; RUN: opt -O2 -S < %s | FileCheck %s @data = common global i32* null, align 8 define i32 @fct1(i32 %a) nounwind uwtable ssp { entry: %a.addr = alloca i32, align 4 %res = alloca i32, align 4 %i = alloca i32, align 4 store i32 %a, i32* %a.addr, align 4 %tmp = load i32* %a.addr, align 4 %idxprom = sext i32 %tmp to i64 %tmp1 = load i32** @data, align 8 %arrayidx = getelementptr inbounds i32* %tmp1, i64 %idxprom %tmp2 = load i32* %arrayidx, align 4 %tmp3 = load i32* %a.addr, align 4 %add = add nsw i32 %tmp3, 1 %idxprom1 = sext i32 %add to i64 %tmp4 = load i32** @data, align 8 %arrayidx2 = getelementptr inbounds i32* %tmp4, i64 %idxprom1 %tmp5 = load i32* %arrayidx2, align 4 %mul = mul nsw i32 %tmp2, %tmp5 store i32 %mul, i32* %res, align 4 store i32 0, i32* %i, align 4 store i32 0, i32* %i, align 4 br label %for.cond for.cond: ; preds = %for.inc, %entry %tmp6 = load i32* %i, align 4 %tmp7 = load i32* %res, align 4 %cmp = icmp slt i32 %tmp6, %tmp7 br i1 %cmp, label %for.body, label %for.end for.body: ; preds = %for.cond %tmp8 = load i32* %i, align 4 %idxprom3 = sext i32 %tmp8 to i64 %tmp9 = load i32** @data, align 8 %arrayidx4 = getelementptr inbounds i32* %tmp9, i64 %idxprom3 call void @fct0(i32* %arrayidx4) br label %for.inc for.inc: ; preds = %for.body %tmp10 = load i32* %i, align 4 %inc = add nsw i32 %tmp10, 1 store i32 %inc, i32* %i, align 4 br label %for.cond for.end: ; preds = %for.cond store i32 0, i32* %i, align 4 br label %for.cond5 for.cond5: ; preds = %for.inc10, %for.end %tmp11 = load i32* %i, align 4 %tmp12 = load i32* %res, align 4 %cmp6 = icmp slt i32 %tmp11, %tmp12 br i1 %cmp6, label %for.body7, label %for.end12 for.body7: ; preds = %for.cond5 %tmp13 = load i32* %i, align 4 %idxprom8 = sext i32 %tmp13 to i64 %tmp14 = load i32** @data, align 8 %arrayidx9 = getelementptr inbounds i32* %tmp14, i64 %idxprom8 call void @fct0(i32* %arrayidx9) br label %for.inc10 for.inc10: ; preds = %for.body7 %tmp15 = load i32* %i, align 4 %inc11 = add nsw i32 %tmp15, 1 store i32 %inc11, i32* %i, align 4 br label %for.cond5 for.end12: ; preds = %for.cond5 store i32 0, i32* %i, align 4 br label %for.cond13 for.cond13: ; preds = %for.inc18, %for.end12 %tmp16 = load i32* %i, align 4 %tmp17 = load i32* %res, align 4 %cmp14 = icmp slt i32 %tmp16, %tmp17 br i1 %cmp14, label %for.body15, label %for.end20 for.body15: ; preds = %for.cond13 %tmp18 = load i32* %i, align 4 %idxprom16 = sext i32 %tmp18 to i64 %tmp19 = load i32** @data, align 8 %arrayidx17 = getelementptr inbounds i32* %tmp19, i64 %idxprom16 call void @fct0(i32* %arrayidx17) br label %for.inc18 for.inc18: ; preds = %for.body15 %tmp20 = load i32* %i, align 4 %inc19 = add nsw i32 %tmp20, 1 store i32 %inc19, i32* %i, align 4 br label %for.cond13 for.end20: ; preds = %for.cond13 %tmp21 = load i32* %res, align 4 ret i32 %tmp21 } declare void @fct0(i32*) define i32 @fct2(i32 %a) nounwind uwtable inlinehint ssp { entry: %a.addr = alloca i32, align 4 %res = alloca i32, align 4 %i = alloca i32, align 4 store i32 %a, i32* %a.addr, align 4 %tmp = load i32* %a.addr, align 4 %shl = shl i32 %tmp, 1 %idxprom = sext i32 %shl to i64 %tmp1 = load i32** @data, align 8 %arrayidx = getelementptr inbounds i32* %tmp1, i64 %idxprom %tmp2 = load i32* %arrayidx, align 4 %tmp3 = load i32* %a.addr, align 4 %shl1 = shl i32 %tmp3, 1 %add = add nsw i32 %shl1, 13 %idxprom2 = sext i32 %add to i64 %tmp4 = load i32** @data, align 8 %arrayidx3 = getelementptr inbounds i32* %tmp4, i64 %idxprom2 %tmp5 = load i32* %arrayidx3, align 4 %mul = mul nsw i32 %tmp2, %tmp5 store i32 %mul, i32* %res, align 4 store i32 0, i32* %i, align 4 store i32 0, i32* %i, align 4 br label %for.cond for.cond: ; preds = %for.inc, %entry %tmp6 = load i32* %i, align 4 %tmp7 = load i32* %res, align 4 %cmp = icmp slt i32 %tmp6, %tmp7 br i1 %cmp, label %for.body, label %for.end for.body: ; preds = %for.cond %tmp8 = load i32* %i, align 4 %idxprom4 = sext i32 %tmp8 to i64 %tmp9 = load i32** @data, align 8 %arrayidx5 = getelementptr inbounds i32* %tmp9, i64 %idxprom4 call void @fct0(i32* %arrayidx5) br label %for.inc for.inc: ; preds = %for.body %tmp10 = load i32* %i, align 4 %inc = add nsw i32 %tmp10, 1 store i32 %inc, i32* %i, align 4 br label %for.cond for.end: ; preds = %for.cond store i32 0, i32* %i, align 4 br label %for.cond6 for.cond6: ; preds = %for.inc11, %for.end %tmp11 = load i32* %i, align 4 %tmp12 = load i32* %res, align 4 %cmp7 = icmp slt i32 %tmp11, %tmp12 br i1 %cmp7, label %for.body8, label %for.end13 for.body8: ; preds = %for.cond6 %tmp13 = load i32* %i, align 4 %idxprom9 = sext i32 %tmp13 to i64 %tmp14 = load i32** @data, align 8 %arrayidx10 = getelementptr inbounds i32* %tmp14, i64 %idxprom9 call void @fct0(i32* %arrayidx10) br label %for.inc11 for.inc11: ; preds = %for.body8 %tmp15 = load i32* %i, align 4 %inc12 = add nsw i32 %tmp15, 1 store i32 %inc12, i32* %i, align 4 br label %for.cond6 for.end13: ; preds = %for.cond6 store i32 0, i32* %i, align 4 br label %for.cond14 for.cond14: ; preds = %for.inc19, %for.end13 %tmp16 = load i32* %i, align 4 %tmp17 = load i32* %res, align 4 %cmp15 = icmp slt i32 %tmp16, %tmp17 br i1 %cmp15, label %for.body16, label %for.end21 for.body16: ; preds = %for.cond14 %tmp18 = load i32* %i, align 4 %idxprom17 = sext i32 %tmp18 to i64 %tmp19 = load i32** @data, align 8 %arrayidx18 = getelementptr inbounds i32* %tmp19, i64 %idxprom17 call void @fct0(i32* %arrayidx18) br label %for.inc19 for.inc19: ; preds = %for.body16 %tmp20 = load i32* %i, align 4 %inc20 = add nsw i32 %tmp20, 1 store i32 %inc20, i32* %i, align 4 br label %for.cond14 for.end21: ; preds = %for.cond14 %tmp21 = load i32* %res, align 4 ret i32 %tmp21 } define i32 @fct3(i32 %c) nounwind uwtable ssp { entry: ;CHECK-LABEL: @fct3( ;CHECK: call i32 @fct1 ; The inline keyword gives a sufficient benefits to inline fct2 ;CHECK-NOT: call i32 @fct2 %c.addr = alloca i32, align 4 store i32 %c, i32* %c.addr, align 4 %tmp = load i32* %c.addr, align 4 %call = call i32 @fct1(i32 %tmp) %tmp1 = load i32* %c.addr, align 4 %call1 = call i32 @fct2(i32 %tmp1) %add = add nsw i32 %call, %call1 ret i32 %add } define i32 @fct4(i32 %c) minsize nounwind uwtable ssp { entry: ;CHECK-LABEL: @fct4( ;CHECK: call i32 @fct1 ; With Oz (minsize attribute), the benefit of inlining fct2 ; is the same as fct1, thus no inlining for fct2 ;CHECK: call i32 @fct2 %c.addr = alloca i32, align 4 store i32 %c, i32* %c.addr, align 4 %tmp = load i32* %c.addr, align 4 %call = call i32 @fct1(i32 %tmp) %tmp1 = load i32* %c.addr, align 4 %call1 = call i32 @fct2(i32 %tmp1) %add = add nsw i32 %call, %call1 ret i32 %add }