xref: /aosp_15_r20/external/llvm/test/Transforms/InstCombine/sdiv-2.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -disable-output
2*9880d681SAndroid Build Coastguard Worker; PR3144
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workerdefine fastcc i32 @func(i32 %length) nounwind {
5*9880d681SAndroid Build Coastguard Workerentry:
6*9880d681SAndroid Build Coastguard Worker	%0 = icmp ne i32 %length, -1		; <i1> [#uses=1]
7*9880d681SAndroid Build Coastguard Worker	%iftmp.13.0 = select i1 %0, i128 0, i128 200000000		; <i128> [#uses=2]
8*9880d681SAndroid Build Coastguard Worker	%1 = sdiv i128 %iftmp.13.0, 10		; <i128> [#uses=1]
9*9880d681SAndroid Build Coastguard Worker	br label %bb5
10*9880d681SAndroid Build Coastguard Worker
11*9880d681SAndroid Build Coastguard Workerbb5:		; preds = %bb8, %entry
12*9880d681SAndroid Build Coastguard Worker	%v.0 = phi i128 [ 0, %entry ], [ %6, %bb8 ]		; <i128> [#uses=2]
13*9880d681SAndroid Build Coastguard Worker	%2 = icmp sgt i128 %v.0, %1		; <i1> [#uses=1]
14*9880d681SAndroid Build Coastguard Worker	br i1 %2, label %overflow, label %bb7
15*9880d681SAndroid Build Coastguard Worker
16*9880d681SAndroid Build Coastguard Workerbb7:		; preds = %bb5
17*9880d681SAndroid Build Coastguard Worker	%3 = mul i128 %v.0, 10		; <i128> [#uses=2]
18*9880d681SAndroid Build Coastguard Worker	%4 = sub i128 %iftmp.13.0, 0		; <i128> [#uses=1]
19*9880d681SAndroid Build Coastguard Worker	%5 = icmp slt i128 %4, %3		; <i1> [#uses=1]
20*9880d681SAndroid Build Coastguard Worker	br i1 %5, label %overflow, label %bb8
21*9880d681SAndroid Build Coastguard Worker
22*9880d681SAndroid Build Coastguard Workerbb8:		; preds = %bb7
23*9880d681SAndroid Build Coastguard Worker	%6 = add i128 0, %3		; <i128> [#uses=1]
24*9880d681SAndroid Build Coastguard Worker	br label %bb5
25*9880d681SAndroid Build Coastguard Worker
26*9880d681SAndroid Build Coastguard Workeroverflow:		; preds = %bb7, %bb5
27*9880d681SAndroid Build Coastguard Worker	ret i32 1
28*9880d681SAndroid Build Coastguard Worker}
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