; RUN: llc < %s -mcpu=atom -mtriple=i686-linux | FileCheck %s ; CHECK: addl ({{%[a-z]+}},[[reg:%[a-z]+]],4) ; CHECK-NEXT: movl ; CHECK-NEXT: addl 4({{%[a-z]+}},[[reg:%[a-z]+]],4) ; CHECK-NEXT: incl ; Test for the FixupLEAs pre-emit pass. ; An LEA should NOT be substituted for the ADD instruction ; that increments the array pointer if it is greater than 5 instructions ; away from the memory reference that uses it. ; Original C code: clang -m32 -S -O2 ;int test(int n, int * array, int * m, int * array2) ;{ ; int i, j = 0; ; int sum = 0; ; for (i = 0, j = 0; i < n;) { ; ++i; ; *m += array2[j++]; ; sum += array[i]; ; } ; return sum; ;} define i32 @test(i32 %n, ptr nocapture %array, ptr nocapture %k, ptr nocapture %l, ptr nocapture %m, ptr nocapture %array2) #0 { entry: %cmp7 = icmp sgt i32 %n, 0 br i1 %cmp7, label %for.body.lr.ph, label %for.end for.body.lr.ph: ; preds = %entry %.pre = load i32, ptr %m, align 4 br label %for.body for.body: ; preds = %for.body, %for.body.lr.ph %0 = phi i32 [ %.pre, %for.body.lr.ph ], [ %add, %for.body ] %sum.010 = phi i32 [ 0, %for.body.lr.ph ], [ %add3, %for.body ] %j.09 = phi i32 [ 0, %for.body.lr.ph ], [ %inc1, %for.body ] %inc1 = add nsw i32 %j.09, 1 %arrayidx = getelementptr inbounds i32, ptr %array2, i32 %j.09 store i32 %0, ptr %m, align 4 store i32 %sum.010, ptr %m, align 4 store i32 %0, ptr %m, align 4 %1 = load i32, ptr %arrayidx, align 4 %add = add nsw i32 %0, %1 store i32 %add, ptr %m, align 4 %arrayidx2 = getelementptr inbounds i32, ptr %array, i32 %inc1 %2 = load i32, ptr %arrayidx2, align 4 %add3 = add nsw i32 %2, %sum.010 %exitcond = icmp eq i32 %inc1, %n br i1 %exitcond, label %for.end, label %for.body for.end: ; preds = %for.body, %entry %sum.0.lcssa = phi i32 [ 0, %entry ], [ %add3, %for.body ] ret i32 %sum.0.lcssa }