xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/SwitchLowering.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -march=x86 | grep cmp | count 1
2*9880d681SAndroid Build Coastguard Worker; PR964
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workerdefine i8* @FindChar(i8* %CurPtr) {
5*9880d681SAndroid Build Coastguard Workerentry:
6*9880d681SAndroid Build Coastguard Worker        br label %bb
7*9880d681SAndroid Build Coastguard Worker
8*9880d681SAndroid Build Coastguard Workerbb:             ; preds = %bb, %entry
9*9880d681SAndroid Build Coastguard Worker        %indvar = phi i32 [ 0, %entry ], [ %indvar.next, %bb ]          ; <i32> [#uses=3]
10*9880d681SAndroid Build Coastguard Worker        %CurPtr_addr.0.rec = bitcast i32 %indvar to i32         ; <i32> [#uses=1]
11*9880d681SAndroid Build Coastguard Worker        %gep.upgrd.1 = zext i32 %indvar to i64          ; <i64> [#uses=1]
12*9880d681SAndroid Build Coastguard Worker        %CurPtr_addr.0 = getelementptr i8, i8* %CurPtr, i64 %gep.upgrd.1            ; <i8*> [#uses=1]
13*9880d681SAndroid Build Coastguard Worker        %tmp = load i8, i8* %CurPtr_addr.0          ; <i8> [#uses=3]
14*9880d681SAndroid Build Coastguard Worker        %tmp2.rec = add i32 %CurPtr_addr.0.rec, 1               ; <i32> [#uses=1]
15*9880d681SAndroid Build Coastguard Worker        %tmp2 = getelementptr i8, i8* %CurPtr, i32 %tmp2.rec                ; <i8*> [#uses=1]
16*9880d681SAndroid Build Coastguard Worker        %indvar.next = add i32 %indvar, 1               ; <i32> [#uses=1]
17*9880d681SAndroid Build Coastguard Worker        switch i8 %tmp, label %bb [
18*9880d681SAndroid Build Coastguard Worker                 i8 0, label %bb7
19*9880d681SAndroid Build Coastguard Worker                 i8 120, label %bb7
20*9880d681SAndroid Build Coastguard Worker        ]
21*9880d681SAndroid Build Coastguard Worker
22*9880d681SAndroid Build Coastguard Workerbb7:            ; preds = %bb, %bb
23*9880d681SAndroid Build Coastguard Worker        tail call void @foo( i8 %tmp )
24*9880d681SAndroid Build Coastguard Worker        ret i8* %tmp2
25*9880d681SAndroid Build Coastguard Worker}
26*9880d681SAndroid Build Coastguard Worker
27*9880d681SAndroid Build Coastguard Workerdeclare void @foo(i8)
28*9880d681SAndroid Build Coastguard Worker
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