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Diffstat (limited to 'llvm/test/Analysis/DDG/basic-a.ll')
| -rw-r--r-- | llvm/test/Analysis/DDG/basic-a.ll | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/llvm/test/Analysis/DDG/basic-a.ll b/llvm/test/Analysis/DDG/basic-a.ll new file mode 100644 index 00000000000..4c05259a886 --- /dev/null +++ b/llvm/test/Analysis/DDG/basic-a.ll @@ -0,0 +1,189 @@ +; RUN: opt < %s -disable-output "-passes=print<ddg>" 2>&1 | FileCheck %s + +; CHECK-LABEL: 'DDG' for loop 'test1.for.body': +; CHECK: Node Address:[[N1:0x[0-9a-f]*]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %i.02 = phi i64 [ %inc, %test1.for.body ], [ 0, %test1.for.body.preheader ] +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N2:0x[0-9a-f]*]] +; CHECK-NEXT: [def-use] to [[N3:0x[0-9a-f]*]] +; CHECK-NEXT: [def-use] to [[N4:0x[0-9a-f]*]] + +; CHECK: Node Address:[[N4]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %arrayidx = getelementptr inbounds float, float* %b, i64 %i.02 +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N5:0x[0-9a-f]*]] + +; CHECK: Node Address:[[N5]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %0 = load float, float* %arrayidx, align 4 +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N6:0x[0-9a-f]*]] + +; CHECK: Node Address:[[N7:0x[0-9a-f]*]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %conv = uitofp i64 %n to float +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N6]] + +; CHECK: Node Address:[[N6]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %add = fadd float %0, %conv +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N8:0x[0-9a-f]*]] + +; CHECK: Node Address:[[N3]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %arrayidx1 = getelementptr inbounds float, float* %a, i64 %i.02 +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N8]] + +; CHECK: Node Address:[[N8]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: store float %add, float* %arrayidx1, align 4 +; CHECK-NEXT: Edges:none! + +; CHECK: Node Address:[[N2]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %inc = add i64 %i.02, 1 +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N9:0x[0-9a-f]*]] +; CHECK-NEXT: [def-use] to [[N1]] + +; CHECK: Node Address:[[N9]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %exitcond = icmp ne i64 %inc, %n +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N10:0x[0-9a-f]*]] + +; CHECK: Node Address:[[N10]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: br i1 %exitcond, label %test1.for.body, label %for.end.loopexit +; CHECK-NEXT: Edges:none! + +;; No memory dependencies. +;; void test1(unsigned long n, float * restrict a, float * restrict b) { +;; for (unsigned long i = 0; i < n; i++) +;; a[i] = b[i] + n; +;; } + +define void @test1(i64 %n, float* noalias %a, float* noalias %b) { +entry: + %exitcond1 = icmp ne i64 0, %n + br i1 %exitcond1, label %test1.for.body, label %for.end + +test1.for.body: ; preds = %entry, %test1.for.body + %i.02 = phi i64 [ %inc, %test1.for.body ], [ 0, %entry ] + %arrayidx = getelementptr inbounds float, float* %b, i64 %i.02 + %0 = load float, float* %arrayidx, align 4 + %conv = uitofp i64 %n to float + %add = fadd float %0, %conv + %arrayidx1 = getelementptr inbounds float, float* %a, i64 %i.02 + store float %add, float* %arrayidx1, align 4 + %inc = add i64 %i.02, 1 + %exitcond = icmp ne i64 %inc, %n + br i1 %exitcond, label %test1.for.body, label %for.end + +for.end: ; preds = %test1.for.body, %entry + ret void +} + + +; CHECK-LABEL: 'DDG' for loop 'test2.for.body': +; CHECK: Node Address:[[N1:0x[0-9a-f]*]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %i.02 = phi i64 [ %inc, %test2.for.body ], [ 0, %test2.for.body.preheader ] +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N2:0x[0-9a-f]*]] +; CHECK-NEXT: [def-use] to [[N3:0x[0-9a-f]*]] +; CHECK-NEXT: [def-use] to [[N4:0x[0-9a-f]*]] +; CHECK-NEXT: [def-use] to [[N5:0x[0-9a-f]*]] + +; CHECK: Node Address:[[N5]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %arrayidx = getelementptr inbounds float, float* %b, i64 %i.02 +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N6:0x[0-9a-f]*]] + +; CHECK: Node Address:[[N6]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %0 = load float, float* %arrayidx, align 4 +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N7:0x[0-9a-f]*]] + +; CHECK: Node Address:[[N4]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %arrayidx1 = getelementptr inbounds float, float* %a, i64 %i.02 +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N8:0x[0-9a-f]*]] + +; CHECK: Node Address:[[N8]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %1 = load float, float* %arrayidx1, align 4 +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N7]] +; CHECK-NEXT: [memory] to [[N9:0x[0-9a-f]*]] + +; CHECK: Node Address:[[N7]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %add = fadd float %0, %1 +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N9]] + +; CHECK: Node Address:[[N3]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %arrayidx2 = getelementptr inbounds float, float* %a, i64 %i.02 +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N9]] + +; CHECK: Node Address:[[N9]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: store float %add, float* %arrayidx2, align 4 +; CHECK-NEXT: Edges:none! + +; CHECK: Node Address:[[N2]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %inc = add i64 %i.02, 1 +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N10:0x[0-9a-f]*]] +; CHECK-NEXT: [def-use] to [[N1]] + +; CHECK: Node Address:[[N10]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: %exitcond = icmp ne i64 %inc, %n +; CHECK-NEXT: Edges: +; CHECK-NEXT: [def-use] to [[N11:0x[0-9a-f]*]] + +; CHECK: Node Address:[[N11]]:single-instruction +; CHECK-NEXT: Instructions: +; CHECK-NEXT: br i1 %exitcond, label %test2.for.body, label %for.end.loopexit +; CHECK-NEXT: Edges:none! + +;; Loop-independent memory dependencies. +;; void test2(unsigned long n, float * restrict a, float * restrict b) { +;; for (unsigned long i = 0; i < n; i++) +;; a[i] = b[i] + a[i]; +;; } + +define void @test2(i64 %n, float* noalias %a, float* noalias %b) { +entry: + %exitcond1 = icmp ne i64 0, %n + br i1 %exitcond1, label %test2.for.body, label %for.end + +test2.for.body: ; preds = %entry, %test2.for.body + %i.02 = phi i64 [ %inc, %test2.for.body ], [ 0, %entry ] + %arrayidx = getelementptr inbounds float, float* %b, i64 %i.02 + %0 = load float, float* %arrayidx, align 4 + %arrayidx1 = getelementptr inbounds float, float* %a, i64 %i.02 + %1 = load float, float* %arrayidx1, align 4 + %add = fadd float %0, %1 + %arrayidx2 = getelementptr inbounds float, float* %a, i64 %i.02 + store float %add, float* %arrayidx2, align 4 + %inc = add i64 %i.02, 1 + %exitcond = icmp ne i64 %inc, %n + br i1 %exitcond, label %test2.for.body, label %for.end + +for.end: ; preds = %test2.for.body, %entry + ret void +}
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