1 ; RUN: opt < %s -instcombine -mem2reg -simplifycfg | \ 2 ; RUN: llvm-dis | grep -v store | not grep "i32 1" 3 4 ; Test to make sure that instcombine does not accidentally propagate the load 5 ; into the PHI, which would break the program. 6 7 define i32 @test(i1 %C) { 8 entry: 9 %X = alloca i32 ; <i32*> [#uses=3] 10 %X2 = alloca i32 ; <i32*> [#uses=2] 11 store i32 1, i32* %X 12 store i32 2, i32* %X2 13 br i1 %C, label %cond_true.i, label %cond_continue.i 14 15 cond_true.i: ; preds = %entry 16 br label %cond_continue.i 17 18 cond_continue.i: ; preds = %cond_true.i, %entry 19 %mem_tmp.i.0 = phi i32* [ %X, %cond_true.i ], [ %X2, %entry ] ; <i32*> [#uses=1] 20 store i32 3, i32* %X 21 %tmp.3 = load i32, i32* %mem_tmp.i.0 ; <i32> [#uses=1] 22 ret i32 %tmp.3 23 } 24 25 26
