1; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s 2; 3; Allow the user to define function names that are treated as 4; error functions and assumed not to be executed. 5; 6; void timer_start(void); 7; void timer_stop(void); 8; void kernel(int *A, int *B, int timeit, int N) { 9; 10; if (timeit) 11; timer_start(); 12; 13; for (int i = 0; i < N; i++) 14; A[i] += B[i]; 15; 16; if (timeit) { 17; timer_stop(); 18; timer_start(); 19; } 20; 21; for (int i = 0; i < N; i++) 22; A[i] += B[i]; 23; 24; if (timeit) 25; timer_stop(); 26; } 27; 28; CHECK: Region: %for.cond---%if.end.20 29; CHECK: Assumed Context: 30; CHECK-NEXT: [N, timeit] -> { : } 31; CHECK: Invalid Context: 32; CHECK-NEXT: [N, timeit] -> { : timeit < 0 or timeit > 0 } 33; CHECK: Statements { 34; CHECK: Stmt 35; CHECK: Stmt 36; CHECK-NOT: Stmt 37; CHECK: } 38; 39target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 40 41define void @kernel(i32* %A, i32* %B, i32 %timeit, i32 %N) { 42entry: 43 %tobool = icmp eq i32 %timeit, 0 44 br i1 %tobool, label %if.end, label %if.then 45 46if.then: ; preds = %entry 47 call void @timer_start() 48 br label %if.end 49 50if.end: ; preds = %entry, %if.then 51 %tmp = sext i32 %N to i64 52 br label %for.cond 53 54for.cond: ; preds = %for.inc, %if.end 55 %indvars.iv1 = phi i64 [ %indvars.iv.next2, %for.inc ], [ 0, %if.end ] 56 %cmp = icmp slt i64 %indvars.iv1, %tmp 57 br i1 %cmp, label %for.body, label %for.end 58 59for.body: ; preds = %for.cond 60 %arrayidx = getelementptr inbounds i32, i32* %B, i64 %indvars.iv1 61 %tmp3 = load i32, i32* %arrayidx, align 4 62 %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv1 63 %tmp4 = load i32, i32* %arrayidx2, align 4 64 %add = add nsw i32 %tmp4, %tmp3 65 store i32 %add, i32* %arrayidx2, align 4 66 br label %for.inc 67 68for.inc: ; preds = %for.body 69 %indvars.iv.next2 = add nuw nsw i64 %indvars.iv1, 1 70 br label %for.cond 71 72for.end: ; preds = %for.cond 73 %tobool3 = icmp eq i32 %timeit, 0 74 br i1 %tobool3, label %if.end.5, label %if.then.4 75 76if.then.4: ; preds = %for.end 77 call void @timer_stop() 78 call void @timer_start() 79 br label %if.end.5 80 81if.end.5: ; preds = %for.end, %if.then.4 82 %tmp5 = sext i32 %N to i64 83 br label %for.cond.7 84 85for.cond.7: ; preds = %for.inc.15, %if.end.5 86 %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc.15 ], [ 0, %if.end.5 ] 87 %cmp8 = icmp slt i64 %indvars.iv, %tmp5 88 br i1 %cmp8, label %for.body.9, label %for.end.17 89 90for.body.9: ; preds = %for.cond.7 91 %arrayidx11 = getelementptr inbounds i32, i32* %B, i64 %indvars.iv 92 %tmp6 = load i32, i32* %arrayidx11, align 4 93 %arrayidx13 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv 94 %tmp7 = load i32, i32* %arrayidx13, align 4 95 %add14 = add nsw i32 %tmp7, %tmp6 96 store i32 %add14, i32* %arrayidx13, align 4 97 br label %for.inc.15 98 99for.inc.15: ; preds = %for.body.9 100 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 101 br label %for.cond.7 102 103for.end.17: ; preds = %for.cond.7 104 %tobool18 = icmp eq i32 %timeit, 0 105 br i1 %tobool18, label %if.end.20, label %if.then.19 106 107if.then.19: ; preds = %for.end.17 108 call void @timer_stop() 109 br label %if.end.20 110 111if.end.20: ; preds = %for.end.17, %if.then.19 112 ret void 113} 114 115declare void @timer_start() 116declare void @timer_stop() 117