PromoteMemToRegister.ll
706 Bytes
; Simple sanity check testcase. Both alloca's should be eliminated.
; RUN: opt < %s -debugify -mem2reg -check-debugify -S 2>&1 | FileCheck %s
; CHECK-NOT: alloca
; CHECK: CheckModuleDebugify: PASS
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, i32* %I ; <i32> [#uses=1]
%t2 = add i32 %t1, 1 ; <i32> [#uses=1]
store i32 %t2, i32* %I
%t3 = load i32, i32* %I ; <i32> [#uses=1]
%t4 = sitofp i32 %t3 to double ; <double> [#uses=1]
%t5 = load double, double* %J ; <double> [#uses=1]
%t6 = fmul double %t4, %t5 ; <double> [#uses=1]
ret double %t6
}