; RUN: opt -scalar-evolution -analyze < %s | FileCheck %s ; ; This checks if the min and max expressions are properly recognized by ; ScalarEvolution even though they the ICmpInst and SelectInst have different ; types. ; ; #define max(a, b) (a > b ? a : b) ; #define min(a, b) (a < b ? a : b) ; ; void f(int *A, int N) { ; for (int i = 0; i < N; i++) { ; A[max(0, i - 3)] = A[min(N, i + 3)] * 2; ; } ; } ; target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" define void @f(i32* %A, i32 %N) { bb: br label %bb1 bb1: ; preds = %bb2, %bb %i.0 = phi i32 [ 0, %bb ], [ %tmp23, %bb2 ] %i.0.1 = sext i32 %i.0 to i64 %tmp = icmp slt i32 %i.0, %N br i1 %tmp, label %bb2, label %bb24 bb2: ; preds = %bb1 %tmp3 = add nuw nsw i32 %i.0, 3 %tmp4 = icmp slt i32 %tmp3, %N %tmp5 = sext i32 %tmp3 to i64 %tmp6 = sext i32 %N to i64 %tmp9 = select i1 %tmp4, i64 %tmp5, i64 %tmp6 ; min(N, i+3) ; CHECK: select i1 %tmp4, i64 %tmp5, i64 %tmp6 ; CHECK-NEXT: --> (-1 + (-1 * ((-1 + (-1 * (sext i32 {3,+,1}<%bb1> to i64))) smax (-1 + (-1 * (sext i32 %N to i64)))))) %tmp11 = getelementptr inbounds i32, i32* %A, i64 %tmp9 %tmp12 = load i32, i32* %tmp11, align 4 %tmp13 = shl nsw i32 %tmp12, 1 %tmp14 = icmp sge i32 3, %i.0 %tmp17 = add nsw i64 %i.0.1, -3 %tmp19 = select i1 %tmp14, i64 0, i64 %tmp17 ; max(0, i - 3) ; CHECK: select i1 %tmp14, i64 0, i64 %tmp17 ; CHECK-NEXT: --> (-3 + (3 smax {0,+,1}<%bb1>)) %tmp21 = getelementptr inbounds i32, i32* %A, i64 %tmp19 store i32 %tmp13, i32* %tmp21, align 4 %tmp23 = add nuw nsw i32 %i.0, 1 br label %bb1 bb24: ; preds = %bb1 ret void }