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1; RUN: llc < %s -mcpu=atom -mtriple=i686-linux | FileCheck %s2; CHECK: addl ({{%[a-z]+}},[[reg:%[a-z]+]],4)3; CHECK-NEXT: movl4; CHECK-NEXT: addl 4({{%[a-z]+}},[[reg:%[a-z]+]],4)5; CHECK-NEXT: incl6 7; Test for the FixupLEAs pre-emit pass.8; An LEA should NOT be substituted for the ADD instruction9; that increments the array pointer if it is greater than 5 instructions10; away from the memory reference that uses it.11 12; Original C code: clang -m32 -S -O213;int test(int n, int * array, int * m, int * array2)14;{15; int i, j = 0;16; int sum = 0;17; for (i = 0, j = 0; i < n;) {18; ++i;19; *m += array2[j++];20; sum += array[i];21; }22; return sum;23;}24 25define i32 @test(i32 %n, ptr nocapture %array, ptr nocapture %k, ptr nocapture %l, ptr nocapture %m, ptr nocapture %array2) #0 {26entry:27 %cmp7 = icmp sgt i32 %n, 028 br i1 %cmp7, label %for.body.lr.ph, label %for.end29 30for.body.lr.ph: ; preds = %entry31 %.pre = load i32, ptr %m, align 432 br label %for.body33 34for.body: ; preds = %for.body, %for.body.lr.ph35 %0 = phi i32 [ %.pre, %for.body.lr.ph ], [ %add, %for.body ]36 %sum.010 = phi i32 [ 0, %for.body.lr.ph ], [ %add3, %for.body ]37 %j.09 = phi i32 [ 0, %for.body.lr.ph ], [ %inc1, %for.body ]38 %inc1 = add nsw i32 %j.09, 139 %arrayidx = getelementptr inbounds i32, ptr %array2, i32 %j.0940 store i32 %0, ptr %m, align 441 store i32 %sum.010, ptr %m, align 442 store i32 %0, ptr %m, align 443 %1 = load i32, ptr %arrayidx, align 444 %add = add nsw i32 %0, %145 store i32 %add, ptr %m, align 446 %arrayidx2 = getelementptr inbounds i32, ptr %array, i32 %inc147 %2 = load i32, ptr %arrayidx2, align 448 %add3 = add nsw i32 %2, %sum.01049 %exitcond = icmp eq i32 %inc1, %n50 br i1 %exitcond, label %for.end, label %for.body51 52for.end: ; preds = %for.body, %entry53 %sum.0.lcssa = phi i32 [ 0, %entry ], [ %add3, %for.body ]54 ret i32 %sum.0.lcssa55}56 57