xref: /aosp_15_r20/external/llvm/test/Transforms/LICM/2007-10-01-PromoteSafeValue.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -licm -S | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker; Promote value if at least one use is safe
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard Workerdefine i32 @f2(i32* %p, i8* %q) {
6*9880d681SAndroid Build Coastguard Workerentry:
7*9880d681SAndroid Build Coastguard Worker        br label %loop.head
8*9880d681SAndroid Build Coastguard Worker
9*9880d681SAndroid Build Coastguard Workerloop.head:              ; preds = %cond.true, %entry
10*9880d681SAndroid Build Coastguard Worker        store i32 20, i32* %p
11*9880d681SAndroid Build Coastguard Worker        %tmp3.i = icmp eq i8* null, %q            ; <i1> [#uses=1]
12*9880d681SAndroid Build Coastguard Worker        br i1 %tmp3.i, label %exit, label %cond.true
13*9880d681SAndroid Build Coastguard Worker
14*9880d681SAndroid Build Coastguard Workercond.true:              ; preds = %loop.head
15*9880d681SAndroid Build Coastguard Worker        store i32 40, i32* %p
16*9880d681SAndroid Build Coastguard Worker        br label %loop.head
17*9880d681SAndroid Build Coastguard Worker
18*9880d681SAndroid Build Coastguard Worker; CHECK: exit:
19*9880d681SAndroid Build Coastguard Worker; CHECK: store i32 20, i32* %p
20*9880d681SAndroid Build Coastguard Workerexit:           ; preds = %loop.head
21*9880d681SAndroid Build Coastguard Worker        ret i32 0
22*9880d681SAndroid Build Coastguard Worker}
23*9880d681SAndroid Build Coastguard Worker
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