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1; RUN: opt -aa-pipeline=basic-aa -passes=dot-ddg -dot-ddg-filename-prefix=%t < %s 2>&1 > /dev/null2; RUN: FileCheck %s -input-file=%t.foo.for.body.dot3; RUN: opt -aa-pipeline=basic-aa -passes=dot-ddg -dot-ddg-filename-prefix=%t -dot-ddg-only < %s 2>&1 > /dev/null4; RUN: FileCheck %s -input-file=%t.foo.for.body.dot -check-prefix=CHECK-ONLY5 6target datalayout = "e-m:e-i64:64-n32:64-v256:256:256-v512:512:512"7 8; Test the dot graph printer for a non-trivial DDG graph generated from9; the following test case. In particular it tests that pi-blocks are10; printed properly and that multiple memory dependencies on a single edge11; are shown in the full dot graph.12;13; void foo(ptr restrict A, ptr restrict B, int n) {14; for (int i = 0; i < n; i++) {15; A[i] = A[i] + B[i];16; B[i+1] = A[i] + 1;17; }18; }19 20 21; CHECK: digraph "DDG for 'foo.for.body'"22; CHECK-NEXT: label="DDG for 'foo.for.body'";23; CHECK: {{Node0x.*}} [shape=record,label="{\<kind:root\>\nroot\n}"]24; CHECK: {{Node0x.*}} -> {{Node0x.*}}[label="[rooted]"]25; CHECK-COUNT-6: {{Node0x.*}} -> {{Node0x.*}}[label="[def-use]"]26; CHECK-NOT: {{Node0x.*}} -> {{Node0x.*}}[label="[def-use]"]27; CHECK: [shape=record,label="{\<kind:single-instruction\>\n %arrayidx10 = getelementptr inbounds float, ptr %B, i64 %indvars.iv.next\n}"];28; CHECK: [shape=record,label="{\<kind:multi-instruction\>\n %arrayidx = getelementptr inbounds float, ptr %A, i64 %indvars.iv\n %0 = load float, ptr %arrayidx, align 4\n}"];29; CHECK: {{Node0x.*}} -> {{Node0x.*}}[label="[consistent anti [0|<]!, consistent input [0|<]!]"]30; CHECK: [shape=record,label="{\<kind:pi-block\>\n--- start of nodes in pi-block ---\n\<kind:single-instruction\>\n %1 = load float, ptr %arrayidx2, align 4\n\n\<kind:single-instruction\>\n %add = fadd fast float %0, %1\n\n\<kind:single-instruction\>\n store float %add, ptr %arrayidx4, align 4\n\n\<kind:multi-instruction\>\n %2 = load float, ptr %arrayidx6, align 4\n %add7 = fadd fast float %2, 1.000000e+00\n\n\<kind:single-instruction\>\n store float %add7, ptr %arrayidx10, align 4\n--- end of nodes in pi-block ---\n}"];31 32; CHECK-ONLY: digraph "DDG for 'foo.for.body'"33; CHECK-ONLY-NEXT: label="DDG for 'foo.for.body'";34; CHECK-ONLY: [shape=record,label="{pi-block\nwith\n2 nodes\n}"];35; CHECK-ONLY-COUNT-6: {{Node0x.*}} -> {{Node0x.*}}[label="[def-use]"];36; CHECK-NOT: {{Node0x.*}} -> {{Node0x.*}}[label="[def-use]"];37; CHECK-ONLY: [shape=record,label="{ %arrayidx10 = getelementptr inbounds float, ptr %B, i64 %indvars.iv.next\n}"];38; CHECK-ONLY: [shape=record,label="{ %arrayidx = getelementptr inbounds float, ptr %A, i64 %indvars.iv\n %0 = load float, ptr %arrayidx, align 4\n}"];39; CHECK-ONLY: {{Node0x.*}} -> {{Node0x.*}}[label="[memory]"]40; CHECK-ONLY: [shape=record,label="{pi-block\nwith\n5 nodes\n}"];41 42define void @foo(ptr noalias %A, ptr noalias %B, i32 signext %n) {43entry:44 %cmp1 = icmp sgt i32 %n, 045 br i1 %cmp1, label %for.body.preheader, label %for.end46 47for.body.preheader: ; preds = %entry48 %wide.trip.count = zext i32 %n to i6449 br label %for.body50 51for.body: ; preds = %for.body.preheader, %for.body52 %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]53 %arrayidx = getelementptr inbounds float, ptr %A, i64 %indvars.iv54 %0 = load float, ptr %arrayidx, align 455 %arrayidx2 = getelementptr inbounds float, ptr %B, i64 %indvars.iv56 %1 = load float, ptr %arrayidx2, align 457 %add = fadd fast float %0, %158 %arrayidx4 = getelementptr inbounds float, ptr %A, i64 %indvars.iv59 store float %add, ptr %arrayidx4, align 460 %arrayidx6 = getelementptr inbounds float, ptr %A, i64 %indvars.iv61 %2 = load float, ptr %arrayidx6, align 462 %add7 = fadd fast float %2, 1.000000e+0063 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 164 %arrayidx10 = getelementptr inbounds float, ptr %B, i64 %indvars.iv.next65 store float %add7, ptr %arrayidx10, align 466 %exitcond = icmp ne i64 %indvars.iv.next, %wide.trip.count67 br i1 %exitcond, label %for.body, label %for.end.loopexit68 69for.end.loopexit: ; preds = %for.body70 br label %for.end71 72for.end: ; preds = %for.end.loopexit, %entry73 ret void74}75