, %entry
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ret void, !dbg !31
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}
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; Function Attrs: nounwind optsize ssp uwtable
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define void @_Z17test_array_boundsPiS_i(i32* nocapture %A, i32* nocapture readonly %B, i32 %Length) #0 !dbg !8 {
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entry:
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%cmp9 = icmp sgt i32 %Length, 0, !dbg !32
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br i1 %cmp9, label %for.body.preheader, label %for.end, !dbg !32, !llvm.loop !34
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for.body.preheader: ; preds = %entry
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br label %for.body, !dbg !35
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for.body: ; preds = %for.body.preheader, %for.body
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
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%arrayidx = getelementptr inbounds i32, i32* %B, i64 %indvars.iv, !dbg !35
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%0 = load i32, i32* %arrayidx, align 4, !dbg !35, !tbaa !18
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%idxprom1 = sext i32 %0 to i64, !dbg !35
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %idxprom1, !dbg !35
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%1 = load i32, i32* %arrayidx2, align 4, !dbg !35, !tbaa !18
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%arrayidx4 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv, !dbg !35
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store i32 %1, i32* %arrayidx4, align 4, !dbg !35, !tbaa !18
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !32
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !32
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%exitcond = icmp eq i32 %lftr.wideiv, %Length, !dbg !32
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br i1 %exitcond, label %for.end.loopexit, label %for.body, !dbg !32, !llvm.loop !34
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for.end.loopexit: ; preds = %for.body
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %entry
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ret void, !dbg !36
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}
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attributes #0 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!9, !10}
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!llvm.ident = !{!11}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0", isOptimized: true, runtimeVersion: 6, emissionKind: LineTablesOnly, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
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!1 = !DIFile(filename: "source.cpp", directory: ".")
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!2 = !{}
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!4 = distinct !DISubprogram(name: "test", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2)
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!5 = !DIFile(filename: "source.cpp", directory: ".")
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!6 = !DISubroutineType(types: !2)
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!7 = distinct !DISubprogram(name: "test_disabled", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 10, file: !1, scope: !5, type: !6, variables: !2)
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!8 = distinct !DISubprogram(name: "test_array_bounds", line: 16, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 16, file: !1, scope: !5, type: !6, variables: !2)
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!9 = !{i32 2, !"Dwarf Version", i32 2}
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!10 = !{i32 2, !"Debug Info Version", i32 3}
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!11 = !{!"clang version 3.5.0"}
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!12 = !DILocation(line: 3, column: 8, scope: !13)
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!13 = distinct !DILexicalBlock(line: 3, column: 3, file: !1, scope: !4)
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!14 = !{!14, !15, !15}
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!15 = !{!"llvm.loop.vectorize.enable", i1 true}
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!16 = !DILocation(line: 4, column: 5, scope: !17)
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!17 = distinct !DILexicalBlock(line: 3, column: 36, file: !1, scope: !13)
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!18 = !{!19, !19, i64 0}
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!19 = !{!"int", !20, i64 0}
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!20 = !{!"omnipotent char", !21, i64 0}
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!21 = !{!"Simple C/C++ TBAA"}
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!22 = !DILocation(line: 5, column: 9, scope: !23)
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!23 = distinct !DILexicalBlock(line: 5, column: 9, file: !1, scope: !17)
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!24 = !DILocation(line: 8, column: 1, scope: !4)
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!25 = !DILocation(line: 12, column: 8, scope: !26)
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!26 = distinct !DILexicalBlock(line: 12, column: 3, file: !1, scope: !7)
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!27 = !{!27, !28, !29}
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!28 = !{!"llvm.loop.interleave.count", i32 1}
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!29 = !{!"llvm.loop.vectorize.width", i32 1}
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!30 = !DILocation(line: 13, column: 5, scope: !26)
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!31 = !DILocation(line: 14, column: 1, scope: !7)
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!32 = !DILocation(line: 18, column: 8, scope: !33)
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!33 = distinct !DILexicalBlock(line: 18, column: 3, file: !1, scope: !8)
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!34 = !{!34, !15}
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!35 = !DILocation(line: 19, column: 5, scope: !33)
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!36 = !DILocation(line: 20, column: 1, scope: !8)
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