1 ; RUN: opt -S -gvn-hoist < %s | FileCheck %s 2 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 3 target triple = "x86_64-unknown-linux-gnu" 4 5 define void @test1(i1 %a, i1** %d) { 6 entry: 7 %0 = load i1*, i1** %d, align 8 8 br i1 %a, label %if.then, label %if.else 9 10 if.then: ; preds = %entry 11 br label %if.end 12 13 if.else: ; preds = %entry 14 br label %if.end 15 16 if.end: ; preds = %if.else, %if.then 17 %c.0 = phi i1 [ 1, %if.then ], [ 0, %if.else ] 18 br i1 %c.0, label %if.then2, label %if.else3 19 20 if.then2: ; preds = %if.end 21 %rc = getelementptr inbounds i1, i1* %0, i64 0 22 store i1 %c.0, i1* %rc, align 4 23 br label %if.end6 24 25 if.else3: ; preds = %if.end 26 %rc5 = getelementptr inbounds i1, i1* %0, i64 0 27 store i1 %c.0, i1* %rc5, align 4 28 br label %if.end6 29 30 if.end6: ; preds = %if.else3, %if.then2 31 ret void 32 } 33 34 ; CHECK-LABEL: define void @test1( 35 ; CHECK: %[[load:.*]] = load i1*, i1** %d, align 8 36 ; CHECK: %[[phi:.*]] = phi i1 [ true, {{.*}} ], [ false, {{.*}} ] 37 38 ; CHECK: %[[gep0:.*]] = getelementptr inbounds i1, i1* %[[load]], i64 0 39 ; CHECK: store i1 %[[phi]], i1* %[[gep0]], align 4 40 41 ; Check that store instructions are hoisted. 42 ; CHECK-NOT: store
