1 ; RUN: opt -S -O2 -enable-gvn-hoist < %s | FileCheck %s 2 3 ; Check that the inlined loads are hoisted. 4 ; CHECK-LABEL: define i32 @fun( 5 ; CHECK-LABEL: entry: 6 ; CHECK: load i32, i32* @A 7 ; CHECK: if.then: 8 9 @A = external global i32 10 @B = external global i32 11 @C = external global i32 12 13 define i32 @loadA() { 14 %a = load i32, i32* @A 15 ret i32 %a 16 } 17 18 define i32 @fun(i1 %c) { 19 entry: 20 br i1 %c, label %if.then, label %if.else 21 22 if.then: 23 store i32 1, i32* @B 24 %call1 = call i32 @loadA() 25 store i32 2, i32* @C 26 br label %if.endif 27 28 if.else: 29 store i32 2, i32* @C 30 %call2 = call i32 @loadA() 31 store i32 1, i32* @B 32 br label %if.endif 33 34 if.endif: 35 %ret = phi i32 [ %call1, %if.then ], [ %call2, %if.else ] 36 ret i32 %ret 37 } 38 39
