PromoteMemToRegister.ll   [plain text]

; Simple sanity check testcase.  Both alloca's should be eliminated.
; RUN: llvm-as < %s | opt -mem2reg | llvm-dis | not grep alloca

define double @testfunc(i32 %i, double %j) {
	%I = alloca i32		; <i32*> [#uses=4]
	%J = alloca double		; <double*> [#uses=2]
	store i32 %i, i32* %I
	store double %j, double* %J
	%t1 = load i32* %I		; <i32> [#uses=1]
	%t2 = add i32 %t1, 1		; <i32> [#uses=1]
	store i32 %t2, i32* %I
	%t3 = load i32* %I		; <i32> [#uses=1]
	%t4 = sitofp i32 %t3 to double		; <double> [#uses=1]
	%t5 = load double* %J		; <double> [#uses=1]
	%t6 = mul double %t4, %t5		; <double> [#uses=1]
	ret double %t6
}