27 lines · plain
1; RUN: opt < %s -passes=instcombine -S | grep "load volatile" | count 22; PR24963target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"4target triple = "i386-apple-darwin8"5@g_1 = internal global i32 0 ; <ptr> [#uses=3]6 7define i32 @main() nounwind {8entry:9 %tmp93 = icmp slt i32 0, 10 ; <i1> [#uses=0]10 %tmp34 = load volatile i32, ptr @g_1, align 4 ; <i32> [#uses=1]11 br label %bb12 13bb: ; preds = %bb, %entry14 %b.0.reg2mem.0 = phi i32 [ 0, %entry ], [ %tmp6, %bb ] ; <i32> [#uses=1]15 %tmp3.reg2mem.0 = phi i32 [ %tmp3, %bb ], [ %tmp34, %entry ]16 %tmp4 = add i32 %tmp3.reg2mem.0, 5 ; <i32> [#uses=1]17 store volatile i32 %tmp4, ptr @g_1, align 418 %tmp6 = add i32 %b.0.reg2mem.0, 1 ; <i32> [#uses=2]19 %tmp9 = icmp slt i32 %tmp6, 10 ; <i1> [#uses=1]20 %tmp3 = load volatile i32, ptr @g_1, align 4 ; <i32> [#uses=1]21 br i1 %tmp9, label %bb, label %bb1122 23bb11: ; preds = %bb24 ret i32 025}26 27