xref: /aosp_15_r20/external/llvm/test/Transforms/Mem2Reg/PromoteMemToRegister.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; Simple sanity check testcase.  Both alloca's should be eliminated.
2*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -mem2reg -S | not grep alloca
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workerdefine double @testfunc(i32 %i, double %j) {
5*9880d681SAndroid Build Coastguard Worker	%I = alloca i32		; <i32*> [#uses=4]
6*9880d681SAndroid Build Coastguard Worker	%J = alloca double		; <double*> [#uses=2]
7*9880d681SAndroid Build Coastguard Worker	store i32 %i, i32* %I
8*9880d681SAndroid Build Coastguard Worker	store double %j, double* %J
9*9880d681SAndroid Build Coastguard Worker	%t1 = load i32, i32* %I		; <i32> [#uses=1]
10*9880d681SAndroid Build Coastguard Worker	%t2 = add i32 %t1, 1		; <i32> [#uses=1]
11*9880d681SAndroid Build Coastguard Worker	store i32 %t2, i32* %I
12*9880d681SAndroid Build Coastguard Worker	%t3 = load i32, i32* %I		; <i32> [#uses=1]
13*9880d681SAndroid Build Coastguard Worker	%t4 = sitofp i32 %t3 to double		; <double> [#uses=1]
14*9880d681SAndroid Build Coastguard Worker	%t5 = load double, double* %J		; <double> [#uses=1]
15*9880d681SAndroid Build Coastguard Worker	%t6 = fmul double %t4, %t5		; <double> [#uses=1]
16*9880d681SAndroid Build Coastguard Worker	ret double %t6
17*9880d681SAndroid Build Coastguard Worker}
18*9880d681SAndroid Build Coastguard Worker
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