1 ; RUN: llc -march=x86-64 < %s | FileCheck %s 2 ; rdar://9081094 3 4 ; LSR shouldn't create lots of redundant address computations. 5 6 %0 = type { i32, [3 x i32] } 7 %1 = type { i32 (i32, i32, i32)*, i32, i32, [3 x i32], i8*, i8*, i8* } 8 9 @pgm = external hidden unnamed_addr global [5 x %0], align 32 10 @isa = external hidden unnamed_addr constant [13 x %1], align 32 11 12 define void @main_bb.i() nounwind { 13 ; CHECK: main_bb.i: 14 ; CHECK-NOT: ret 15 ; CHECK: addq $-16, 16 ; CHECK-NOT: ret 17 ; CHECK: ret 18 19 bb: 20 br label %bb38 21 22 bb38: ; preds = %bb200, %bb 23 %tmp39 = phi i64 [ %tmp201, %bb200 ], [ 0, %bb ] 24 %tmp40 = sub i64 0, %tmp39 25 %tmp47 = getelementptr [5 x %0]* @pgm, i64 0, i64 %tmp40, i32 0 26 %tmp34 = load i32* %tmp47, align 16 27 %tmp203 = icmp slt i32 %tmp34, 12 28 br i1 %tmp203, label %bb215, label %bb200 29 30 bb200: ; preds = %bb38 31 %tmp201 = add i64 %tmp39, 1 32 br label %bb38 33 34 bb215: ; preds = %bb38 35 %tmp50 = getelementptr [5 x %0]* @pgm, i64 0, i64 %tmp40, i32 1, i64 2 36 %tmp49 = getelementptr [5 x %0]* @pgm, i64 0, i64 %tmp40, i32 1, i64 1 37 %tmp48 = getelementptr [5 x %0]* @pgm, i64 0, i64 %tmp40, i32 1, i64 0 38 %tmp216 = add nsw i32 %tmp34, 1 39 store i32 %tmp216, i32* %tmp47, align 16 40 %tmp217 = sext i32 %tmp216 to i64 41 %tmp218 = getelementptr inbounds [13 x %1]* @isa, i64 0, i64 %tmp217, i32 3, i64 0 42 %tmp219 = load i32* %tmp218, align 8 43 store i32 %tmp219, i32* %tmp48, align 4 44 %tmp220 = getelementptr inbounds [13 x %1]* @isa, i64 0, i64 %tmp217, i32 3, i64 1 45 %tmp221 = load i32* %tmp220, align 4 46 store i32 %tmp221, i32* %tmp49, align 4 47 %tmp222 = getelementptr inbounds [13 x %1]* @isa, i64 0, i64 %tmp217, i32 3, i64 2 48 %tmp223 = load i32* %tmp222, align 8 49 store i32 %tmp223, i32* %tmp50, align 4 50 ret void 51 } 52
